First version with unit types on request.

ff-unitxc-converter/pom.xml

@@ -1,11 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  <modelVersion>4.0.0</modelVersion>
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <parent>
+	<modelVersion>4.0.0</modelVersion>
-    <groupId>net.forwardfire.unitxc</groupId>
+	<parent>
-    <artifactId>ff-unitxc</artifactId>
+		<groupId>net.forwardfire.unitxc</groupId>
-    <version>0.0.1-SNAPSHOT</version>
+		<artifactId>ff-unitxc</artifactId>
-  </parent>
+		<version>0.0.1-SNAPSHOT</version>
-  <artifactId>ff-unitxc-converter</artifactId>
+	</parent>
+	<artifactId>ff-unitxc-converter</artifactId>
 	<dependencies>
 		<dependency>
 			<groupId>org.slf4j</groupId>
@@ -17,5 +18,11 @@
 			<artifactId>commons-lang3</artifactId>
 			<scope>compile</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.codehaus.jettison</groupId>
+			<artifactId>jettison</artifactId>
+			<version>1.3.7</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 </project>

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/UnitXCFactory.java

@@ -27,19 +27,30 @@ import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
-import net.forwardfire.unitxc.config.UnitXCConfig;
 import net.forwardfire.unitxc.config.UnitXCConfigManager;
 import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.model.UnitXCConfig;
 import net.forwardfire.unitxc.module.UnitXCModuleSubstance;
-import net.forwardfire.unitxc.module.UnitXCModuleArea;
 import net.forwardfire.unitxc.module.UnitXCModuleElectricCurrent;
 import net.forwardfire.unitxc.module.UnitXCModuleLength;
 import net.forwardfire.unitxc.module.UnitXCModuleLuminousIntensity;
 import net.forwardfire.unitxc.module.UnitXCModuleMass;
-import net.forwardfire.unitxc.module.UnitXCModuleSpeed;
 import net.forwardfire.unitxc.module.UnitXCModuleTemperature;
 import net.forwardfire.unitxc.module.UnitXCModuleTime;
-import net.forwardfire.unitxc.module.UnitXCModuleVolume;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleAcceleration;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleArea;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleAreaDensity;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleJerk;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleJounce;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleMassDensity;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleMolarConcentration;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleMolarVolume;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleSpecificVolume;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleSpeed;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleVolume;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleVolumetricFlow;
+import net.forwardfire.unitxc.module.named.UnitXCModuleNewton;
 
 /**
  * The unit cross converter factory to create the manager.
@@ -57,9 +68,25 @@ public final class UnitXCFactory {
 			new UnitXCModuleLength(),
 			new UnitXCModuleMass(),
 			new UnitXCModuleTime(),
+			
+			// currently ordered here
 			new UnitXCModuleArea(),
 			new UnitXCModuleVolume(),
-			new UnitXCModuleSpeed()
+			new UnitXCModuleSpeed(),
+			new UnitXCModuleVolumetricFlow(),
+			new UnitXCModuleAcceleration(),
+			new UnitXCModuleJerk(),
+			new UnitXCModuleJounce(),
+			
+			// named
+			//new UnitXCModuleNewton(),
+			
+			// more derived
+			new UnitXCModuleAreaDensity(),
+			new UnitXCModuleMassDensity(),
+			new UnitXCModuleSpecificVolume(),
+			new UnitXCModuleMolarConcentration(),
+			new UnitXCModuleMolarVolume()
 			));
 			
 	
@@ -67,12 +94,18 @@ public final class UnitXCFactory {
 	}
 	
 	
+	private static UnitXCConfig buildAll(UnitXCConfig config,List<UnitXCConfigModule> configInit) {
+		UnitXCConfigBuilder builder = new UnitXCConfigBuilder(config);
+		configInit.forEach(ci -> ci.configModule(builder));
+		return config;
+	}
+	
 	public static UnitXCConfig createConfig() {
 		return createConfig(DEFAULT_CONFIG_MODULES);
 	}
 	
 	public static UnitXCConfig createConfig(List<UnitXCConfigModule> configInit) {
-		return UnitXCConfigModule.buildAll(new UnitXCConfig(), configInit);
+		return buildAll(new UnitXCConfig(), configInit);
 	}
 	
 	public static UnitXCManager createManager() {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/UnitXCManager.java

@@ -23,10 +23,9 @@
 
 package net.forwardfire.unitxc;
 
-import java.util.Collection;
-
 import net.forwardfire.unitxc.converter.UnitXConverter;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.UnitXCConfig;
 import net.forwardfire.unitxc.model.UnitXCGroup;
 
 /**
@@ -37,23 +36,13 @@ import net.forwardfire.unitxc.model.UnitXCGroup;
  */
 public interface UnitXCManager {
 	
-	/**
-	 * @return	Returns all unit types.
-	 */
-	Collection<UnitXCType> getUnitTypes();
-	
 	UnitXCType getUnitType(String id);
 	
-	boolean isUnitType(String id);
-
-	/**
-	 * @return	Returns all unit groups.
-	 */
-	Collection<UnitXCGroup> getUnitGroups();
-	
 	UnitXCGroup getUnitGroup(String id);
 	
 	boolean isUnitGroup(String id);
 	
 	UnitXConverter getConverter();
+	
+	UnitXCConfig getConfig();
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/UnitXCConfigManager.java

@@ -32,10 +32,9 @@ import org.apache.commons.lang3.Validate;
 
 import net.forwardfire.unitxc.UnitXCManager;
 import net.forwardfire.unitxc.converter.UnitXConverter;
-import net.forwardfire.unitxc.converter.UnitXConverterEngine;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.UnitXCConfig;
 import net.forwardfire.unitxc.model.UnitXCGroup;
-import net.forwardfire.unitxc.model.UnitXConverterResult;
 
 /**
  * 
@@ -46,66 +45,39 @@ import net.forwardfire.unitxc.model.UnitXConverterResult;
 public class UnitXCConfigManager implements UnitXCManager {
 
 	private final UnitXCConfig config;
-	private final Map<String,UnitXCType> unitTypes;
 	private final Map<String,UnitXCGroup> unitGroups;
 	private final UnitXConverter converter;
-	private final UnitXConverterEngine convertEngine;
 	
 	public UnitXCConfigManager(UnitXCConfig config) {
 		this.config = Validate.notNull(config);
-		this.unitTypes = Collections.unmodifiableMap(createUnitTypes(config.getUnitTypes()));
+		this.unitGroups = Collections.unmodifiableMap(createUnitGroups(config.getUnitGroups()));
-		this.unitGroups = Collections.unmodifiableMap(createUnitGroups(config.getUnitroups()));
+		this.converter = new UnitXConverter(this);
-		
-		this.convertEngine = new UnitXConverterEngine(this);
-		this.converter = new UnitXConverterImpl();
-	}
-	
-	private static Map<String,UnitXCType> createUnitTypes(Collection<UnitXCType> values) {
-		Map<String,UnitXCType> result = new HashMap<>();
-		values.forEach((value) -> {
-			putValue(result,value.getId(),value);
-			if (!value.getId().equals(value.getName())) { // fix time group
-				putValue(result,value.getName(),value);
-			}
-			if (!value.getName().equals(value.getNamePlural())) { // mmm normal
-				putValue(result,value.getNamePlural(),value);
-			}
-		});
-		return result;
-	}
-	
-	private static void putValue(Map<String,UnitXCType> result,String key,UnitXCType value) {
-		if (key == null) {
-			return;
-		}
-		Validate.isTrue(!result.containsKey(key),"Duplicate key: "+key);
-		result.put(key, value);
 	}
 	
 	private static Map<String,UnitXCGroup> createUnitGroups(Collection<UnitXCGroup> values) {
 		Map<String,UnitXCGroup> result = new HashMap<>();
-		values.forEach((value) -> result.put(value.getId(), value));
+		values.forEach((value) -> {
+			value.setTotalUnitTypes(value.getTypeGenerator().size());
+			result.put(value.getId(), value);
+		});
 		return result;
 	}
 	
 	@Override
-	public Collection<UnitXCType> getUnitTypes() {
+	public UnitXCConfig getConfig() {
-		return unitTypes.values();
+		return config;
 	}
 	
 	@Override
 	public UnitXCType getUnitType(String id) {
-		return Validate.notNull(unitTypes.get(Validate.notNull(id,"Null is not a validate id.")),"No type for: "+id);
+		UnitXCType result = null;
-	}
+		for (UnitXCGroup group:unitGroups.values()) {
-	
+			result = group.getTypeGenerator().getUnitType(id);
-	@Override
+			if (result != null) {
-	public boolean isUnitType(String id) {
+				break;
-		return unitTypes.containsKey(Validate.notBlank(id));
+			}
-	}
+		}
-	
+		return result;
-	@Override
-	public Collection<UnitXCGroup> getUnitGroups() {
-		return unitGroups.values();
 	}
 	
 	@Override
@@ -122,29 +94,5 @@ public class UnitXCConfigManager implements UnitXCManager {
 	public UnitXConverter getConverter() {
 		return converter;
 	}
-	
+
-	private class UnitXConverterImpl implements UnitXConverter {
-		
-		
-		@Override
-		public double convert(double value, String fromTypeId, String toTypeId) {
-			return convert(value, getUnitType(fromTypeId), getUnitType(toTypeId));
-		}
-		
-		@Override
-		public double convert(double value, UnitXCType fromType, UnitXCType toType) {
-			return convertStepped(value,fromType,toType).getResultValue();
-		}
-		
-		@Override
-		public UnitXConverterResult convertStepped(double value, String fromTypeId, String toTypeId) {
-			return convertStepped(value, getUnitType(fromTypeId), getUnitType(toTypeId));
-		}
-		
-		@Override
-		public UnitXConverterResult convertStepped(double value, UnitXCType fromType, UnitXCType toType) {
-			// TODO: rm casting
-			return convertEngine.convertStepped(value, (UnitXCType)fromType, (UnitXCType)toType);
-		}
-	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/UnitXCConfigModule.java

@@ -24,7 +24,6 @@
 package net.forwardfire.unitxc.config;
 
 import java.util.Arrays;
-import java.util.List;
 
 import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
 
@@ -43,10 +42,4 @@ public interface UnitXCConfigModule {
 		Arrays.asList(flag).forEach(f -> buf.append(f.toUpperCase()).append("_"));
 		return buf.deleteCharAt(buf.length()-1).toString();
 	}
-	
-	static UnitXCConfig buildAll(UnitXCConfig config,List<UnitXCConfigModule> configInit) {
-		UnitXCConfigBuilder builder = new UnitXCConfigBuilder(config);
-		configInit.forEach(ci -> ci.configModule(builder));
-		return config;
-	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/AbstractUnitXCTypeBuilder.java

@@ -28,8 +28,8 @@ import java.util.Collection;
 import java.util.List;
 import java.util.function.BiConsumer;
 
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
 
 /**
  * 
@@ -76,10 +76,6 @@ public abstract class AbstractUnitXCTypeBuilder<P,B> extends AbstractUnitXCBuild
 		return make((v) -> v.setAliasOfType(aliasOfType));
 	}
 	
-	public B setTypeGroupId(String typeGroupId) {
-		return make((v) -> v.setUnitGroupId(typeGroupId));
-	}
-	
 	public B addWebsiteWiki(String websiteLink) {
 		return addWebsiteLink("https://en.wikipedia.org/wiki/"+websiteLink);
 	}
@@ -105,11 +101,11 @@ public abstract class AbstractUnitXCTypeBuilder<P,B> extends AbstractUnitXCBuild
 	}
 	
 	public UnitXConverterStepBuilder<AbstractUnitXCTypeBuilder<P,B>> createFromBaseConverterSteps() {
-		return new UnitXConverterStepBuilder<>(this,(p,v) -> p.addFromBaseConverterSteps(v));
+		return new UnitXConverterStepBuilder<>(this,(p,v) -> p.addFromBaseConverterSteps(v),() -> "convert "+getValue().getId());
 	}
 	
 	public UnitXConverterStepBuilder<AbstractUnitXCTypeBuilder<P,B>> createToBaseConverterSteps() {
-		return new UnitXConverterStepBuilder<>(this,(p,v) -> p.addToBaseConverterSteps(v));
+		return new UnitXConverterStepBuilder<>(this,(p,v) -> p.addToBaseConverterSteps(v),() -> "convert "+getValue().getId());
 	}
 	
 	public B addFromBaseConverterStep(UnitXConverterStep unitTypeConverter) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCConfigBuilder.java

@@ -25,7 +25,8 @@ package net.forwardfire.unitxc.config.builder;
 
 import org.apache.commons.lang3.Validate;
 
-import net.forwardfire.unitxc.config.UnitXCConfig;
+import net.forwardfire.unitxc.model.UnitXCConfig;
+import net.forwardfire.unitxc.model.UnitXCGroup;
 import net.forwardfire.unitxc.model.UnitXCType;
 
 /**
@@ -51,15 +52,22 @@ public class UnitXCConfigBuilder {
 	}
 	
 	public UnitXCGroupBuilder createUnitGroup() {
-		return new UnitXCGroupBuilder(this);
+		return new UnitXCGroupBuilder(this, new UnitXCGroup(), (p,v) -> p.getConfig().addUnitGroup(v));
 	}
 	
-	public UnitXCTypeBuilder<UnitXCConfigBuilder> createUnitType() {
+	public UnitXCGroupBuilder extendUnitGroup(String groupId) {
-		return new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> p.getConfig().addUnitType(v));
+		UnitXCGroup group = findGroup(groupId);
+		return new UnitXCGroupBuilder(this, group, (p,v) -> {});
 	}
 	
-	private UnitXCType findType(String id) {
+	public UnitXCTypeBuilder<UnitXCConfigBuilder> createUnitType(String groupId) {
-		for (UnitXCType m:config.getUnitTypes()) {
+		UnitXCGroup group = findGroup(groupId);
+		return new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> group.addUnitType(v));
+	}
+	
+	private UnitXCGroup findGroup(String id) {
+		Validate.notBlank(id,"Can't search blank id.");
+		for (UnitXCGroup m:config.getUnitGroups()) {
 			if (m.getId().equals(id)) {
 				return m;
 			}
@@ -67,7 +75,16 @@ public class UnitXCConfigBuilder {
 		throw new IllegalArgumentException("Could not find: "+id);
 	}
 	
-	public UnitXCTypeBuilder<UnitXCConfigBuilder> extendUnitType(String id) {
+//	private UnitXCType findType(String id) {
-		return new UnitXCTypeBuilder<>(this,findType(id),(p,v) -> {});
+//		for (UnitXCType m:config.getUnitTypes()) {
-	}
+//			if (m.getId().equals(id)) {
+//				return m;
+//			}
+//		}
+//		throw new IllegalArgumentException("Could not find: "+id);
+//	}
+//	
+//	public UnitXCTypeBuilder<UnitXCConfigBuilder> extendUnitType(String id) {
+//		return new UnitXCTypeBuilder<>(this,findType(id),(p,v) -> {});
+//	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCGroupBuilder.java

@@ -23,9 +23,15 @@
 
 package net.forwardfire.unitxc.config.builder;
 
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.BiConsumer;
+
 import net.forwardfire.unitxc.model.UnitXCGroup;
 import net.forwardfire.unitxc.model.UnitXCGroupLevel;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.UnitXCTypeGenerator;
 
 /**
  * 
@@ -35,8 +41,37 @@ import net.forwardfire.unitxc.model.UnitXCType;
  */
 public class UnitXCGroupBuilder extends AbstractUnitXCBuilder<UnitXCConfigBuilder,UnitXCGroup,UnitXCGroupBuilder> {
 	
-	public UnitXCGroupBuilder(UnitXCConfigBuilder parent) {
+	public UnitXCGroupBuilder(UnitXCConfigBuilder parent, UnitXCGroup model, BiConsumer<UnitXCConfigBuilder, UnitXCGroup> parentBuilder) {
-		super(parent, new UnitXCGroup(), (p,v) -> p.getConfig().addUnitGroup(v));
+		super(parent, model, parentBuilder);
+		if (model.getTypeGenerator() == null) {
+			model.setTypeGenerator(new UnitXCTypeGenerator() {
+				
+				@Override
+				public long size() {
+					return model.getUnitTypes().size();
+				}
+				
+				@Override
+				public Iterator<String> getUnitTypes() {
+					List<String> result = new ArrayList<>();
+					model.getUnitTypes().forEach(t -> result.add(t.getId()));
+					return result.iterator();
+				}
+				
+				@Override
+				public UnitXCType getUnitType(String id) {
+					for (UnitXCType type:model.getUnitTypes()) {
+						if (type.getId().equals(id)) {
+							return type;
+						}
+						if (type.getName().equals(id)) {
+							return type;
+						}
+					}
+					return null;
+				}
+			});
+		}
 	}
 	
 	@Override
@@ -44,20 +79,24 @@ public class UnitXCGroupBuilder extends AbstractUnitXCBuilder<UnitXCConfigBuilde
 		return this;
 	}
 	
+	public UnitXCGroupJumpBuilder createGroupJump(String unitGroupId) {
+		return new UnitXCGroupJumpBuilder(getParent(),getValue(),unitGroupId);
+	}
+	
 	public UnitXCTypeBuilder<UnitXCGroupBuilder> createUnitType() {
-		return new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> p.getParent().getConfig().addUnitType(v)).setTypeGroupId(getValue().getId());
+		return new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> p.getValue().addUnitType(v));
 	}
 	
 	public UnitXCTypeSIPrefixBuilder<UnitXCGroupBuilder> createSIUnitTypes() {
-		return new UnitXCTypeSIPrefixBuilder<>(this,getParent()).setTypeGroupId(getValue().getId());
+		return new UnitXCTypeSIPrefixBuilder<>(this,this);
 	}
 	
-	public UnitXCTypeCompoundExponentBuilder createCompoundExponentUnitTypes(String unitTypeGroupId,int exponent) {
+	public UnitXCTypeCompoundExponentBuilder createCompoundExponentUnitTypes(String unitTypeId, int exponent) {
-		return new UnitXCTypeCompoundExponentBuilder(this,getParent(),unitTypeGroupId,exponent);
+		return new UnitXCTypeCompoundExponentBuilder(this, unitTypeId, exponent);
 	}
 	
 	public UnitXCTypeCompoundPairBuilder createCompoundPairUnitTypes(String groupId,String perGroupId) {
-		return new UnitXCTypeCompoundPairBuilder(this,getParent(),groupId,perGroupId);
+		return new UnitXCTypeCompoundPairBuilder(this,groupId,perGroupId);
 	}
 	
 	public UnitXCGroupBuilder setId(String id) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCGroupJumpBuilder.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.config.builder;
+
+
+import net.forwardfire.unitxc.model.UnitXCGroup;
+import net.forwardfire.unitxc.model.UnitXCGroupJump;
+import net.forwardfire.unitxc.model.UnitXCGroupJumpParameter;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+public class UnitXCGroupJumpBuilder extends AbstractUnitXCBuilder<UnitXCConfigBuilder,UnitXCGroupJump,UnitXCGroupJumpBuilder> {
+	
+	public UnitXCGroupJumpBuilder(UnitXCConfigBuilder parent, UnitXCGroup forGroup, String unitGroupId) {
+		super(parent, new UnitXCGroupJump(), (b,v) -> forGroup.getGroupJumps().add(v));
+		getValue().setUnitGroupId(unitGroupId);
+		getValue().setId(forGroup.getId()+"_"+unitGroupId);
+	}
+	
+	@Override
+	protected UnitXCGroupJumpBuilder getBuilder() {
+		return this;
+	}
+	
+	public UnitXCGroupJumpBuilder setId(String id) {
+		return make((v) -> v.setId(id));
+	}
+	
+	public UnitXCGroupJumpBuilder addJumpParameter(String id,String unitGroupId) {
+		return make((v) -> v.addJumpParameter(new UnitXCGroupJumpParameter(id, unitGroupId)));
+	}
+	
+	public UnitXConverterStepBuilder<UnitXCGroupJumpBuilder> createToGroupConverterSteps() {
+		return new UnitXConverterStepBuilder<>(this,(p,v) -> getValue().getToGroupConverterSteps().addAll(v),() -> "group jump");
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCTypeCompoundExponentBuilder.java

@@ -23,14 +23,14 @@
 
 package net.forwardfire.unitxc.config.builder;
 
-import java.util.ArrayList;
+import java.util.Iterator;
-import java.util.List;
 
 import org.apache.commons.lang3.Validate;
 
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
 import net.forwardfire.unitxc.model.UnitXCGroup;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.UnitXCTypeGenerator;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepReference;
 
 /**
  * 
@@ -40,17 +40,75 @@ import net.forwardfire.unitxc.model.UnitXCType;
  */
 public class UnitXCTypeCompoundExponentBuilder extends AbstractUnitXCBuilder<UnitXCGroupBuilder,Object,UnitXCTypeCompoundExponentBuilder> {
 	
-	private final UnitXCConfigBuilder builder;
 	private final String unitGroupId;
 	private final int exponent;
 	private String unitIdPostfix;
 	private String unitNamePrefix;
 	
-	public UnitXCTypeCompoundExponentBuilder(UnitXCGroupBuilder parent, UnitXCConfigBuilder builder,String unitGroupId,int exponent) {
+	public UnitXCTypeCompoundExponentBuilder(UnitXCGroupBuilder parent, String unitGroupId, int exponent) {
 		super(parent,new Object(), (p,v) -> {});
-		this.builder = builder;
 		this.unitGroupId = unitGroupId;
 		this.exponent = exponent;
+		parent.getValue().setTypeGenerator(new UnitXCTypeGenerator() {
+			
+			UnitXCGroup getGroup() {
+				UnitXCGroup group = null;
+				for (UnitXCGroup unitGroup:getParent().getParent().getConfig().getUnitGroups()) {
+					if (unitGroup.getId().equals(unitGroupId)) {
+						group = unitGroup;
+						break;
+					}
+				}
+				return group;
+			}
+			
+			@Override
+			public long size() {
+				return getGroup().getTypeGenerator().size();
+			}
+			
+			@Override
+			public Iterator<String> getUnitTypes() {
+				Iterator<String> g = getGroup().getTypeGenerator().getUnitTypes();
+				return new Iterator<String>() {
+					@Override
+					public boolean hasNext() {
+						return g.hasNext();
+					}
+					@Override
+					public String next() {
+						return g.next()+unitIdPostfix;
+					}
+				};
+			}
+			
+			@Override
+			public UnitXCType getUnitType(String id) {
+				if (!id.endsWith(unitIdPostfix)) {
+					return null;
+				}
+				String idRaw = id.substring(0, id.length()-unitIdPostfix.length());
+				UnitXCGroup group = getGroup();
+				UnitXCType unitType = group.getTypeGenerator().getUnitType(idRaw);
+				if (unitType == null) {
+					return null;
+				}
+
+				UnitXCTypeBuilder<Object> typeBuilder = new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> {});
+				typeBuilder
+					.setId(unitType.getId()+unitIdPostfix)
+					.setName(unitNamePrefix+unitType.getName())
+					.addTypeFlags(unitType.getTypeFlags());
+				
+				for (int i=0;i<UnitXCTypeCompoundExponentBuilder.this.exponent;i++) {
+					typeBuilder.addToBaseConverterStep(new UnitXCConverterStepReference(unitType.getId(),true));
+					typeBuilder.addFromBaseConverterStep(new UnitXCConverterStepReference(unitType.getId(),false));
+				}
+				typeBuilder.build();
+				typeBuilder.getValue().setUnitGroup(parent.getValue());
+				return typeBuilder.getValue();
+			}
+		});
 	}
 	
 	@Override
@@ -62,7 +120,7 @@ public class UnitXCTypeCompoundExponentBuilder extends AbstractUnitXCBuilder<Uni
 	protected void buildPreValue(Object v) {
 		
 		UnitXCGroup group = null;
-		for (UnitXCGroup unitGroup:builder.getConfig().getUnitroups()) {
+		for (UnitXCGroup unitGroup:getParent().getParent().getConfig().getUnitGroups()) {
 			if (unitGroup.getId().equals(unitGroupId)) {
 				group = unitGroup;
 				break;
@@ -71,35 +129,6 @@ public class UnitXCTypeCompoundExponentBuilder extends AbstractUnitXCBuilder<Uni
 		Validate.notNull(group,"Could not find group: "+unitGroupId);
 		
 		getParent().getValue().getDerivedFrom().add(unitGroupId);
-		
-		for (UnitXCType unitType:new ArrayList<>(builder.getConfig().getUnitTypes())) {
-			if (!unitType.getUnitGroupId().equals(group.getId())) {
-				continue;
-			}
-			UnitXCTypeBuilder<UnitXCConfigBuilder> typeBuilder = builder.createUnitType()
-				.setId(unitType.getId()+unitIdPostfix)
-				.setName(unitNamePrefix+unitType.getName())
-				.setTypeGroupId(getParent().getValue().getId())
-				.addTypeFlags(unitType.getTypeFlags());
-			
-			for (int i=0;i<exponent;i++) {
-				typeBuilder.addToBaseConverterSteps(cloneSteps(exponent,unitType.getToBaseConverterSteps()));
-				typeBuilder.addFromBaseConverterSteps(cloneSteps(exponent,unitType.getFromBaseConverterSteps()));
-			}
-			typeBuilder.build();
-		}
-	}
-	
-	private List<UnitXConverterStep> cloneSteps(int exponent,List<UnitXConverterStep> steps) {
-		List<UnitXConverterStep> result = new ArrayList<>();
-		for (UnitXConverterStep step:steps) {
-			UnitXConverterStep clone = step.clone();
-			if (exponent != 0) {
-				clone.addStepReason("CompoundExponent: "+exponent);
-			}
-			result.add(clone);
-		}
-		return result;
 	}
 	
 	public UnitXCTypeCompoundExponentBuilder setUnitIdPostfix(String unitIdPostfix) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCTypeCompoundPairBuilder.java

@@ -23,35 +23,124 @@
 
 package net.forwardfire.unitxc.config.builder;
 
-import java.util.ArrayList;
+import java.util.Iterator;
-import java.util.List;
 
 import org.apache.commons.lang3.Validate;
 
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
 import net.forwardfire.unitxc.model.UnitXCGroup;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.UnitXCTypeGenerator;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepReference;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueNamedParameter;
 
 /**
- * 
+ * Build compound pair units.
  * 
  * @author Willem Cazander
  * @version 1.0 Oct 26, 2015
  */
-public class UnitXCTypeCompoundPairBuilder extends AbstractUnitXCBuilder<UnitXCGroupBuilder,Object,UnitXCTypeCompoundPairBuilder> {
+public class UnitXCTypeCompoundPairBuilder extends AbstractUnitXCBuilder<UnitXCGroupBuilder,UnitXCGroup,UnitXCTypeCompoundPairBuilder> {
 	
 	public static final String PER_ID = "/";
 	public static final String PER_NAME = " per ";
 	
-	private final UnitXCConfigBuilder builder;
 	private final String groupId;
 	private final String perGroupId;
 	
-	public UnitXCTypeCompoundPairBuilder(UnitXCGroupBuilder parent, UnitXCConfigBuilder builder,String groupId,String perGroupId) {
+	public UnitXCTypeCompoundPairBuilder(UnitXCGroupBuilder parent,String groupId,String perGroupId) {
-		super(parent,new Object(), (p,v) -> {});
+		super(parent,parent.getValue(), (p,v) -> {});
-		this.builder = builder;
 		this.groupId = groupId;
 		this.perGroupId = perGroupId;
+		
+		parent.getValue().setTypeGenerator(new UnitXCTypeGenerator() {
+
+			UnitXCGroup getGroup(String id) {
+				UnitXCGroup perGroup = null;
+				for (UnitXCGroup unitGroup:getParent().getParent().getConfig().getUnitGroups()) {
+					if (unitGroup.getId().equals(id)) {
+						perGroup = unitGroup;
+					}
+				}
+				return perGroup;
+			}
+			
+			@Override
+			public long size() {
+				UnitXCGroup group = getGroup(groupId);
+				UnitXCGroup perGroup = getGroup(perGroupId);
+				return group.getTypeGenerator().size()*perGroup.getTypeGenerator().size();
+			}
+			
+			@Override
+			public Iterator<String> getUnitTypes() {
+				UnitXCGroup group = getGroup(groupId);
+				UnitXCGroup perGroup = getGroup(perGroupId);
+				Iterator<String> groupIt = group.getTypeGenerator().getUnitTypes();
+				return new Iterator<String>() {
+					
+					String groupId2;
+					Iterator<String> perGroupIt;
+					
+					@Override
+					public boolean hasNext() {
+						if (perGroupIt!=null && perGroupIt.hasNext()) {
+							return true;
+						}
+						if (groupIt.hasNext()) {
+							groupId2 = groupIt.next();
+							perGroupIt = perGroup.getTypeGenerator().getUnitTypes();
+							return true;
+						}
+						return false;
+					}
+
+					@Override
+					public String next() {
+						return groupId2+PER_ID+perGroupIt.next();
+					}
+				};
+			}
+
+			@Override
+			public UnitXCType getUnitType(String id) {
+				if (!id.contains(PER_ID)) {
+					return null;
+				}
+				UnitXCGroup group = getGroup(groupId);
+				UnitXCGroup perGroup = getGroup(perGroupId);
+				Validate.notNull(group,"Could not find group: "+groupId);
+				Validate.notNull(perGroup,"Could not find group: "+perGroupId);
+				
+				String idGroup = id.substring(0,id.lastIndexOf(PER_ID)); // FIXME parse correctly see newton
+				String idGroupPer = id.substring(id.lastIndexOf(PER_ID)+1);
+				
+				UnitXCType unitType = group.getTypeGenerator().getUnitType(idGroup);
+				if (unitType == null) {
+					return null;
+				}
+				UnitXCType perUnitType = perGroup.getTypeGenerator().getUnitType(idGroupPer);
+				if (perUnitType == null) {
+					return null;
+				}
+				
+				// TODO: add name/name alias
+				UnitXCTypeBuilder<Object> typeBuilder = new UnitXCTypeBuilder<>(this,new UnitXCType(),(p,v) -> {});
+				typeBuilder
+					.setId(id)
+					.setName(unitType.getName()+PER_NAME+perUnitType.getName())
+					.addTypeFlags(unitType.getTypeFlags())
+					.addTypeFlags(perUnitType.getTypeFlags());
+				
+				typeBuilder.addToBaseConverterStep(new UnitXCConverterStepReference(unitType.getId(),true));
+				typeBuilder.addToBaseConverterStep(new UnitXCConverterStepReference(perUnitType.getId(),false));
+				typeBuilder.addFromBaseConverterStep(new UnitXCConverterStepReference(perUnitType.getId(),true));
+				typeBuilder.addFromBaseConverterStep(new UnitXCConverterStepReference(unitType.getId(),false));
+				typeBuilder.build();
+				typeBuilder.getValue().setUnitGroup(parent.getValue());
+				return typeBuilder.getValue();
+			}
+			
+		});
 	}
 	
 	@Override
@@ -60,11 +149,11 @@ public class UnitXCTypeCompoundPairBuilder extends AbstractUnitXCBuilder<UnitXCG
 	}
 	
 	@Override
-	protected void buildPreValue(Object v) {
+	protected void buildPreValue(UnitXCGroup value) {
 		
 		UnitXCGroup group = null;
 		UnitXCGroup perGroup = null;
-		for (UnitXCGroup unitGroup:builder.getConfig().getUnitroups()) {
+		for (UnitXCGroup unitGroup:getParent().getParent().getConfig().getUnitGroups()) {
 			if (unitGroup.getId().equals(groupId)) {
 				group = unitGroup;
 			}
@@ -77,46 +166,38 @@ public class UnitXCTypeCompoundPairBuilder extends AbstractUnitXCBuilder<UnitXCG
 		
 		getParent().getValue().getDerivedFrom().add(groupId);
 		getParent().getValue().getDerivedFrom().add(perGroupId);
+//		
+//		UnitXCGroupJump toGroupJump = new UnitXCGroupJump();
+//		toGroupJump.setId("to_"+group.getId());
+//		toGroupJump.setUnitGroup(group);
+//		toGroupJump.addJumpParameter(new UnitXCGroupJumpParameter("to_"+perGroup.getId(),"",perGroup.getId()));
+//		
+//		UnitXCGroupJump perGroupJump = new UnitXCGroupJump();
+//		perGroupJump.setId("to_"+group.getId());
+//		perGroupJump.setUnitGroup(group);
 		
-		List<UnitXCType> types = new ArrayList<>(builder.getConfig().getUnitTypes());
+		//getValue().getGroupJumps().add(toGroupJump);  // m/s -> m
+		//getValue().getGroupJumps().add(perGroupJump); // m/s -> h
 		
-		for (UnitXCType unitType:types) {
+		//group.getGroupJumps().add(toGroupJump);       // m -> m/s
-			if (!unitType.getUnitGroupId().equals(group.getId())) {
+		//perGroup.getGroupJumps().add(perGroupJump);   // s -> m/s
-				continue;
+		
-			}
+		// m/s -> m
-			for (UnitXCType perUnitType:types) {
+		getParent()
-				if (!perUnitType.getUnitGroupId().equals(perGroup.getId())) {
+			.createGroupJump(group.getId())
-					continue;
+				.addJumpParameter(value.getId()+"_"+perGroup.getId(),perGroup.getId())
-				}
+				.createToGroupConverterSteps()
-				
+					.multiply(new UnitXConverterStepValueNamedParameter(value.getId()+"_"+perGroup.getId()))
-				// TODO: add name/name alias
+				.build()
-				UnitXCTypeBuilder<UnitXCConfigBuilder> typeBuilder = builder.createUnitType()
+			.build();
-					.setId(unitType.getId()+PER_ID+perUnitType.getId())
+		
-					.setName(unitType.getName()+PER_NAME+perUnitType.getName())
+		// m -> m/s
-					.setTypeGroupId(getParent().getValue().getId())
+		getParent().getParent().extendUnitGroup(group.getId())
-					.addTypeFlags(unitType.getTypeFlags())
+			.createGroupJump(value.getId())
-					.addTypeFlags(perUnitType.getTypeFlags());
+				.addJumpParameter(value.getId()+"_"+perGroup.getId(),perGroup.getId())
-				
+				.createToGroupConverterSteps()
-				typeBuilder.addToBaseConverterSteps(cloneSteps(unitType.getToBaseConverterSteps(),true));
+					.divide(new UnitXConverterStepValueNamedParameter(value.getId()+"_"+perGroup.getId()))
-				typeBuilder.addToBaseConverterSteps(cloneSteps(perUnitType.getFromBaseConverterSteps(),false));
+				.build()
-				typeBuilder.addFromBaseConverterSteps(cloneSteps(perUnitType.getToBaseConverterSteps(),true));
+			.build();
-				typeBuilder.addFromBaseConverterSteps(cloneSteps(unitType.getFromBaseConverterSteps(),false));
-				typeBuilder.build();
-			}
-		}
-	}
-	
-	private List<UnitXConverterStep> cloneSteps(List<UnitXConverterStep> steps,boolean pairBase) {
-		List<UnitXConverterStep> result = new ArrayList<>();
-		for (UnitXConverterStep step:steps) {
-			UnitXConverterStep clone = step.clone();
-			if (pairBase) {
-				clone.addStepReason("CompoundPair base");
-			} else {
-				clone.addStepReason("CompoundPair reverse");
-			}
-			result.add(clone);
-		}
-		return result;
 	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXCTypeSIPrefixBuilder.java

@@ -28,8 +28,9 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 
-import net.forwardfire.unitxc.converter.step.UnitXCTypePowerOfTenConverterStep;
 import net.forwardfire.unitxc.model.UnitXCType;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepPowerOfTen;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
 
 /**
  * 
@@ -39,10 +40,10 @@ import net.forwardfire.unitxc.model.UnitXCType;
  */
 public class UnitXCTypeSIPrefixBuilder<P> extends AbstractUnitXCTypeBuilder<P,UnitXCTypeSIPrefixBuilder<P>> {
 	
-	private final UnitXCConfigBuilder builder;
+	private final UnitXCGroupBuilder builder;
 	private final List<UnitXCTypeSIPrefix> commonSIPrefixes;
 	
-	public UnitXCTypeSIPrefixBuilder(P parent, UnitXCConfigBuilder builder) {
+	public UnitXCTypeSIPrefixBuilder(P parent, UnitXCGroupBuilder builder) {
 		super(parent,new UnitXCType(), (p,v) -> {});
 		this.builder = builder;
 		this.commonSIPrefixes = new ArrayList<>();
@@ -60,7 +61,6 @@ public class UnitXCTypeSIPrefixBuilder<P> extends AbstractUnitXCTypeBuilder<P,Un
 			.setName(v.getName())
 			.setNamePlural(v.getNamePlural())
 			.addWebsiteLinks(v.getWebsiteLinks())
-			.setTypeGroupId(v.getUnitGroupId())
 			.addTypeFlags(v.getTypeFlags())
 			.addFromBaseConverterSteps(v.getFromBaseConverterSteps())
 			.addToBaseConverterSteps(v.getToBaseConverterSteps())
@@ -77,13 +77,12 @@ public class UnitXCTypeSIPrefixBuilder<P> extends AbstractUnitXCTypeBuilder<P,Un
 				.setId(sim.getPrefixId()+v.getId())
 				.setName(sim.getPrefixName()+v.getName())
 				.setNamePlural(sim.getPrefixName()+v.getNamePlural())
-				.setTypeGroupId(v.getUnitGroupId())
 				.addTypeFlags(typeFlags)
 				//.addWebsiteLinks(v.getWebsiteLinks())
-				.addToBaseConverterStep(new UnitXCTypePowerOfTenConverterStep(sim.getExponent(),false).buildReason("Move dot for SI"))
+				.addToBaseConverterStep(new UnitXCConverterStepPowerOfTen(sim.getExponent(),false,UnitXConverterStepContext.createStepValue(),UnitXConverterStepContext.createStepValue()).buildReason("Move dot for SI"))
 				.addToBaseConverterSteps(v.getToBaseConverterSteps())
 				.addFromBaseConverterSteps(v.getFromBaseConverterSteps())
-				.addFromBaseConverterStep(new UnitXCTypePowerOfTenConverterStep(sim.getExponent(),true).buildReason("Move dot for SI"))
+				.addFromBaseConverterStep(new UnitXCConverterStepPowerOfTen(sim.getExponent(),true,UnitXConverterStepContext.createStepValue(),UnitXConverterStepContext.createStepValue()).buildReason("Move dot for SI"))
 				.build();
 			
 			//for (String typeAlias:sim.getNameAliases()) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/config/builder/UnitXConverterStepBuilder.java

@@ -26,16 +26,19 @@ package net.forwardfire.unitxc.config.builder;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.function.BiConsumer;
+import java.util.function.Supplier;
 
+import org.apache.commons.lang3.Validate;
 import org.apache.commons.lang3.math.Fraction;
 
-import net.forwardfire.unitxc.converter.step.UnitXCTypeDevideConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepOperation;
-import net.forwardfire.unitxc.converter.step.UnitXCTypePowerOfTenConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepOperationOperator;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeMultiplyConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepPowerOfTen;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeMultiplyFractionConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeOffsetConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
-import net.forwardfire.unitxc.converter.step.UnitXCTypePowerConverterStep;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceDouble;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceDoubleFraction;
 
 /**
  * 
@@ -43,11 +46,13 @@ import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
  * @author Willem Cazander
  * @version 1.0 Oct 23, 2015
  */
-public class UnitXConverterStepBuilder<P extends AbstractUnitXCTypeBuilder<?,?>> extends AbstractUnitXCBuilder<P,List<UnitXConverterStep>,UnitXConverterStepBuilder<P>> {
+public class UnitXConverterStepBuilder<P extends AbstractUnitXCBuilder<?,?,?>> extends AbstractUnitXCBuilder<P,List<UnitXConverterStep>,UnitXConverterStepBuilder<P>> {
 	
-	public UnitXConverterStepBuilder(P parent, BiConsumer<P, List<UnitXConverterStep>> parentBuilder) {
+	private final Supplier<String> stepReason;
+	
+	public UnitXConverterStepBuilder(P parent, BiConsumer<P, List<UnitXConverterStep>> parentBuilder, Supplier<String> stepReason) {
 		super(parent, new ArrayList<>(), parentBuilder);
-		this.getParent().getValue().getId();
+		this.stepReason = Validate.notNull(stepReason);
 	}
 	
 	@Override
@@ -56,17 +61,19 @@ public class UnitXConverterStepBuilder<P extends AbstractUnitXCTypeBuilder<?,?>>
 	}
 	
 	private String createStepReason() {
-		return "convert "+getParent().getValue().getId();
+		return stepReason.get();
+		//return "convert "+getParent().getValue().getId();
 	}
 	
-	private UnitXConverterStepBuilder<P> offset(double offset,boolean offsetPositive,String stepReason) {
+	private UnitXCConverterStepOperation createStepOperation(UnitXCConverterStepOperationOperator op,UnitXConverterStepValueRead opB) {
-		return make(v -> v.add(new UnitXCTypeOffsetConverterStep(offset,offsetPositive).buildReason(stepReason)));
+		return new UnitXCConverterStepOperation(op,UnitXConverterStepContext.createStepValue(),opB,UnitXConverterStepContext.createStepValue());
 	}
+	
 	public UnitXConverterStepBuilder<P> offsetUp(double offset,String stepReason) {
-		return offset(offset,true,stepReason);
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.ADD,new UnitXConverterStepValueReferenceDouble(offset))));
 	}
 	public UnitXConverterStepBuilder<P> offsetDown(double offset,String stepReason) {
-		return offset(offset,false,stepReason);
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.SUBTRACT,new UnitXConverterStepValueReferenceDouble(offset))));
 	}
 	public UnitXConverterStepBuilder<P> offsetUp(double offset) {
 		return offsetUp(offset,createStepReason());
@@ -77,10 +84,10 @@ public class UnitXConverterStepBuilder<P extends AbstractUnitXCTypeBuilder<?,?>>
 	
 	
 	public UnitXConverterStepBuilder<P> multiply(Fraction fraction,String stepReason) {
-		return make(v -> v.add(new UnitXCTypeMultiplyFractionConverterStep(fraction.getNumerator(),fraction.getDenominator()).buildReason(stepReason)));
+		return multiply(fraction.getNumerator(),fraction.getDenominator(),stepReason);
 	}
 	public UnitXConverterStepBuilder<P> multiply(int numerator,int denominator,String stepReason) {
-		return make(v -> v.add(new UnitXCTypeMultiplyFractionConverterStep(numerator,denominator).buildReason(stepReason)));
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.MULTIPLY,new UnitXConverterStepValueReferenceDoubleFraction(numerator,denominator))));
 	}
 	public UnitXConverterStepBuilder<P> multiply(Fraction fraction) {
 		return multiply(fraction,createStepReason());
@@ -89,29 +96,41 @@ public class UnitXConverterStepBuilder<P extends AbstractUnitXCTypeBuilder<?,?>>
 		return multiply(numerator,denominator,createStepReason());
 	}
 	
+	public UnitXConverterStepBuilder<P> multiply(UnitXConverterStepValueRead factor,String stepReason) {
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.MULTIPLY,factor)));
+	}
 	public UnitXConverterStepBuilder<P> multiply(double factor,String stepReason) {
-		return make(v -> v.add(new UnitXCTypeMultiplyConverterStep(factor).buildReason(stepReason)));
+		return multiply(new UnitXConverterStepValueReferenceDouble(factor),stepReason);
+	}
+	public UnitXConverterStepBuilder<P> divide(UnitXConverterStepValueRead factor,String stepReason) {
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.DIVIDE,factor)));
 	}
 	public UnitXConverterStepBuilder<P> divide(double factor,String stepReason) {
-		return make(v -> v.add(new UnitXCTypeDevideConverterStep(factor).buildReason(stepReason)));
+		return divide(new UnitXConverterStepValueReferenceDouble(factor),stepReason);
 	}
 	public UnitXConverterStepBuilder<P> multiply(double factor) {
 		return multiply(factor,createStepReason());
 	}
-	public UnitXConverterStepBuilder<P> divide(double factor) {
+	public UnitXConverterStepBuilder<P> multiply(UnitXConverterStepValueRead factor) {
+		return multiply(factor,createStepReason());
+	}
+	public UnitXConverterStepBuilder<P> divide(UnitXConverterStepValueRead factor) {
 		return divide(factor,createStepReason());
 	}
+	public UnitXConverterStepBuilder<P> divide(double factor) {
+		return divide(factor,createStepReason());
+	}	
 	
-	public UnitXConverterStepBuilder<P> power(int exponent,String stepReason) {
+	public UnitXConverterStepBuilder<P> power(double exponent,String stepReason) {
-		return make(v -> v.add(new UnitXCTypePowerConverterStep(exponent).buildReason(stepReason)));
+		return make(v -> v.add(createStepOperation(UnitXCConverterStepOperationOperator.POWER,new UnitXConverterStepValueReferenceDouble(exponent))));
 	}
-	public UnitXConverterStepBuilder<P> power(int exponent) {
+	public UnitXConverterStepBuilder<P> power(double exponent) {
 		return power(exponent,createStepReason());
 	}
 	
 	
 	private UnitXConverterStepBuilder<P> powerOfTen(int exponent,boolean rev,String stepReason) {
-		return make(v -> v.add(new UnitXCTypePowerOfTenConverterStep(exponent,rev).buildReason(stepReason)));
+		return make(v -> v.add(new UnitXCConverterStepPowerOfTen(exponent,rev,UnitXConverterStepContext.createStepValue(),UnitXConverterStepContext.createStepValue()).buildReason(stepReason)));
 	}
 	public UnitXConverterStepBuilder<P> power10Up(UnitXCTypeSIPrefix exponent,String stepReason) {
 		return powerOfTen(exponent.getExponent(), true,stepReason);

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/converter/UnitXConverter.java

@@ -23,6 +23,13 @@
 
 package net.forwardfire.unitxc.converter;
 
+import java.math.BigDecimal;
+import java.util.Collections;
+import java.util.Map;
+
+import org.apache.commons.lang3.Validate;
+
+import net.forwardfire.unitxc.UnitXCManager;
 import net.forwardfire.unitxc.model.UnitXCType;
 import net.forwardfire.unitxc.model.UnitXConverterResult;
 
@@ -32,13 +39,45 @@ import net.forwardfire.unitxc.model.UnitXConverterResult;
  * @author Willem Cazander
  * @version 1.0 Oct 8, 2015
  */
-public interface UnitXConverter {
+public class UnitXConverter {
 	
-	double convert(double value,String fromTypeId,String toTypeId);
+	private final UnitXCManager unitManager;
+	private final UnitXConverterEngine convertEngine;
 	
-	double convert(double value,UnitXCType fromType,UnitXCType toType);
+	public UnitXConverter(UnitXCManager unitManager) {
+		this.unitManager = Validate.notNull(unitManager);
+		this.convertEngine = new UnitXConverterEngine(unitManager);
+	}
 	
-	UnitXConverterResult convertStepped(double value,String fromTypeId,String toTypeId);
+	private UnitXCType getUnitType(String id) {
+		return unitManager.getUnitType(id);
+	}
 	
-	UnitXConverterResult convertStepped(double value,UnitXCType fromType,UnitXCType toType);
+	public double convert(double value, String fromTypeId, String toTypeId) {
+		return convert(value, getUnitType(fromTypeId), getUnitType(toTypeId));
+	}
+	
+	public double convert(double value, UnitXCType fromType, UnitXCType toType) {
+		return convertStepped(value,fromType,toType).getResultValue();
+	}
+	
+	public UnitXConverterResult convertStepped(double value, String fromTypeId, String toTypeId) {
+		return convertStepped(value, getUnitType(fromTypeId), getUnitType(toTypeId));
+	}
+	
+	public UnitXConverterResult convertStepped(double value, String fromTypeId, String toTypeId,Map<String, UnitXConverterParameterValue> parameters) {
+		return convertStepped(value,  getUnitType(fromTypeId), getUnitType(toTypeId), parameters);
+	}
+	
+	public UnitXConverterResult convertStepped(double value, UnitXCType fromType, UnitXCType toType) {
+		return convertStepped(value, fromType, toType, Collections.emptyMap());
+	}
+	
+	public UnitXConverterResult convertStepped(double value, UnitXCType fromType, UnitXCType toType, Map<String,UnitXConverterParameterValue> parameters) {
+		return convertStepped(BigDecimal.valueOf(value), fromType, toType, parameters);
+	}
+
+	public UnitXConverterResult convertStepped(BigDecimal value, UnitXCType fromType, UnitXCType toType, Map<String,UnitXConverterParameterValue> parameters) {
+		return convertEngine.convertStepped(value, fromType, toType, parameters);
+	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/converter/UnitXConverterEngine.java

@@ -23,18 +23,30 @@
 
 package net.forwardfire.unitxc.converter;
 
+import java.math.BigDecimal;
+import java.math.MathContext;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
+import org.apache.commons.lang3.Validate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import net.forwardfire.unitxc.UnitXCManager;
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
 import net.forwardfire.unitxc.model.UnitXCGroup;
+import net.forwardfire.unitxc.model.UnitXCGroupJump;
+import net.forwardfire.unitxc.model.UnitXCGroupJumpParameter;
 import net.forwardfire.unitxc.model.UnitXCType;
 import net.forwardfire.unitxc.model.UnitXConverterResult;
 import net.forwardfire.unitxc.model.UnitXConverterResultStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepAutoRounding;
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReadWrite;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceDouble;
 
 /**
  * Runs requested convert steps and builds result models.
@@ -46,100 +58,149 @@ public final class UnitXConverterEngine {
 
 	private final static Logger LOG = LoggerFactory.getLogger(UnitXConverterEngine.class);
 	private final UnitXCManager manager;
+	private final UnitXConverterStep roundingStep;
 	
 	public UnitXConverterEngine(UnitXCManager manager) {
 		this.manager = manager;
+		this.roundingStep = new UnitXCConverterStepAutoRounding(UnitXConverterStepContext.createStepValue(),UnitXConverterStepContext.createStepValue());
 	}
 	
-	public UnitXConverterResult convertStepped(double value,UnitXCType fromType,UnitXCType toType) {
+	public UnitXConverterResult convertStepped(BigDecimal valueConvert2,UnitXCType fromType,UnitXCType toType, Map<String,UnitXConverterParameterValue> parameters) {
+		double valueConvert = valueConvert2.doubleValue();
 		long startTime = System.currentTimeMillis();
-		double startValue = value;
+		MathContext mathContext = MathContext.DECIMAL128;
-		List<UnitXConverterResultStep> resultSteps = new ArrayList<>();
+		UnitXConverterStepContextImpl ctx = new UnitXConverterStepContextImpl(mathContext,valueConvert);
 		
-		UnitXCGroup fromTypeGroup = manager.getUnitGroup(fromType.getUnitGroupId());
+		UnitXCGroup fromTypeGroup = fromType.getUnitGroup();
-		UnitXCGroup toTypeGroup = manager.getUnitGroup(toType.getUnitGroupId());
+		UnitXCGroup toTypeGroup = toType.getUnitGroup();
+		UnitXCGroupJump crossGroupJump = null; // List<> after multi level search
+		
+		if (!fromTypeGroup.getId().equals(toTypeGroup.getId())) {
+			for (UnitXCGroupJump groupJump:fromTypeGroup.getGroupJumps()) { // FIXME
+				if (toTypeGroup.getId().equals(groupJump.getUnitGroupId())) {
+					crossGroupJump = groupJump;
+					break;
+				}
+			}
+			if (crossGroupJump == null) {
+				throw new IllegalArgumentException("from and to groups are not equals: "+fromTypeGroup.getId()+" != "+toTypeGroup.getId());
+			}
+			for (UnitXCGroupJumpParameter jumpPara:crossGroupJump.getJumpParameters()) {
+				if (!parameters.containsKey(jumpPara.getId())) {
+					throw new IllegalArgumentException("Missing required convert parameter: "+jumpPara.getId());
+				}
+				UnitXConverterParameterValue convPara = parameters.get(jumpPara.getId());
+				if (convPara.getValueType() == null) {
+					throw new IllegalArgumentException("Convert parameter has not type: "+jumpPara.getId());
+				}
+				if (!jumpPara.getUnitGroupId().equals(convPara.getValueType().getUnitGroup().getId())) {
+					throw new IllegalArgumentException("Convert parameter is wrong group required: "+jumpPara.getUnitGroupId()+" got: "+convPara.getValueType().getUnitGroup().getId());
+				}
+				boolean paraToBase = convPara.getValueType().getUnitGroup().getBaseTypeId().equals(convPara.getValueType().getId());
+				double paraValue = convPara.getValue();
+				if (!paraToBase) {
+					System.out.println("--- cont para");;
+					UnitXConverterResult res = convertStepped(BigDecimal.valueOf(paraValue), convPara.getValueType(), manager.getUnitType(convPara.getValueType().getUnitGroup().getBaseTypeId()), parameters); // FIXME rm parameters ?
+					paraValue = res.getResultValue();
+					//ctx.resultSteps.addAll(res.getResultSteps());
+				}
+				ctx.namedParameter.put(jumpPara.getId(), new UnitXConverterStepValueReferenceDouble(paraValue));
+			}
+		}
 		
 		boolean fromTypeBase = fromTypeGroup.getBaseTypeId().equals(fromType.getId());
 		if (!fromTypeBase) {
-			value = runConverter(resultSteps,fromType, value, true);
+			ctx.runSteps(fromType.getToBaseConverterSteps());
-		}
-		boolean toTypeBase = toTypeGroup.getBaseTypeId().equals(toType.getId());
-		if (!toTypeBase) {
-			value = runConverter(resultSteps, toType, value, false);
 		}
 		
+		if (crossGroupJump != null) {
+			ctx.runSteps(crossGroupJump.getToGroupConverterSteps());
+		}
+		
+		boolean toTypeBase = toTypeGroup.getBaseTypeId().equals(toType.getId());
+		if (!toTypeBase) {
+			ctx.runSteps(toType.getFromBaseConverterSteps());
+		}
 		
 		long convertTime = System.currentTimeMillis()-startTime;
 		UnitXConverterResult result = new UnitXConverterResult();
-		result.setStartValue(startValue);
+//		result.setStartValue(ctx.getStartValue());
-		result.setStartValueType(fromType);
+		result.setStartTypeId(fromType.getId());
-		result.setResultValue(value);
+		result.setResultValue(ctx.getValue());
-		result.setResultValueType(toType);
+		result.setResultTypeId(toType.getId());
 		result.setConvertTime(convertTime);
-		result.setResultSteps(resultSteps);
+		result.setResultSteps(ctx.resultSteps);
 		return result;
 	}
 	
-	private double runConverter(List<UnitXConverterResultStep> resultSteps,UnitXCType type,double value,boolean toBase) {
+	class UnitXConverterStepContextImpl implements UnitXConverterStepContext {
-		double valueOld = value;
+		
-		List<UnitXConverterStep> steps = toBase?type.getToBaseConverterSteps():type.getFromBaseConverterSteps();
+		final MathContext mathContext;
-		for (UnitXConverterStep step:steps) {
+		List<UnitXConverterResultStep> resultSteps = new ArrayList<>();
-			valueOld = value;
+		Map<String,UnitXConverterStepValueReadWrite> namedVariables = new HashMap<>();
+		Map<String,UnitXConverterStepValueRead> namedParameter = new HashMap<>();
+		
+		public UnitXConverterStepContextImpl(MathContext mathContext, double startValue) {
+			this.mathContext = Validate.notNull(mathContext);
+			setNamedVariable(VALUE,       new UnitXConverterStepValueReferenceDouble(startValue));
+			setNamedVariable(VALUE_START, new UnitXConverterStepValueReferenceDouble(startValue));
+		}
+		
+		@Override
+		public void setNamedVariable(String name,UnitXConverterStepValueReadWrite variable) {
+			namedVariables.put(Validate.notBlank(name,"name is blank"),Validate.notNull(variable,"variable is null"));
+		}
+		
+		@Override
+		public UnitXConverterStepValueReadWrite getNamedVariable(String name) {
+			return Validate.notNull(namedVariables.get(Validate.notBlank(name,"name is blank")),"named variable not found: "+name);
+		}
+		
+		@Override
+		public UnitXConverterStepValueRead getNamedParameter(String name) {
+			return Validate.notNull(namedParameter.get(Validate.notBlank(name,"name is blank")),"named parameter not found: "+name);
+		}
+		
+		@Override
+		public void runSteps(List<UnitXConverterStep> steps) {
+			for (UnitXConverterStep step:steps) {
+				runStep(step);
+				if (roundingStep != null) {
+					runStep(roundingStep);
+				}
+			}
+		}
+		
+		private void runStep(UnitXConverterStep step) {
 			
 			long startTime = System.currentTimeMillis();
-			value = step.convert(value);
+			double valueOld = getValue();
+			step.runStep(this);
 			long convertTime = System.currentTimeMillis()-startTime;
+			
+			System.out.println("runStep: "+step+" res: "+step.getStepReasons());
+			
 			UnitXConverterResultStep resultStep = new UnitXConverterResultStep();
-			resultStep.setName(step.getName()+(toBase?"-toBase":"-fromBase")+" = "+step.getMathExpression());
 			resultStep.setStartValue(valueOld);
-			resultStep.setResultValue(value);
+			resultStep.setResultValue(getValue());
 			resultStep.setConvertTime(convertTime);
+			resultStep.setConvertStep(step);
 			resultSteps.add(resultStep);
-			
+//			previousValue = valueOld;
-			value = runRounding(resultSteps,value,valueOld);
-			
 		}
-		return value;
-	}
-	
-	// TODO: redo this
-	private double runRounding(List<UnitXConverterResultStep> resultSteps,double value,double valueOrg) {
-		long startTime = System.currentTimeMillis();
-		String valueStr = Double.toString(value);
-		String valueOrgStr = Double.toString(valueOrg);
-		int valueDotIndex = valueStr.indexOf(".");
-		int valueOrgDotIndex = valueOrgStr.indexOf(".");
-		int valueDotSize = valueStr.length() - valueDotIndex;
-		int valueOrgDotSize = valueOrgStr.length() - valueOrgDotIndex;
 		
-		if (valueDotSize<10) {
+		private Double getValue() {
-			return value;
+			return (Double)(getNamedVariable(VALUE).valueRead(this));
 		}
-		if (valueDotSize<=valueOrgDotSize) {
+		
-			return value;
+		@Override
+		public MathContext getMathContext() {
+			return mathContext;
 		}
-		int valueEIndex = valueStr.indexOf("E");
+
-		String valueShortStr = null;
+		@Override
-		if (valueEIndex>0) {
+		public UnitXCManager getUnitManager() {
-			int sub =  valueOrgStr.length();
+			return manager;
-			if (sub > valueEIndex) {
-				sub = valueEIndex;
-			}
-			valueShortStr = valueStr.substring(0, sub)+ valueStr.substring(valueEIndex);
-		} else {
-			valueShortStr = valueStr.substring(0, valueOrgStr.length());
 		}
-		Double result = new Double(valueShortStr);
-		long roundTime = System.currentTimeMillis()-startTime;
-		
-		UnitXConverterResultStep resultStep = new UnitXConverterResultStep();
-		resultStep.setName("rounding");
-		resultStep.setStartValue(value);
-		resultStep.setResultValue(result);
-		resultStep.setConvertTime(roundTime);
-		
-		resultSteps.add(resultStep);
-		
-		return result.doubleValue();
 	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/converter/UnitXConverterParameterValue.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.converter;
+
+import org.apache.commons.lang3.Validate;
+
+import net.forwardfire.unitxc.model.UnitXCType;
+
+/**
+ * Holds the parameter value and type.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Mar 18, 2016
+ */
+public final class UnitXConverterParameterValue {
+	
+	private double value;
+	private UnitXCType valueType;
+	
+	public UnitXConverterParameterValue() {
+	}
+	
+	public UnitXConverterParameterValue(double value,UnitXCType valueType) {
+		setValue(value);
+		setValueType(Validate.notNull(valueType));
+	}
+	
+	/**
+	 * @return the value
+	 */
+	public double getValue() {
+		return value;
+	}
+	
+	/**
+	 * @param value the value to set
+	 */
+	public void setValue(double value) {
+		this.value = value;
+	}
+	
+	/**
+	 * @return the valueType
+	 */
+	public UnitXCType getValueType() {
+		return valueType;
+	}
+	
+	/**
+	 * @param valueType the valueType to set
+	 */
+	public void setValueType(UnitXCType valueType) {
+		this.valueType = valueType;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/ModelJAXBInfoSet.java

@@ -28,11 +28,9 @@ package net.forwardfire.unitxc.model;
  * @author Willem Cazander
  * @version 1.0 Jan 16, 2015
  */
-public class ModelXMLInfoSet {
+public class ModelJAXBInfoSet {
 	
-	protected static final String XML_ENCODING = "UTF-8";
+	protected ModelJAXBInfoSet() {
-	
-	protected ModelXMLInfoSet() {
 	}
 	
 	protected static class Meta {
@@ -42,19 +40,36 @@ public class ModelXMLInfoSet {
 	}
 	
 	public static class Element {
+		protected static final String UNIT_CONFIG = "unitConfig";
+		protected static final String UNIT_GROUP = "unitGroup";
+		protected static final String UNIT_TYPE = "unitType";
 		protected static final String DESCRIPTION = "description";
 		protected static final String CONVERTER_RESULT = "converterResult";
 		protected static final String CONVERTER_RESULT_STEP = "converterResultStep";
-		protected static final String START_VALUE_TYPE = "startValueType";
-		protected static final String RESULT_VALUE_TYPE = "resultValueType";
 		protected static final String DERIVED_FROM = "derivedFrom";
 		protected static final String TYPE_FLAG = "typeFlag";
 		protected static final String TYPE_FLAGS = "typeFlags";
 		protected static final String WEBSITE_LINK = "websiteLink";
 		protected static final String WEBSITE_LINKS = "websiteLinks";
+		protected static final String GROUP_JUMP = "groupJump";
+		protected static final String GROUP_JUMP_PARAMETER = "groupJumpParameter";
 		public static final String STEP_REASON = "stepReason";
 		public static final String STEP_REASONS = "stepReasons";
 		
+		public static final String OPERATION = "operation";
+		public static final String CONDITION = "condition";
+		public static final String REFERENCE = "reference";
+		public static final String POWER_10  = "power10";
+		public static final String ROUNDING  = "rounding";
+		
+		public static final String NAMED_VARIABLE  = "namedVariable";
+		public static final String NAMED_PARAMETER  = "namedParameter";
+		
+		public static final String VALUE_DOUBLE  = "valueDouble";
+		public static final String VALUE_DOUBLE_FRACTION  = "valueDoubleFraction";
+		public static final String VALUE_INTEGER  = "valueInteger";
+		public static final String VALUE_STRING  = "valueString";
+		
 		protected Element() {
 		}
 	}
@@ -63,17 +78,20 @@ public class ModelXMLInfoSet {
 		protected static final String ID = "id";
 		public static final String NAME = "name";
 		protected static final String NAME_PLURAL = "namePlural";
+		protected static final String UNIT_GROUP_ID = "unitGroupId";
 		
 		protected static final String START_VALUE = "startValue";
 		protected static final String RESULT_VALUE = "resultValue";
 		protected static final String CONVERT_TIME = "convertTime";
+		protected static final String START_TYPE_ID = "startTypeId";
+		protected static final String RESULT_TYPE_ID = "resultTypeId";
 		
 		protected static final String BASE_TYPE_ID = "baseTypeId";
 		protected static final String GROUP_LEVEL = "groupLevel";
 		
 		protected static final String ALIAS_OF_TYPE = "aliasOfType";
-		protected static final String UNIT_GROUP_ID = "unitGroupId";
 		
+		protected static final String ROUNDING = "rounding";
 		
 		protected Attribute() {
 		}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/ModelJAXBMarshaller.java

@@ -22,22 +22,24 @@
  */
 package net.forwardfire.unitxc.model;
 
-import java.io.InputStream;
-import java.io.OutputStream;
-
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
-import javax.xml.bind.Marshaller;
+import javax.xml.stream.XMLInputFactory;
-import javax.xml.bind.Unmarshaller;
+import javax.xml.stream.XMLOutputFactory;
 
-import org.apache.commons.lang3.Validate;
+import org.apache.commons.lang3.ArrayUtils;
 
-import net.forwardfire.unitxc.converter.step.UnitXCTypeDevideConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepAutoRounding;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeMultiplyConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepCondition;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeMultiplyFractionConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepOperation;
-import net.forwardfire.unitxc.converter.step.UnitXCTypeOffsetConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepPowerOfTen;
-import net.forwardfire.unitxc.converter.step.UnitXCTypePowerConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXCConverterStepReference;
-import net.forwardfire.unitxc.converter.step.UnitXCTypePowerOfTenConverterStep;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueNamedParameter;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueNamedVariable;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceDouble;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceDoubleFraction;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceInteger;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReferenceString;
 
 /**
  * Jaxb marshaller of the query sets.
@@ -45,59 +47,71 @@ import net.forwardfire.unitxc.converter.step.UnitXCTypePowerOfTenConverterStep;
  * @author Willem Cazander
  * @version 1.0 Jan 14, 2015
  */
-public class ModelXMLMarshaller {
+public class ModelJAXBMarshaller {
 
-	private final JAXBContext jaxbContext;
+	private final ModelJAXBTypedMarshaller<UnitXCConfig> configModelMarshaller;
+	private final ModelJAXBTypedMarshaller<UnitXCGroup> groupModelMarshaller;
+	private final ModelJAXBTypedMarshaller<UnitXCType> typeModelMarshaller;
+	private final ModelJAXBTypedMarshaller<UnitXConverterResult> resultModelMarshaller;
 	
-	/**
+	private final static Class<?>[] JAXB_TYPES = new Class<?>[] {
-	 * Creates a query set xml marshaller.
+		UnitXCConfig.class,
-	 * @throws JAXBException	When context could not be build.
+		UnitXCGroup.class,
-	 */
+		UnitXConverterResult.class,
-	public ModelXMLMarshaller() throws JAXBException {
+		UnitXCConverterStepReference.class,
-		this(JAXBContext.newInstance(UnitXConverterResult.class,
+		UnitXCConverterStepOperation.class,
-				UnitXCTypeDevideConverterStep.class,
+		UnitXCConverterStepCondition.class,
-				UnitXCTypeMultiplyConverterStep.class,
+		UnitXCConverterStepPowerOfTen.class,
-				UnitXCTypeMultiplyFractionConverterStep.class,
+		UnitXCConverterStepAutoRounding.class,
-				UnitXCTypeOffsetConverterStep.class,
+		UnitXConverterStepValueNamedParameter.class,
-				UnitXCTypePowerConverterStep.class,
+		UnitXConverterStepValueNamedVariable.class,
-				UnitXCTypePowerOfTenConverterStep.class
+		UnitXConverterStepValueReferenceDouble.class,
-			));
+		UnitXConverterStepValueReferenceDoubleFraction.class,
-	}
+		UnitXConverterStepValueReferenceInteger.class,
+		UnitXConverterStepValueReferenceString.class,
+		};
 	
-	/**
-	 * Creates a query set xml marshaller. 
-	 * @param querySetContext	The jaxb query set context.
-	 */
-	public ModelXMLMarshaller(JAXBContext querySetContext) {
-		this.jaxbContext = Validate.notNull(querySetContext,"querySetContext is null.");
-	}
-	
-	/**
-	 * Marshal the UnitXConverterResult to xml.
-	 * @param querySet	The UnitXConverterResult to marshal.
-	 * @param output	The xml output of the query set.
-	 * @throws JAXBException	When error.
-	 */
-	public void marshal(UnitXConverterResult converterResult, OutputStream output) throws JAXBException {
-		Validate.notNull(converterResult,"converterResult is null.");
-		Validate.notNull(output,"OutputStream is null.");
 		
-		Marshaller marshaller = jaxbContext.createMarshaller();
+	public ModelJAXBMarshaller() throws JAXBException {
-		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+		this(new Class<?>[]{});
-		marshaller.setProperty(Marshaller.JAXB_ENCODING, ModelXMLInfoSet.XML_ENCODING);
-		marshaller.marshal(converterResult, output);
 	}
 	
-	/**
+	public ModelJAXBMarshaller(Class<?>[] extraTypes) throws JAXBException {
-	 * Unmarshals xml to UnitXConverterResult objects.
+		this(JAXBContext.newInstance(ArrayUtils.addAll(getJAXBTypes(), extraTypes)));
-	 * @param input	The xml input stream.
+	}
-	 * @return	The UnitXConverterResult.
+	
-	 * @throws JAXBException	When error.
+	public ModelJAXBMarshaller(JAXBContext jaxbContext) throws JAXBException {
-	 */
+		this(XMLInputFactory.newInstance(),XMLOutputFactory.newInstance(),jaxbContext);
-	public UnitXConverterResult unmarshal(InputStream input) throws JAXBException {
+	}
-		Validate.notNull(input,"InputStream is null.");
+	
-		
+	public ModelJAXBMarshaller(XMLInputFactory xmlInputFactory,XMLOutputFactory xmlOutputFactory, JAXBContext jaxbContext) {
-		Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
+		this.configModelMarshaller = buildTypedMarshaller(UnitXCConfig.class, xmlInputFactory, xmlOutputFactory, jaxbContext);
-		return (UnitXConverterResult) unmarshaller.unmarshal(input);
+		this.groupModelMarshaller = buildTypedMarshaller(UnitXCGroup.class, xmlInputFactory, xmlOutputFactory, jaxbContext);
+		this.typeModelMarshaller = buildTypedMarshaller(UnitXCType.class, xmlInputFactory, xmlOutputFactory, jaxbContext);
+		this.resultModelMarshaller = buildTypedMarshaller(UnitXConverterResult.class, xmlInputFactory, xmlOutputFactory, jaxbContext);
+	}
+	
+	public static Class<?>[] getJAXBTypes() {
+		return JAXB_TYPES;
+	}
+	
+	public ModelJAXBTypedMarshaller<UnitXCConfig> getUnitXCConfig() {
+		return configModelMarshaller;
+	}
+	
+	public ModelJAXBTypedMarshaller<UnitXCGroup> getUnitXCGroup() {
+		return groupModelMarshaller;
+	}
+	
+	public ModelJAXBTypedMarshaller<UnitXCType> getUnitXCType() {
+		return typeModelMarshaller;
+	}
+	
+	public ModelJAXBTypedMarshaller<UnitXConverterResult> getUnitXConverterResult() {
+		return resultModelMarshaller;
+	}
+	
+	private static <T> ModelJAXBTypedMarshaller<T> buildTypedMarshaller(Class<T> typeClass,XMLInputFactory xmlInputFactory,XMLOutputFactory xmlOutputFactory, JAXBContext jaxbContext) {
+		return new ModelJAXBTypedMarshaller<T>(typeClass,xmlInputFactory,xmlOutputFactory,jaxbContext);
 	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/ModelJAXBObjectWrap.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model;
+
+import javax.xml.bind.annotation.XmlAnyElement;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 3, 2016
+ */
+public class ModelJAXBObjectWrap<T> {
+
+	private T value;
+	
+	public ModelJAXBObjectWrap() {
+	}
+	
+	public ModelJAXBObjectWrap(T value) {
+		setValue(value);
+	}
+	
+	/**
+	 * @return the value
+	 */
+	@XmlAnyElement
+	public T getValue() {
+		return value;
+	}
+	
+	/**
+	 * @param value the value to set
+	 */
+	public void setValue(T value) {
+		this.value = value;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/ModelJAXBObjectWrapAdapter.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.forwardfire.unitxc.model;
+
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+
+/**
+ * Adds extra wrap tag to any object.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 3, 2016
+ */
+public class ModelJAXBObjectWrapAdapter extends XmlAdapter<ModelJAXBObjectWrap<?>, Object> {
+
+	@Override
+	public Object unmarshal(ModelJAXBObjectWrap<?> v) throws Exception {
+		return v.getValue();
+	}
+	
+	@Override
+	public ModelJAXBObjectWrap<?> marshal(Object v) throws Exception {
+		return new ModelJAXBObjectWrap<Object>(v);
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/ModelJAXBTypedMarshaller.java

@@ -0,0 +1,152 @@
+package net.forwardfire.unitxc.model;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.Validate;
+
+public class ModelJAXBTypedMarshaller<T> {
+
+	private final Class<T> typeClass;
+	private final XMLInputFactory xmlInputFactory;
+	private final XMLOutputFactory xmlOutputFactory;
+	private final JAXBContext jaxbContext;
+
+	public ModelJAXBTypedMarshaller(Class<T> typeClass, XMLInputFactory xmlInputFactory,
+			XMLOutputFactory xmlOutputFactory, JAXBContext jaxbContext) {
+		this.typeClass = Validate.notNull(typeClass);
+		this.xmlInputFactory = Validate.notNull(xmlInputFactory);
+		this.xmlOutputFactory = Validate.notNull(xmlOutputFactory);
+		this.jaxbContext = Validate.notNull(jaxbContext);
+	}
+
+	protected Unmarshaller createUnmarshaller() throws JAXBException {
+		return jaxbContext.createUnmarshaller();
+	}
+
+	protected Marshaller createMarshaller(String encoding) throws JAXBException {
+		Validate.notNull(encoding, "encoding is null.");
+		Marshaller marshaller = jaxbContext.createMarshaller();
+		//marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); // done by stax proxy now 
+		marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding);
+		return marshaller;
+	}
+
+	public void marshal(T jaxbElement, XMLStreamWriter writer) throws JAXBException {
+		marshal(jaxbElement, writer, StandardCharsets.UTF_8.name());
+	}
+
+	public void marshal(T jaxbElement, XMLStreamWriter writer, String encoding) throws JAXBException {
+		Validate.notNull(jaxbElement, "jaxbElement is null.");
+		Validate.notNull(writer, "reader is null.");
+		Validate.notNull(encoding, "encoding is null.");
+		createMarshaller(encoding).marshal(jaxbElement, writer);
+	}
+
+	public void marshal(T jaxbElement, OutputStream output) throws JAXBException, XMLStreamException {
+		marshal(jaxbElement, output, StandardCharsets.UTF_8.name());
+	}
+
+	public void marshal(T jaxbElement, OutputStream output, String encoding) throws JAXBException, XMLStreamException {
+		Validate.notNull(jaxbElement, "jaxbElement is null.");
+		Validate.notNull(output, "ouput is null.");
+		Validate.notNull(encoding, "encoding is null.");
+		marshal(jaxbElement, IndentingXMLStreamWriterProxy.wrap(xmlOutputFactory.createXMLStreamWriter(output, encoding)), encoding);
+	}
+
+	public T unmarshal(XMLStreamReader reader) throws JAXBException {
+		Validate.notNull(reader, "reader is null.");
+		return createUnmarshaller().unmarshal(reader, typeClass).getValue();
+	}
+
+	public T unmarshal(InputStream input, String encoding) throws JAXBException, XMLStreamException {
+		Validate.notNull(input, "input is null.");
+		Validate.notNull(encoding, "encoding is null.");
+		return unmarshal(xmlInputFactory.createXMLStreamReader(input, encoding));
+	}
+
+	public T unmarshal(InputStream input) throws JAXBException, XMLStreamException {
+		return unmarshal(input, StandardCharsets.UTF_8.name());
+	}
+
+	static class IndentingXMLStreamWriterProxy implements InvocationHandler {
+
+		private final XMLStreamWriter target;
+		private int depth = 0;
+		private boolean firstLine = true;
+		private final Map<Integer, Boolean> hasChildElement = new HashMap<>();
+
+		public IndentingXMLStreamWriterProxy(XMLStreamWriter target) {
+			this.target = Validate.notNull(target);
+		}
+		
+		public static XMLStreamWriter wrap(XMLStreamWriter writer) {
+			ClassLoader cl = Thread.currentThread().getContextClassLoader();
+			if (cl == null) {
+				IndentingXMLStreamWriterProxy.class.getClassLoader();
+			}
+			return (XMLStreamWriter) Proxy.newProxyInstance(cl, new Class<?>[]{XMLStreamWriter.class}, new IndentingXMLStreamWriterProxy(writer));
+		}
+
+		public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+			String m = method.getName();
+			// Needs to be BEFORE the actual event, so that for instance the
+			// sequence writeStartElem, writeAttr, writeStartElem, writeEndElem,writeEndElem
+			// is correctly handled
+			if ("writeStartElement".equals(m)) {
+				// update state of parent node
+				if (depth > 0) {
+					hasChildElement.put(depth - 1, true);
+				}
+				// reset state of current node
+				hasChildElement.put(depth, false);
+				// indent for current depth
+				if (!firstLine) {
+					writeLineWrap();
+				}
+				depth++;
+			} else if ("writeEndElement".equals(m)) {
+				depth--;
+				if (hasChildElement.get(depth) == true) {
+					writeLineWrap();
+				}
+			} else if ("writeEmptyElement".equals(m)) {
+				// update state of parent node
+				if (depth > 0) {
+					hasChildElement.put(depth - 1, true);
+				}
+				writeLineWrap();
+			} else if ("writeComment".equals(m)) {
+				writeLineWrap();
+			} else if ("writeEndDocument".equals(m)) {
+				target.writeCharacters(StringUtils.LF);
+			}
+			method.invoke(target, args);
+			firstLine = false;
+			return null;
+		}
+		
+		private void writeLineWrap() throws XMLStreamException {
+			target.writeCharacters(StringUtils.LF);
+			// indent for current depth
+			target.writeCharacters(StringUtils.repeat(StringUtils.SPACE, depth));
+		}
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCConfig.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import org.apache.commons.lang3.Validate;
+
+/**
+ * The unit config. 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 17, 2015
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.UNIT_CONFIG)
+public class UnitXCConfig {
+	
+	private UnitXCRounding rounding;
+	private final List<UnitXCGroup> unitGroups;
+	
+	public UnitXCConfig() {
+		unitGroups = new ArrayList<>();
+	}
+	
+	/**
+	 * @return the rounding
+	 */
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ROUNDING)
+	public UnitXCRounding getRounding() {
+		return rounding;
+	}
+	
+	/**
+	 * @param rounding the rounding to set
+	 */
+	public void setRounding(UnitXCRounding rounding) {
+		this.rounding = rounding;
+	}
+	
+	/**
+	 * @return the unit groups.
+	 */
+	@XmlElement(name=ModelJAXBInfoSet.Element.UNIT_GROUP)
+	public List<UnitXCGroup> getUnitGroups() {
+		return unitGroups;
+	}
+	
+	/**
+	 * @param unitGroups the groups to set.
+	 */
+	public void setUnitGroups(List<UnitXCGroup> groups) {
+		this.unitGroups.clear();
+		groups.forEach(group -> addUnitGroup(group));
+	}
+	
+	public void addUnitGroup(UnitXCGroup group) {
+		Validate.notNull(group);
+		group.validate();
+		unitGroups.add(group);
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCGroup.java

@@ -28,8 +28,12 @@ import java.util.List;
 
 import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlTransient;
 
 import org.apache.commons.lang3.Validate;
+import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
 
 /**
  * The unit group. 
@@ -37,17 +41,24 @@ import org.apache.commons.lang3.Validate;
  * @author Willem Cazander
  * @version 1.0 Oct 10, 2015
  */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.UNIT_GROUP)
 public class UnitXCGroup {
 	
 	private String id;
 	private String name;
 	private String description;
 	private String baseTypeId;
+	private long totalUnitTypes = 0L;
 	private UnitXCGroupLevel groupLevel;
+	private UnitXCTypeGenerator typeGenerator;
 	private final List<String> derivedFrom;
+	private final List<UnitXCType> unitTypes;
+	private final List<UnitXCGroupJump> groupJumps;
 	
 	public UnitXCGroup() {
 		derivedFrom = new ArrayList<>();
+		unitTypes = new ArrayList<>();
+		groupJumps = new ArrayList<>();
 	}
 	
 	public UnitXCGroup(String id,String name,String description,String baseTypeId) {
@@ -70,7 +81,7 @@ public class UnitXCGroup {
 	/**
 	 * @return the id
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.ID)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ID)
 	public String getId() {
 		return id;
 	}
@@ -84,7 +95,7 @@ public class UnitXCGroup {
 	/**
 	 * @return the name
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.NAME)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.NAME)
 	public String getName() {
 		return name;
 	}
@@ -99,7 +110,7 @@ public class UnitXCGroup {
 	/**
 	 * @return the description
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.DESCRIPTION)
+	@XmlElement(name=ModelJAXBInfoSet.Element.DESCRIPTION)
 	public String getDescription() {
 		return description;
 	}
@@ -114,7 +125,7 @@ public class UnitXCGroup {
 	/**
 	 * @return the baseTypeId
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.BASE_TYPE_ID)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.BASE_TYPE_ID)
 	public String getBaseTypeId() {
 		return baseTypeId;
 	}
@@ -129,7 +140,7 @@ public class UnitXCGroup {
 	/**
 	 * @return the groupLevel
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.GROUP_LEVEL)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.GROUP_LEVEL)
 	public UnitXCGroupLevel getGroupLevel() {
 		return groupLevel;
 	}
@@ -144,7 +155,8 @@ public class UnitXCGroup {
 	/**
 	 * @return the derivedFrom
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.DERIVED_FROM)
+	@XmlElement(name=ModelJAXBInfoSet.Element.DERIVED_FROM)
+	@XmlElementWrapper
 	public List<String> getDerivedFrom() {
 		return derivedFrom;
 	}
@@ -156,4 +168,79 @@ public class UnitXCGroup {
 		this.derivedFrom.clear();
 		this.derivedFrom.addAll(derivedFrom);
 	}
+	
+	/**
+	 * @return the unit types.
+	 */
+	@XmlElement(name=ModelJAXBInfoSet.Element.UNIT_TYPE)
+	@XmlElementWrapper
+	public List<UnitXCType> getUnitTypes() {
+		return unitTypes;
+	}
+	
+	/**
+	 * @param unitTypes the types to set.
+	 */
+	public void setUnitTypes(List<UnitXCType> types) {
+		this.unitTypes.clear();
+		types.forEach(type -> addUnitType(type));
+	}
+	
+	public void addUnitType(UnitXCType type) {
+		Validate.notNull(type);
+		type.setUnitGroup(this);
+		type.validate();
+		unitTypes.add(type);
+	}
+	
+	/**
+	 * @return the groupJumps
+	 */
+	@XmlElement(name=ModelJAXBInfoSet.Element.GROUP_JUMP)
+	@XmlElementWrapper
+	public List<UnitXCGroupJump> getGroupJumps() {
+		return groupJumps;
+	}
+	
+	/**
+	 * @param groupJumps the groupJumps to set
+	 */
+	public void setGroupJumps(List<UnitXCGroupJump> groupJumps) {
+		this.groupJumps.clear();
+		this.groupJumps.addAll(groupJumps);
+	}
+
+	/**
+	 * @return the typeGenerator
+	 */
+	@XmlTransient
+	public UnitXCTypeGenerator getTypeGenerator() {
+		return typeGenerator;
+	}
+
+	/**
+	 * @param typeGenerator the typeGenerator to set
+	 */
+	public void setTypeGenerator(UnitXCTypeGenerator typeGenerator) {
+		this.typeGenerator = typeGenerator;
+	}
+	
+	/**
+	 * @return the totalUnitTypes
+	 */
+	public long getTotalUnitTypes() {
+		return totalUnitTypes;
+	}
+	
+	/**
+	 * @param totalUnitTypes the totalUnitTypes to set
+	 */
+	public void setTotalUnitTypes(long totalUnitTypes) {
+		this.totalUnitTypes = totalUnitTypes;
+	}
+
+	@Override
+	public String toString() {
+		return ReflectionToStringBuilder.toString(this);
+	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCGroupJump.java

@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAnyElement;
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlElementWrapper;
+
+import org.apache.commons.lang3.Validate;
+
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
+
+/**
+ * The unit group jump.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+public class UnitXCGroupJump {
+	
+	private String id;
+	private String unitGroupId;
+	private final List<UnitXConverterStep> toGroupConverterSteps;
+	private final List<UnitXCGroupJumpParameter> jumpParameters;
+	
+	public UnitXCGroupJump() {
+		toGroupConverterSteps = new ArrayList<>();
+		jumpParameters = new ArrayList<>();
+	}
+	
+	public UnitXCGroupJump validate() {
+		Validate.notBlank(id,"The id is blank");
+		Validate.notBlank(unitGroupId,"The unitGroupId is blank of: "+id);
+		return this;
+	}
+	
+	/**
+	 * @return the id
+	 */
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ID)
+	public String getId() {
+		return id;
+	}
+	/**
+	 * @param id the id to set
+	 */
+	public void setId(String id) {
+		this.id = id;
+	}
+	
+	/**
+	 * @return the toGroupId
+	 */
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.UNIT_GROUP_ID)
+	public String getUnitGroupId() {
+		return unitGroupId;
+	}
+	
+	/**
+	 * @param unitGroupId the unitGroupId to set
+	 */
+	public void setUnitGroupId(String unitGroupId) {
+		this.unitGroupId = unitGroupId;
+	}
+	
+	/**
+	 * @return the toGroupConverterSteps
+	 */
+	@XmlElementWrapper
+	@XmlAnyElement
+	public List<UnitXConverterStep> getToGroupConverterSteps() {
+		return toGroupConverterSteps;
+	}
+	
+	/**
+	 * @param toGroupConverterSteps the toGroupConverterSteps to set
+	 */
+	public void setToBaseConverterSteps(List<UnitXConverterStep> toGroupConverterSteps) {
+		this.toGroupConverterSteps.clear();
+		this.toGroupConverterSteps.addAll(toGroupConverterSteps);
+	}
+	
+	/**
+	 * @return the jumpParameters
+	 */
+	@XmlElementWrapper
+	@XmlElement(name=ModelJAXBInfoSet.Element.GROUP_JUMP_PARAMETER)
+	public List<UnitXCGroupJumpParameter> getJumpParameters() {
+		return jumpParameters;
+	}
+	
+	/**
+	 * @param jumpParameters the jumpParameters to set
+	 */
+	public void setJumpParameters(List<UnitXCGroupJumpParameter> jumpParameters) {
+		this.jumpParameters.clear();
+		this.jumpParameters.addAll(jumpParameters);
+	}
+	
+	public void addJumpParameter(UnitXCGroupJumpParameter jumpParameter) {
+		this.jumpParameters.add(Validate.notNull(jumpParameter));
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCGroupJumpParameter.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model;
+
+import javax.xml.bind.annotation.XmlAttribute;
+
+import org.apache.commons.lang3.Validate;
+
+
+/**
+ * The unit group jump.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+public class UnitXCGroupJumpParameter {
+	
+	private String id;
+	private String unitGroupId;
+	
+	public UnitXCGroupJumpParameter() {
+	}
+	
+	public UnitXCGroupJumpParameter(String id,String unitGroupId) {
+		setId(id);
+		setUnitGroupId(unitGroupId);
+	}
+	
+	public UnitXCGroupJumpParameter validate() {
+		Validate.notBlank(id,"The id is blank");
+		Validate.notBlank(unitGroupId,"The unitGroup is blank of: "+id);
+		return this;
+	}
+	
+	/**
+	 * @return the id
+	 */
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ID)
+	public String getId() {
+		return id;
+	}
+	/**
+	 * @param id the id to set
+	 */
+	public void setId(String id) {
+		this.id = id;
+	}
+	
+	/**
+	 * @return the unitGroupId
+	 */
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.UNIT_GROUP_ID)
+	public String getUnitGroupId() {
+		return unitGroupId;
+	}
+	
+	/**
+	 * @param unitGroupId the unitGroupId to set
+	 */
+	public void setUnitGroupId(String unitGroupId) {
+		this.unitGroupId = unitGroupId;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCRounding.java

@@ -0,0 +1,14 @@
+package net.forwardfire.unitxc.model;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Mar 23, 2016
+ */
+public enum UnitXCRounding {
+
+	OFF,
+	PRE_STEP;
+	/* PER_CONVERT */
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCType.java

@@ -33,8 +33,9 @@ import javax.xml.bind.annotation.XmlElementWrapper;
 import javax.xml.bind.annotation.XmlTransient;
 
 import org.apache.commons.lang3.Validate;
+import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
 
-import net.forwardfire.unitxc.converter.step.UnitXConverterStep;
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
 
 /**
  * The unit type.
@@ -48,7 +49,7 @@ public class UnitXCType {
 	private String name;
 	private String namePlural;
 	private String aliasOfType;
-	private String unitGroupId;
+	private UnitXCGroup unitGroup;
 	private final List<UnitXConverterStep> toBaseConverterSteps;
 	private final List<UnitXConverterStep> fromBaseConverterSteps;
 	private final List<String> typeFlags;
@@ -65,14 +66,14 @@ public class UnitXCType {
 		Validate.notBlank(id,"The id is blank");
 		Validate.notBlank(name,"The name is blank of: "+id);
 		Validate.notBlank(namePlural,"The namePlural is blank of: "+id);
-		Validate.notBlank(unitGroupId,"The unitGroupId is blank of: "+id);
+		Validate.notNull(unitGroup,"The unitGroup is null of: "+id);
 		return this;
 	}
 	
 	/**
 	 * @return the id
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.ID)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ID)
 	public String getId() {
 		return id;
 	}
@@ -86,7 +87,7 @@ public class UnitXCType {
 	/**
 	 * @return the name
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.NAME)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.NAME)
 	public String getName() {
 		return name;
 	}
@@ -101,7 +102,7 @@ public class UnitXCType {
 	/**
 	 * @return the namePlural
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.NAME_PLURAL)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.NAME_PLURAL)
 	public String getNamePlural() {
 		return namePlural;
 	}
@@ -116,7 +117,7 @@ public class UnitXCType {
 	/**
 	 * @return the aliasOfType
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.ALIAS_OF_TYPE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.ALIAS_OF_TYPE)
 	public String getAliasOfType() {
 		return aliasOfType;
 	}
@@ -129,18 +130,18 @@ public class UnitXCType {
 	}
 	
 	/**
-	 * @return the unitGroupId
+	 * @return the unitGroup
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.UNIT_GROUP_ID)
+	@XmlTransient
-	public String getUnitGroupId() {
+	public UnitXCGroup getUnitGroup() {
-		return unitGroupId;
+		return unitGroup;
 	}
 	
 	/**
-	 * @param unitGroupId the unitGroupId to set
+	 * @param unitGroup the unitGroup to set
 	 */
-	public void setUnitGroupId(String unitGroupId) {
+	public void setUnitGroup(UnitXCGroup unitGroup) {
-		this.unitGroupId = unitGroupId;
+		this.unitGroup = unitGroup;
 	}
 	
 	/**
@@ -180,8 +181,8 @@ public class UnitXCType {
 	/**
 	 * @return the typeFlags
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.TYPE_FLAG)
+	@XmlElement(name=ModelJAXBInfoSet.Element.TYPE_FLAG)
-	@XmlElementWrapper(name=ModelXMLInfoSet.Element.TYPE_FLAGS)
+	@XmlElementWrapper(name=ModelJAXBInfoSet.Element.TYPE_FLAGS)
 	public List<String> getTypeFlags() {
 		return typeFlags;
 	}
@@ -197,8 +198,8 @@ public class UnitXCType {
 	/**
 	 * @return the websiteLinks
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.WEBSITE_LINK)
+	@XmlElement(name=ModelJAXBInfoSet.Element.WEBSITE_LINK)
-	@XmlElementWrapper(name=ModelXMLInfoSet.Element.WEBSITE_LINKS)
+	@XmlElementWrapper(name=ModelJAXBInfoSet.Element.WEBSITE_LINKS)
 	public List<String> getWebsiteLinks() {
 		return websiteLinks;
 	}
@@ -210,4 +211,9 @@ public class UnitXCType {
 		this.websiteLinks.clear();
 		this.websiteLinks.addAll(websiteLinks);
 	}
+	
+	@Override
+	public String toString() {
+		return ReflectionToStringBuilder.toString(this);
+	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXCTypeGenerator.java

@@ -0,0 +1,12 @@
+package net.forwardfire.unitxc.model;
+
+import java.util.Iterator;
+
+public interface UnitXCTypeGenerator {
+
+	long size();
+	
+	Iterator<String> getUnitTypes();
+	
+	UnitXCType getUnitType(String id);
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXConverterResult.java

@@ -35,20 +35,20 @@ import javax.xml.bind.annotation.XmlRootElement;
  * @author Willem Cazander
  * @version 1.0 Oct 17, 2015
  */
-@XmlRootElement(name=ModelXMLInfoSet.Element.CONVERTER_RESULT)
+@XmlRootElement(name=ModelJAXBInfoSet.Element.CONVERTER_RESULT)
 public class UnitXConverterResult {
 	
 	private Double startValue;
 	private List<UnitXConverterResultStep> resultSteps;
 	private Double resultValue;
 	private Long convertTime;
-	private UnitXCType startValueType;
+	private String startTypeId;
-	private UnitXCType resultValueType;
+	private String resultTypeId;
 	
 	/**
 	 * @return the startValue
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.START_VALUE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.START_VALUE)
 	public Double getStartValue() {
 		return startValue;
 	}
@@ -63,7 +63,7 @@ public class UnitXConverterResult {
 	/**
 	 * @return the resultSteps
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.CONVERTER_RESULT_STEP)
+	@XmlElement(name=ModelJAXBInfoSet.Element.CONVERTER_RESULT_STEP)
 	public List<UnitXConverterResultStep> getResultSteps() {
 		return resultSteps;
 	}
@@ -78,7 +78,7 @@ public class UnitXConverterResult {
 	/**
 	 * @return the resultValue
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.RESULT_VALUE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.RESULT_VALUE)
 	public Double getResultValue() {
 		return resultValue;
 	}
@@ -93,7 +93,7 @@ public class UnitXConverterResult {
 	/**
 	 * @return the convertTime
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.CONVERT_TIME)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.CONVERT_TIME)
 	public Long getConvertTime() {
 		return convertTime;
 	}
@@ -106,32 +106,32 @@ public class UnitXConverterResult {
 	}
 	
 	/**
-	 * @return the startValueType
+	 * @return the startTypeId
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.START_VALUE_TYPE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.START_TYPE_ID)
-	public UnitXCType getStartValueType() {
+	public String getStartTypeId() {
-		return startValueType;
+		return startTypeId;
 	}
 	
 	/**
-	 * @param startValueType the startValueType to set
+	 * @param startTypeId the startTypeId to set
 	 */
-	public void setStartValueType(UnitXCType startValueType) {
+	public void setStartTypeId(String startTypeId) {
-		this.startValueType = startValueType;
+		this.startTypeId = startTypeId;
 	}
 	
 	/**
-	 * @return the resultValueType
+	 * @return the resultTypeId
 	 */
-	@XmlElement(name=ModelXMLInfoSet.Element.RESULT_VALUE_TYPE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.RESULT_TYPE_ID)
-	public UnitXCType getResultValueType() {
+	public String getResultTypeId() {
-		return resultValueType;
+		return resultTypeId;
 	}
 	
 	/**
-	 * @param resultValueType the resultValueType to set
+	 * @param resultTypeId the resultTypeId to set
 	 */
-	public void setResultValueType(UnitXCType resultValueType) {
+	public void setResultTypeId(String resultTypeId) {
-		this.resultValueType = resultValueType;
+		this.resultTypeId = resultTypeId;
 	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/UnitXConverterResultStep.java

@@ -23,8 +23,11 @@
 
 package net.forwardfire.unitxc.model;
 
+import javax.xml.bind.annotation.XmlAnyElement;
 import javax.xml.bind.annotation.XmlAttribute;
 
+import net.forwardfire.unitxc.model.step.UnitXConverterStep;
+
 /**
  * 
  * 
@@ -33,30 +36,15 @@ import javax.xml.bind.annotation.XmlAttribute;
  */
 public class UnitXConverterResultStep {
 	
-	private String name;
 	private Double startValue;
 	private Double resultValue;
 	private Long convertTime;
-	
+	private UnitXConverterStep convertStep;
-	/**
-	 * @return the name
-	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.NAME)
-	public String getName() {
-		return name;
-	}
-	
-	/**
-	 * @param name the name to set
-	 */
-	public void setName(String name) {
-		this.name = name;
-	}
 	
 	/**
 	 * @return the startValue
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.START_VALUE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.START_VALUE)
 	public Double getStartValue() {
 		return startValue;
 	}
@@ -71,7 +59,7 @@ public class UnitXConverterResultStep {
 	/**
 	 * @return the resultValue
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.RESULT_VALUE)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.RESULT_VALUE)
 	public Double getResultValue() {
 		return resultValue;
 	}
@@ -86,7 +74,7 @@ public class UnitXConverterResultStep {
 	/**
 	 * @return the convertTime
 	 */
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.CONVERT_TIME)
+	@XmlAttribute(name=ModelJAXBInfoSet.Attribute.CONVERT_TIME)
 	public Long getConvertTime() {
 		return convertTime;
 	}
@@ -97,4 +85,19 @@ public class UnitXConverterResultStep {
 	public void setConvertTime(Long convertTime) {
 		this.convertTime = convertTime;
 	}
+	
+	/**
+	 * @return the convertStep
+	 */
+	@XmlAnyElement
+	public UnitXConverterStep getConvertStep() {
+		return convertStep;
+	}
+	
+	/**
+	 * @param convertStep the convertStep to set
+	 */
+	public void setConvertStep(UnitXConverterStep convertStep) {
+		this.convertStep = convertStep;
+	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/AbstractUnitXConverterStep.java

@@ -21,18 +21,17 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.converter.step;
+package net.forwardfire.unitxc.model.step;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlElement;
 import javax.xml.bind.annotation.XmlElementWrapper;
 
 import org.apache.commons.lang3.Validate;
 
-import net.forwardfire.unitxc.model.ModelXMLInfoSet;
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
 
 /**
  * 
@@ -42,12 +41,10 @@ import net.forwardfire.unitxc.model.ModelXMLInfoSet;
  */
 public abstract class AbstractUnitXConverterStep implements UnitXConverterStep {
 
-	private String name;
 	private final List<String> stepReasons;
 	
-	protected AbstractUnitXConverterStep(String name) {
+	protected AbstractUnitXConverterStep() {
 		this.stepReasons = new ArrayList<>();
-		this.setName(name);
 	}
 	
 	public AbstractUnitXConverterStep buildReason(String reason) {
@@ -55,19 +52,8 @@ public abstract class AbstractUnitXConverterStep implements UnitXConverterStep {
 		return this;
 	}
 	
-	@Override
+	@XmlElement(name=ModelJAXBInfoSet.Element.STEP_REASON)
-	@XmlAttribute(name=ModelXMLInfoSet.Attribute.NAME)
+	@XmlElementWrapper(name=ModelJAXBInfoSet.Element.STEP_REASONS)
-	public final String getName() {
-		return name;
-	}
-	
-	public void setName(String name) {
-		this.name = Validate.notBlank(name);
-	}
-	
-	@Override
-	@XmlElement(name=ModelXMLInfoSet.Element.STEP_REASON)
-	@XmlElementWrapper(name=ModelXMLInfoSet.Element.STEP_REASONS)
 	public final List<String> getStepReasons() {
 		return stepReasons;
 	}
@@ -77,28 +63,7 @@ public abstract class AbstractUnitXConverterStep implements UnitXConverterStep {
 		this.stepReasons.addAll(stepReasons);
 	}
 	
-	@Override
 	public final void addStepReason(String stepReason) {
 		stepReasons.add(Validate.notBlank(stepReason));
 	}
-	
-	abstract protected String toMath();
-	
-	@Override
-	public final String getMathExpression() {
-		return toMath();
-	}
-	
-	public void setMathExpression(String notUsed) {
-	}
-	
-	@Override
-	public UnitXConverterStep clone() {
-		AbstractUnitXConverterStep clone = createClone();
-		clone.setName(getName());
-		clone.setStepReasons(getStepReasons());
-		return clone;
-	}
-	
-	abstract protected AbstractUnitXConverterStep createClone();
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepAutoRounding.java

@@ -0,0 +1,91 @@
+package net.forwardfire.unitxc.model.step;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.ModelJAXBObjectWrapAdapter;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueNamedVariable;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReadWrite;
+
+@XmlRootElement(name=ModelJAXBInfoSet.Element.ROUNDING)
+public class UnitXCConverterStepAutoRounding extends AbstractUnitXConverterStep {
+	
+	private UnitXConverterStepValueRead operand;
+	private UnitXConverterStepValueReadWrite result;
+	
+	public UnitXCConverterStepAutoRounding() {
+	}
+	
+	public UnitXCConverterStepAutoRounding(UnitXConverterStepValueRead operand,UnitXConverterStepValueReadWrite result) {
+		setOperand(operand);
+		setResult(result);
+	}
+	
+	private double round(double value,double prevValue) {
+		String valueStr = Double.toString(value);
+		String valueOrgStr = Double.toString(prevValue);
+		int valueDotIndex = valueStr.indexOf(".");
+		int valueOrgDotIndex = valueOrgStr.indexOf(".");
+		int valueDotSize = valueStr.length() - valueDotIndex;
+		int valueOrgDotSize = valueOrgStr.length() - valueOrgDotIndex;
+		
+		if (valueDotSize<10) {
+			return value;
+		}
+		if (valueDotSize<=valueOrgDotSize) {
+			return value;
+		}
+		int valueEIndex = valueStr.indexOf("E");
+		String valueShortStr = null;
+		if (valueEIndex>0) {
+			int sub =  valueOrgStr.length();
+			if (sub > valueEIndex) {
+				sub = valueEIndex;
+			}
+			valueShortStr = valueStr.substring(0, sub)+ valueStr.substring(valueEIndex);
+		} else {
+			valueShortStr = valueStr.substring(0, valueOrgStr.length());
+		}
+		Double result = new Double(valueShortStr);
+		return result.doubleValue();
+	}
+	
+	@Override
+	public void runStep(UnitXConverterStepContext ctx) {
+		// FIXME: rm obj and casting
+		UnitXConverterStepValueReadWrite startValue = new UnitXConverterStepValueNamedVariable(Double.class,UnitXConverterStepContext.VALUE_START);
+		getResult().valueWrite(ctx, round((Double)getOperand().valueRead(ctx),(Double)startValue.valueRead(ctx)));
+	}
+	
+	/**
+	 * @return the operand
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperand() {
+		return operand;
+	}
+	
+	/**
+	 * @param operand the operand to set
+	 */
+	public void setOperand(UnitXConverterStepValueRead operand) {
+		this.operand = operand;
+	}
+	
+	/**
+	 * @return the result
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueReadWrite getResult() {
+		return result;
+	}
+	
+	/**
+	 * @param result the result to set
+	 */
+	public void setResult(UnitXConverterStepValueReadWrite result) {
+		this.result = result;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepCondition.java

@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAnyElement;
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.ModelJAXBObjectWrapAdapter;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 17, 2015
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.CONDITION)
+public class UnitXCConverterStepCondition extends AbstractUnitXConverterStep {
+
+	private UnitXCConverterStepConditionEquality equality;
+	private UnitXConverterStepValueRead operandA;
+	private UnitXConverterStepValueRead operandB;
+	private final List<UnitXConverterStep> conditionalSteps;
+	
+	public UnitXCConverterStepCondition() {
+		this.conditionalSteps = new ArrayList<>();
+	}
+	
+	@Override
+	public void runStep(UnitXConverterStepContext ctx) {
+		if (equality.execute(operandA.valueRead(ctx),operandB.valueRead(ctx))) {
+			ctx.runSteps(conditionalSteps);
+		}
+	}
+	
+	/**
+	 * @return the equality
+	 */
+	@XmlAttribute
+	public UnitXCConverterStepConditionEquality getEquality() {
+		return equality;
+	}
+	
+	/**
+	 * @param equality the equality to set
+	 */
+	public void setEquality(UnitXCConverterStepConditionEquality equality) {
+		this.equality = equality;
+	}
+	
+	/**
+	 * @return the operandA
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperandA() {
+		return operandA;
+	}
+	
+	/**
+	 * @param operandA the operandA to set
+	 */
+	public void setOperandA(UnitXConverterStepValueRead operandA) {
+		this.operandA = operandA;
+	}
+	
+	/**
+	 * @return the operandB
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperandB() {
+		return operandB;
+	}
+	
+	/**
+	 * @param operandB the operandB to set
+	 */
+	public void setOperandB(UnitXConverterStepValueRead operandB) {
+		this.operandB = operandB;
+	}
+	
+	/**
+	 * @return the conditionalSteps
+	 */
+	@XmlElementWrapper
+	@XmlAnyElement
+	public List<UnitXConverterStep> getConditionalSteps() {
+		return conditionalSteps;
+	}
+	
+	/**
+	 * @param conditionalSteps the conditionalSteps to set
+	 */
+	public void setConditionalSteps(List<UnitXConverterStep> conditionalSteps) {
+		this.conditionalSteps.clear();
+		this.conditionalSteps.addAll(conditionalSteps);
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepConditionEquality.java

@@ -0,0 +1,37 @@
+package net.forwardfire.unitxc.model.step;
+
+import java.util.function.BiFunction;
+
+public enum UnitXCConverterStepConditionEquality  {
+	
+	EQUALS             ((l,r) -> l.compareTo(r) == 0,   (l,r) -> l.compareTo(r) == 0,   (l,r) -> l.compareTo(r) == 0),
+	NOT_EQUALS         ((l,r) -> l.compareTo(r) != 0,   (l,r) -> l.compareTo(r) != 0,   (l,r) -> l.compareTo(r) != 0),
+	GREATER_THEN       ((l,r) -> l.compareTo(r)  > 0,   (l,r) -> l.compareTo(r)  > 0,   (l,r) -> l.compareTo(r)  > 0),
+	LESSER_THEN        ((l,r) -> l.compareTo(r)  < 0,   (l,r) -> l.compareTo(r)  < 0,   (l,r) -> l.compareTo(r)  < 0),
+	GREATER_OR_EQUALS  ((l,r) -> l.compareTo(r) >= 0,   (l,r) -> l.compareTo(r) >= 0,   (l,r) -> l.compareTo(r) >= 0),
+	LESSER_OR_EQUALS   ((l,r) -> l.compareTo(r) <= 0,   (l,r) -> l.compareTo(r) <= 0,   (l,r) -> l.compareTo(r) <= 0),
+	;
+	
+	private final BiFunction<Double,Double,Boolean> opertionDouble;
+	private final BiFunction<Integer,Integer,Boolean> opertionInteger;
+	private final BiFunction<String,String,Boolean> opertionString;
+	
+	private UnitXCConverterStepConditionEquality(BiFunction<Double,Double,Boolean> opertionDouble,BiFunction<Integer,Integer,Boolean> opertionInteger,BiFunction<String,String,Boolean> opertionString) {
+		this.opertionDouble = opertionDouble;
+		this.opertionInteger = opertionInteger;
+		this.opertionString = opertionString;
+	}
+	
+	public boolean execute(Object left, Object right) {
+		if (Double.class.equals(left.getClass())) {
+			return opertionDouble.apply(Double.class.cast(left), Double.class.cast(right));
+		}
+		if (Integer.class.equals(left.getClass())) {
+			return opertionInteger.apply(Integer.class.cast(left), Integer.class.cast(right));
+		}
+		if (String.class.equals(left.getClass())) {
+			return opertionString.apply(String.class.cast(left), String.class.cast(right));
+		}
+		throw new IllegalArgumentException("Unknown typeClass: "+left.getClass());
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepOperation.java

@@ -21,9 +21,16 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.converter.step;
+package net.forwardfire.unitxc.model.step;
 
+import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.ModelJAXBObjectWrapAdapter;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReadWrite;
 
 /**
  * 
@@ -31,47 +38,86 @@ import javax.xml.bind.annotation.XmlRootElement;
  * @author Willem Cazander
  * @version 1.0 Oct 17, 2015
  */
-@XmlRootElement
+@XmlRootElement(name=ModelJAXBInfoSet.Element.OPERATION)
-public class UnitXCTypeMultiplyConverterStep extends AbstractUnitXConverterStep {
+public class UnitXCConverterStepOperation extends AbstractUnitXConverterStep {
 
-	private final static String STEP_NAME = "Multiply";
+	private UnitXCConverterStepOperationOperator operator;
-	private double factor;
+	private UnitXConverterStepValueRead operandA;
+	private UnitXConverterStepValueRead operandB;
+	private UnitXConverterStepValueReadWrite result;
 	
-	public UnitXCTypeMultiplyConverterStep() {
+	public UnitXCConverterStepOperation() {
-		super(STEP_NAME);
 	}
 	
-	public UnitXCTypeMultiplyConverterStep(double factor) {
+	public UnitXCConverterStepOperation(UnitXCConverterStepOperationOperator operator,UnitXConverterStepValueRead operandA,UnitXConverterStepValueRead operandB,UnitXConverterStepValueReadWrite result) {
-		this();
+		setOperator(operator);
-		setFactor(factor);
+		setOperandA(operandA);
+		setOperandB(operandB);
+		setResult(result);
 	}
 	
 	@Override
-	protected AbstractUnitXConverterStep createClone() {
+	public void runStep(UnitXConverterStepContext ctx) {
-		return new UnitXCTypeMultiplyConverterStep(getFactor());
+		result.valueWrite(ctx, operator.execute(operandA.valueRead(ctx),operandB.valueRead(ctx)));
-	}
-	
-	@Override
-	public double convert(double value) {
-		return value*factor;
-	}
-	
-	@Override
-	protected String toMath() {
-		return "*"+factor;
 	}
 	
 	/**
-	 * @return the factor
+	 * @return the operator
 	 */
-	public double getFactor() {
+	@XmlAttribute
-		return factor;
+	public UnitXCConverterStepOperationOperator getOperator() {
+		return operator;
 	}
 	
 	/**
-	 * @param factor the factor to set
+	 * @param operator the operator to set
 	 */
-	public void setFactor(double factor) {
+	public void setOperator(UnitXCConverterStepOperationOperator operator) {
-		this.factor = factor;
+		this.operator = operator;
+	}
+	
+	/**
+	 * @return the operandA
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperandA() {
+		return operandA;
+	}
+	
+	/**
+	 * @param operandA the operandA to set
+	 */
+	public void setOperandA(UnitXConverterStepValueRead operandA) {
+		this.operandA = operandA;
+	}
+	
+	/**
+	 * @return the operandB
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperandB() {
+		return operandB;
+	}
+	
+	/**
+	 * @param operandB the operandB to set
+	 */
+	public void setOperandB(UnitXConverterStepValueRead operandB) {
+		this.operandB = operandB;
+	}
+	
+	/**
+	 * @return the result
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueReadWrite getResult() {
+		return result;
+	}
+	
+	/**
+	 * @param result the result to set
+	 */
+	public void setResult(UnitXConverterStepValueReadWrite result) {
+		this.result = result;
 	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepOperationOperator.java

@@ -0,0 +1,57 @@
+package net.forwardfire.unitxc.model.step;
+
+import java.math.BigDecimal;
+import java.math.MathContext;
+import java.util.function.BinaryOperator;
+
+import org.apache.commons.lang3.StringUtils;
+
+public enum UnitXCConverterStepOperationOperator {
+	
+	ADD       ((l,r) -> l+r,      (l,r) -> l+r,      (l,r) -> l+r),
+	SUBTRACT  ((l,r) -> l-r,      (l,r) -> l-r,      (l,r) -> l.replaceAll(l, StringUtils.EMPTY)),
+	MULTIPLY  ((l,r) -> l*r,      (l,r) -> l*r,      null),
+	DIVIDE    ((l,r) -> l/r,      (l,r) -> l/r,      null),
+	POWER     ((l,r) -> p(l,r),   (l,r) -> p(l,r),   null),
+	AND       (null,              (l,r) -> l & r,    null),
+	OR        (null,              (l,r) -> l | r,    null), 
+	;
+
+	private final BinaryOperator<Double> opertionDouble;
+	private final BinaryOperator<Integer> opertionInteger;
+	private final BinaryOperator<String> opertionString;
+	
+	private UnitXCConverterStepOperationOperator(BinaryOperator<Double> opertionDouble,BinaryOperator<Integer> opertionInteger,BinaryOperator<String> opertionString) {
+		this.opertionDouble = opertionDouble;
+		this.opertionInteger = opertionInteger;
+		this.opertionString = opertionString;
+	}
+	
+	private static BigDecimal p(BigDecimal l,BigDecimal r) {
+		return l.pow(r.intValueExact(), MathContext.UNLIMITED);
+	}
+	
+	private static double p(double l,double r) {
+		return Math.pow(l, r);
+	}
+	
+	private static int p(int l,int r) {
+		for (int i=0;i<r;i++) {
+			l = l * l;
+		}
+		return l;
+	}
+	
+	public Object execute(Object left, Object right) {
+		if (Double.class.equals(left.getClass())) {
+			return opertionDouble.apply(Double.class.cast(left), Double.class.cast(right));
+		}
+		if (Integer.class.equals(left.getClass())) {
+			return opertionInteger.apply(Integer.class.cast(left), Integer.class.cast(right));
+		}
+		if (String.class.equals(left.getClass())) {
+			return opertionString.apply(String.class.cast(left), String.class.cast(right));
+		}
+		throw new IllegalArgumentException("Unknown typeClass: "+left.getClass());
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepPowerOfTen.java

@@ -21,9 +21,16 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.converter.step;
+package net.forwardfire.unitxc.model.step;
 
+import javax.xml.bind.annotation.XmlAttribute;
 import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.ModelJAXBObjectWrapAdapter;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReadWrite;
 
 /**
  * 
@@ -31,29 +38,30 @@ import javax.xml.bind.annotation.XmlRootElement;
  * @author Willem Cazander
  * @version 1.0 Oct 17, 2015
  */
-@XmlRootElement
+@XmlRootElement(name=ModelJAXBInfoSet.Element.POWER_10)
-public class UnitXCTypePowerOfTenConverterStep extends AbstractUnitXConverterStep {
+public class UnitXCConverterStepPowerOfTen extends AbstractUnitXConverterStep {
 
-	private final static String STEP_NAME = "power(10)";
+	private UnitXConverterStepValueRead operand;
+	private UnitXConverterStepValueReadWrite result;
 	private int exponent;
 	private boolean exponentReverse;
 	
-	public UnitXCTypePowerOfTenConverterStep() {
+	public UnitXCConverterStepPowerOfTen() {
-		super(STEP_NAME);
 	}
 	
-	public UnitXCTypePowerOfTenConverterStep(int exponent,boolean exponentReverse) {
+	public UnitXCConverterStepPowerOfTen(int exponent,boolean exponentReverse,UnitXConverterStepValueRead operand,UnitXConverterStepValueReadWrite result) {
 		this();
 		setExponent(exponent);
 		setExponentReverse(exponentReverse);
+		setOperand(operand);
+		setResult(result);
 	}
 	
 	@Override
-	protected AbstractUnitXConverterStep createClone() {
+	public void runStep(UnitXConverterStepContext ctx) {
-		return new UnitXCTypePowerOfTenConverterStep(getExponent(),isExponentReverse());
+		result.valueWrite(ctx, convert((Double)operand.valueRead(ctx)));
 	}
 	
-	@Override
 	public double convert(double value) {
 		int exponentShift = exponent<0?0-exponent:exponent;
 		for (int i=0;i<exponentShift;i++) {
@@ -62,12 +70,6 @@ public class UnitXCTypePowerOfTenConverterStep extends AbstractUnitXConverterSte
 		return value;
 	}
 	
-	
-	@Override
-	protected String toMath() {
-		return "*10^"+exponent;
-	}
-	
 	private double shiftDotStatic(double value,boolean up) {
 		String valueStr = ""+value;
 		int dotIdx = valueStr.indexOf('.');
@@ -83,28 +85,30 @@ public class UnitXCTypePowerOfTenConverterStep extends AbstractUnitXConverterSte
 		Double result = new Double(buf.toString());
 		return result.doubleValue();
 	}
-
+	
 	/**
 	 * @return the exponent
 	 */
+	@XmlAttribute
 	public int getExponent() {
 		return exponent;
 	}
-
+	
 	/**
 	 * @param exponent the exponent to set
 	 */
 	public void setExponent(int exponent) {
 		this.exponent = exponent;
 	}
-
+	
 	/**
 	 * @return the exponentReverse
 	 */
+	@XmlAttribute
 	public boolean isExponentReverse() {
 		return exponentReverse;
 	}
-
+	
 	/**
 	 * @param exponentReverse the exponentReverse to set
 	 */
@@ -112,5 +116,33 @@ public class UnitXCTypePowerOfTenConverterStep extends AbstractUnitXConverterSte
 		this.exponentReverse = exponentReverse;
 	}
 	
+	/**
+	 * @return the operand
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueRead getOperand() {
+		return operand;
+	}
 	
+	/**
+	 * @param operand the operand to set
+	 */
+	public void setOperand(UnitXConverterStepValueRead operand) {
+		this.operand = operand;
+	}
+	
+	/**
+	 * @return the result
+	 */
+	@XmlJavaTypeAdapter(value=ModelJAXBObjectWrapAdapter.class)
+	public UnitXConverterStepValueReadWrite getResult() {
+		return result;
+	}
+	
+	/**
+	 * @param result the result to set
+	 */
+	public void setResult(UnitXConverterStepValueReadWrite result) {
+		this.result = result;
+	}
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXCConverterStepReference.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step;
+
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.UnitXCType;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 7, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.REFERENCE)
+public class UnitXCConverterStepReference extends AbstractUnitXConverterStep {
+
+	private String unitTypeId;
+	private Boolean toBaseSteps;
+	
+	public UnitXCConverterStepReference() {
+	}
+	
+	public UnitXCConverterStepReference(String unitTypeId,Boolean toBaseSteps) {
+		setUnitTypeId(unitTypeId);
+		setToBaseSteps(toBaseSteps);
+	}
+	
+	@Override
+	public void runStep(UnitXConverterStepContext ctx) {
+		UnitXCType type = ctx.getUnitManager().getUnitType(getUnitTypeId());
+		List<UnitXConverterStep> steps = Boolean.TRUE.equals(toBaseSteps)?type.getToBaseConverterSteps():type.getFromBaseConverterSteps();
+		ctx.runSteps(steps);
+	}
+	
+	/**
+	 * @return the unitTypeId
+	 */
+	@XmlAttribute
+	public String getUnitTypeId() {
+		return unitTypeId;
+	}
+	
+	/**
+	 * @param unitTypeId the unitTypeId to set
+	 */
+	public void setUnitTypeId(String unitTypeId) {
+		this.unitTypeId = unitTypeId;
+	}
+	
+	/**
+	 * @return the toBaseSteps
+	 */
+	@XmlAttribute
+	public Boolean getToBaseSteps() {
+		return toBaseSteps;
+	}
+	
+	/**
+	 * @param toBaseSteps the toBaseSteps to set
+	 */
+	public void setToBaseSteps(Boolean toBaseSteps) {
+		this.toBaseSteps = toBaseSteps;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXConverterStep.java

@@ -21,7 +21,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.converter.step;
+package net.forwardfire.unitxc.model.step;
 
 import java.util.List;
 
@@ -31,17 +31,11 @@ import java.util.List;
  * @author Willem Cazander
  * @version 1.0 Oct 10, 2015
  */
-public interface UnitXConverterStep extends Cloneable {
+public interface UnitXConverterStep {
 
-	String getName();
+	void runStep(UnitXConverterStepContext ctx);
 	
 	List<String> getStepReasons();
 	
 	void addStepReason(String stepReason); // TODO: rm : fix builder
-	
-	String getMathExpression();
-	
-	double convert(double value);
-	
-	UnitXConverterStep clone();
 }

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/UnitXConverterStepContext.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step;
+
+import java.math.MathContext;
+import java.util.List;
+
+import net.forwardfire.unitxc.UnitXCManager;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueNamedVariable;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueRead;
+import net.forwardfire.unitxc.model.step.value.UnitXConverterStepValueReadWrite;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 10, 2015
+ */
+public interface UnitXConverterStepContext {
+	
+	static final String VALUE = "value";
+	static final String VALUE_START = "valueStart";
+	
+	MathContext getMathContext();
+	
+	void setNamedVariable(String name,UnitXConverterStepValueReadWrite variable);
+	
+	UnitXConverterStepValueReadWrite getNamedVariable(String name);
+	
+	UnitXConverterStepValueRead getNamedParameter(String name);
+	
+	void runSteps(List<UnitXConverterStep> steps);
+	
+	UnitXCManager getUnitManager();
+	
+	public static UnitXConverterStepValueReadWrite createStepValue() {
+		return new UnitXConverterStepValueNamedVariable(Double.class,VALUE);
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/package-info.java

@@ -0,0 +1,7 @@
+
+
+/**
+ * @author willemc
+ *
+ */
+package net.forwardfire.unitxc.model.step;

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueNamedParameter.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.NAMED_PARAMETER)
+public class UnitXConverterStepValueNamedParameter implements UnitXConverterStepValueRead {
+
+	private String parameterName;
+	
+	public UnitXConverterStepValueNamedParameter() {
+	}
+	
+	public UnitXConverterStepValueNamedParameter(String parameterName) {
+		setParameterName(parameterName);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		return ctx.getNamedParameter(parameterName).valueRead(ctx);
+	}
+	
+	@Override
+	public UnitXConverterStepValueRead clone() {
+		UnitXConverterStepValueNamedParameter clone = new UnitXConverterStepValueNamedParameter();
+		clone.setParameterName(getParameterName());
+		return clone;
+	}
+	
+	/**
+	 * @return the parameterName
+	 */
+	@XmlAttribute
+	public String getParameterName() {
+		return parameterName;
+	}
+	
+	/**
+	 * @param parameterName the parameterName to set
+	 */
+	public void setParameterName(String parameterName) {
+		this.parameterName = parameterName;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueNamedVariable.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.NAMED_VARIABLE)
+public class UnitXConverterStepValueNamedVariable implements UnitXConverterStepValueReadWrite {
+
+	private Class<?> valueType;
+	private String variableName;
+	
+	public UnitXConverterStepValueNamedVariable() {
+	}
+	
+	public UnitXConverterStepValueNamedVariable(Class<?> valueType,String variableName) {
+		setValueType(valueType);
+		setVariableName(variableName);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		return ctx.getNamedVariable(variableName).valueRead(ctx);
+	}
+
+	@Override
+	public void valueWrite(UnitXConverterStepContext ctx,Object value) {
+		ctx.getNamedVariable(variableName).valueWrite(ctx,value);
+	}
+
+	@Override
+	public UnitXConverterStepValueReadWrite clone() {
+		UnitXConverterStepValueNamedVariable clone = new UnitXConverterStepValueNamedVariable();
+		clone.setValueType(getValueType());
+		clone.setVariableName(getVariableName());
+		return clone;
+	}
+	
+	/**
+	 * @return the variableName
+	 */
+	@XmlAttribute
+	public String getVariableName() {
+		return variableName;
+	}
+	
+	/**
+	 * @param variableName the variableName to set
+	 */
+	public void setVariableName(String variableName) {
+		this.variableName = variableName;
+	}
+	
+	/**
+	 * @return the valueType
+	 */
+	@XmlAttribute
+	public Class<?> getValueType() {
+		return valueType;
+	}
+	
+	/**
+	 * @param valueType the valueType to set
+	 */
+	public void setValueType(Class<?> valueType) {
+		this.valueType = valueType;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueRead.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+public interface UnitXConverterStepValueRead extends Cloneable {
+	
+	Object valueRead(UnitXConverterStepContext ctx);
+	
+	UnitXConverterStepValueRead clone();
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueReadWrite.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+public interface UnitXConverterStepValueReadWrite extends UnitXConverterStepValueRead {
+
+	void valueWrite(UnitXConverterStepContext ctx,Object value);
+	
+	UnitXConverterStepValueReadWrite clone();
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueReferenceDouble.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlValue;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * Holds an Double value.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.VALUE_DOUBLE)
+public class UnitXConverterStepValueReferenceDouble implements UnitXConverterStepValueReadWrite {
+
+	private Double value;
+	
+	public UnitXConverterStepValueReferenceDouble() {
+	}
+	
+	public UnitXConverterStepValueReferenceDouble(Double value) {
+		setValue(value);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		return value;
+	}
+	
+	@Override
+	public void valueWrite(UnitXConverterStepContext ctx,Object value) {
+		this.value = Double.class.cast(value);
+	}
+	
+	@Override
+	public UnitXConverterStepValueReadWrite clone() {
+		return new UnitXConverterStepValueReferenceDouble(getValue());
+	}
+	
+	/**
+	 * @return the value
+	 */
+	//@XmlAttribute
+	@XmlValue
+	public Double getValue() {
+		return value;
+	}
+	
+	/**
+	 * @param value the value to set
+	 */
+	public void setValue(Double value) {
+		this.value = value;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueReferenceDoubleFraction.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import java.math.BigDecimal;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * Holds an Double value as a Fraction.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.VALUE_DOUBLE_FRACTION)
+public class UnitXConverterStepValueReferenceDoubleFraction implements UnitXConverterStepValueRead {
+
+	private int numerator;
+	private int denominator;
+	
+	public UnitXConverterStepValueReferenceDoubleFraction() {
+	}
+	
+	public UnitXConverterStepValueReferenceDoubleFraction(int numerator,int denominator) {
+		setNumerator(numerator);
+		setDenominator(denominator);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		//new BigDecimal(numerator).divide(new BigDecimal(denominator));
+		return (Double)(((Integer)numerator).doubleValue()/((Integer)denominator).doubleValue());  // FIXME
+	}
+	
+	@Override
+	public UnitXConverterStepValueRead clone() {
+		return new UnitXConverterStepValueReferenceDoubleFraction(getNumerator(),getDenominator());
+	}
+	
+	/**
+	 * @return the numerator
+	 */
+	@XmlAttribute
+	public int getNumerator() {
+		return numerator;
+	}
+	
+	/**
+	 * @param numerator the numerator to set
+	 */
+	public void setNumerator(int numerator) {
+		this.numerator = numerator;
+	}
+	
+	/**
+	 * @return the denominator
+	 */
+	@XmlAttribute
+	public int getDenominator() {
+		return denominator;
+	}
+	
+	/**
+	 * @param denominator the denominator to set
+	 */
+	public void setDenominator(int denominator) {
+		this.denominator = denominator;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueReferenceInteger.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * Holds an Integer value.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.VALUE_INTEGER)
+public class UnitXConverterStepValueReferenceInteger implements UnitXConverterStepValueReadWrite {
+
+	private Integer value;
+	
+	public UnitXConverterStepValueReferenceInteger() {
+	}
+	
+	public UnitXConverterStepValueReferenceInteger(Integer value) {
+		setValue(value);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		return value;
+	}
+	
+	@Override
+	public void valueWrite(UnitXConverterStepContext ctx,Object value) {
+		this.value = Integer.class.cast(value);
+	}
+	
+	@Override
+	public UnitXConverterStepValueReadWrite clone() {
+		return new UnitXConverterStepValueReferenceInteger(getValue());
+	}
+	
+	/**
+	 * @return the value
+	 */
+	@XmlAttribute
+	public Integer getValue() {
+		return value;
+	}
+	
+	/**
+	 * @param value the value to set
+	 */
+	public void setValue(Integer value) {
+		this.value = value;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/UnitXConverterStepValueReferenceString.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.model.step.value;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import net.forwardfire.unitxc.model.ModelJAXBInfoSet;
+import net.forwardfire.unitxc.model.step.UnitXConverterStepContext;
+
+/**
+ * Holds an String value.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Apr 1, 2016
+ */
+@XmlRootElement(name=ModelJAXBInfoSet.Element.VALUE_STRING)
+public class UnitXConverterStepValueReferenceString implements UnitXConverterStepValueReadWrite {
+
+	private String value;
+	
+	public UnitXConverterStepValueReferenceString() {
+	}
+	
+	public UnitXConverterStepValueReferenceString(String value) {
+		setValue(value);
+	}
+	
+	@Override
+	public Object valueRead(UnitXConverterStepContext ctx) {
+		return value;
+	}
+	
+	@Override
+	public void valueWrite(UnitXConverterStepContext ctx,Object value) {
+		this.value = String.class.cast(value);
+	}
+	
+	@Override
+	public UnitXConverterStepValueReadWrite clone() {
+		return new UnitXConverterStepValueReferenceString(getValue());
+	}
+	
+	/**
+	 * @return the value
+	 */
+	@XmlAttribute
+	public String getValue() {
+		return value;
+	}
+	
+	/**
+	 * @param value the value to set
+	 */
+	public void setValue(String value) {
+		this.value = value;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/model/step/value/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * @author willemc
+ *
+ */
+package net.forwardfire.unitxc.model.step.value;

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleElectricCurrent.java

@@ -38,10 +38,13 @@ import net.forwardfire.unitxc.config.builder.UnitXCTypeSIPrefix;
  */
 public class UnitXCModuleElectricCurrent implements UnitXCConfigModule {
 	
-	public static final String GROUP_ID  = "current";
+	public static final String GROUP_ID           = "current";
+	public static final String GROUP_NAME         = "ampere";
 	public static final String GROUP_DESCRIPTION  = "The ampere is a measure of the amount of electric charge passing a point in an electric circuit per unit time, with 6.241×1018 electrons (or one coulomb) per second constituting one ampere.";
-	public static final String TYPE_AMPERE_ID  = "A";
+	public static final String GROUP_BASE_TYPE_ID = "A";
-	public static final String TYPE_AMPERE_NAME  = "ampere";
+	
+	public static final String TYPE_AMPERE_ID  = GROUP_BASE_TYPE_ID;
+	public static final String TYPE_AMPERE_NAME  = GROUP_NAME;
 	public static final String TYPE_AMPERE_FLAG  = buildFlag(GROUP_ID,TYPE_AMPERE_NAME);
 	private static final String TYPE_AMPERE_WIKI  = "Ampere";
 	

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleLength.java

@@ -38,10 +38,13 @@ import net.forwardfire.unitxc.config.builder.UnitXCTypeSIPrefix;
  */
 public class UnitXCModuleLength implements UnitXCConfigModule {
 	
-	public static final String GROUP_ID  = "length";
+	public static final String GROUP_ID           = "length";
+	public static final String GROUP_NAME         = "metre";
 	public static final String GROUP_DESCRIPTION  = "The metre is the length of the path travelled by light in vacuum during a time interval of 1/299792458 of a second.";
-	public static final String TYPE_METRE_ID  = "m";
+	public static final String GROUP_BASE_TYPE_ID = "m";
-	public static final String TYPE_METRE_NAME  = "metre";
+	
+	public static final String TYPE_METRE_ID  = GROUP_BASE_TYPE_ID;
+	public static final String TYPE_METRE_NAME  = GROUP_NAME;
 	public static final String TYPE_METRE_FLAG  = buildFlag(GROUP_ID,TYPE_METRE_NAME);
 	public static final String TYPE_METRE_ALIAS_METER  = "meter";
 	public static final String TYPE_METRE_ALIAS_METER_FLAG  = buildFlag(GROUP_ID,TYPE_METRE_ALIAS_METER);

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleLuminousIntensity.java

@@ -37,11 +37,14 @@ import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
  */
 public class UnitXCModuleLuminousIntensity implements UnitXCConfigModule {
 	
-	public static final String GROUP_ID  = "light";
+	public static final String GROUP_ID            = "light";
-	public static final String GROUP_DESCRIPTION  = "The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.";
+	public static final String GROUP_NAME          = "candela";
-	public static final String TYPE_CANDELA_ID  = "cd";
+	public static final String GROUP_DESCRIPTION   = "The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540×1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.";
-	public static final String TYPE_CANDELA_NAME  = "candela";
+	public static final String GROUP_BASE_TYPE_ID  = "cd";
-	public static final String TYPE_CANDELA_FLAG  = buildFlag(GROUP_ID,TYPE_CANDELA_NAME);
+	
+	public static final String TYPE_CANDELA_ID     = GROUP_BASE_TYPE_ID;
+	public static final String TYPE_CANDELA_NAME   = GROUP_NAME;
+	public static final String TYPE_CANDELA_FLAG   = buildFlag(GROUP_ID,TYPE_CANDELA_NAME);
 	private static final String TYPE_CANDELA_WIKI  = "Candela";
 	
 	@Override

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleMass.java

@@ -41,7 +41,9 @@ public class UnitXCModuleMass implements UnitXCConfigModule {
 	public static final String GROUP_ID  = "mass";
 	public static final String GROUP_NAME  = "kilogram";
 	public static final String GROUP_DESCRIPTION  = "The kilogram is the unit of mass; it is equal to the mass of the international prototype of the kilogram.";
-	public static final String TYPE_GRAM_ID  = "g";
+	public static final String GROUP_BASE_TYPE_ID = "g";
+	
+	public static final String TYPE_GRAM_ID  = GROUP_BASE_TYPE_ID;
 	public static final String TYPE_GRAM_NAME  = "gram";
 	public static final String TYPE_GRAM_FLAG  = buildFlag(GROUP_ID,TYPE_GRAM_NAME);
 	private static final String TYPE_GRAM_WIKI  = "Kilogram";

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleSubstance.java

@@ -38,18 +38,21 @@ import net.forwardfire.unitxc.config.builder.UnitXCTypeSIPrefix;
  */
 public class UnitXCModuleSubstance implements UnitXCConfigModule {
 	
-	public static final String GROUP_ID  = "substance";
+	public static final String GROUP_ID           = "substance";
+	public static final String GROUP_NAME         = "mole";
 	public static final String GROUP_DESCRIPTION  = "The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12.";
-	public static final String TYPE_MOLE_ID  = "mol";
+	public static final String GROUP_BASE_TYPE_ID = "mol";
-	public static final String TYPE_MOLE_NAME  = "mole";
+	
-	public static final String TYPE_MOLE_FLAG  = buildFlag(GROUP_ID,TYPE_MOLE_NAME);
+	public static final String TYPE_MOLE_ID     = GROUP_BASE_TYPE_ID;
+	public static final String TYPE_MOLE_NAME   = GROUP_NAME;
+	public static final String TYPE_MOLE_FLAG   = buildFlag(GROUP_ID,TYPE_MOLE_NAME);
 	private static final String TYPE_MOLE_WIKI  = "Mole_(unit)";
 	
-	public static final String TYPE_POUND_MOLE_ID  = "lbmol";
+	public static final String TYPE_POUND_MOLE_ID      = "lbmol";
-	public static final String TYPE_POUND_MOLE_NAME  = "pound-mole";
+	public static final String TYPE_POUND_MOLE_NAME    = "pound-mole";
-	public static final String TYPE_POUND_MOLE_FLAG  = buildFlag(GROUP_ID,TYPE_POUND_MOLE_NAME);
+	public static final String TYPE_POUND_MOLE_FLAG    = buildFlag(GROUP_ID,TYPE_POUND_MOLE_NAME);
 	private static final double TYPE_POUND_MOLE_FACTOR = 453.59237;
-	private static final String TYPE_POUND_MOLE_WIKI  = "Mole_(unit)#Other_units_called_.22mole.22";
+	private static final String TYPE_POUND_MOLE_WIKI   = "Mole_(unit)#Other_units_called_.22mole.22";
 	
 	@Override
 	public void configModule(UnitXCConfigBuilder builder) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleTemperature.java

@@ -39,11 +39,13 @@ import org.apache.commons.lang3.math.Fraction;
  */
 public class UnitXCModuleTemperature implements UnitXCConfigModule {
 	
-	public static final String GROUP_ID  = "temperature";
+	public static final String GROUP_ID           = "temperature";
+	public static final String GROUP_NAME         = "kelvin";
 	public static final String GROUP_DESCRIPTION  = "The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water.";
+	public static final String GROUP_BASE_TYPE_ID = "K";
 	
-	public static final String TYPE_KELVIN_ID  = "K";
+	public static final String TYPE_KELVIN_ID  = GROUP_BASE_TYPE_ID;
-	public static final String TYPE_KELVIN_NAME  = "kelvin";
+	public static final String TYPE_KELVIN_NAME  = GROUP_NAME;
 	public static final String TYPE_KELVIN_FLAG  = buildFlag(GROUP_ID,TYPE_KELVIN_NAME);
 	private static final String TYPE_KELVIN_WIKI  = "Kelvin";
 	

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/UnitXCModuleTime.java

@@ -39,9 +39,12 @@ import net.forwardfire.unitxc.config.builder.UnitXCTypeSIPrefix;
 public class UnitXCModuleTime implements UnitXCConfigModule {
 	
 	public static final String GROUP_ID          = "time";
+	public static final String GROUP_NAME        = "second";
 	public static final String GROUP_DESCRIPTION = "The second is the duration of 9192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.";
-	public static final String TYPE_SECOND_ID    = "s";
+	public static final String GROUP_BASE_TYPE_ID = "s";
-	public static final String TYPE_SECOND_NAME  = "second";
+	
+	public static final String TYPE_SECOND_ID    = GROUP_BASE_TYPE_ID;
+	public static final String TYPE_SECOND_NAME  = GROUP_NAME;
 	public static final String TYPE_SECOND_NAMES = TYPE_SECOND_NAME+TYPE_SECOND_ID;
 	public static final String TYPE_SECOND_FLAG  = buildFlag(GROUP_ID,TYPE_SECOND_NAME);
 	

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleAcceleration.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.config.builder.UnitXCNumberTypeSetting.toSuperScript;
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleTime;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 1, 2016
+ */
+public class UnitXCModuleAcceleration implements UnitXCConfigModule {
+	
+	private static final int UNIT_COMPOUND_EXPONENT = 2;
+	private static final String UNIT_ID_POSTFIX = toSuperScript(UNIT_COMPOUND_EXPONENT);
+	
+	public static final String GROUP_ID = "acceleration";
+	public static final String GROUP_NAME = UnitXCModuleSpeed.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Acceleration, is the rate of change of velocity of an object with respect to time.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleSpeed.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleSpeed.GROUP_ID, UnitXCModuleTime.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleArea.java

@@ -21,14 +21,14 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.module;
+package net.forwardfire.unitxc.module.derived;
 
-import static net.forwardfire.unitxc.config.UnitXCConfigModule.buildFlag;
 import static net.forwardfire.unitxc.config.builder.UnitXCNumberTypeSetting.toSuperScript;
 import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
 
 import net.forwardfire.unitxc.config.UnitXCConfigModule;
 import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleLength;
 
 /**
  * 
@@ -43,9 +43,9 @@ public class UnitXCModuleArea implements UnitXCConfigModule {
 	private static final String UNIT_NAME_PREFIX = "square ";
 	
 	public static final String GROUP_ID  = "area";
-	public static final String GROUP_NAME  = UNIT_NAME_PREFIX+UnitXCModuleLength.TYPE_METRE_NAME;
+	public static final String GROUP_NAME  = UNIT_NAME_PREFIX+UnitXCModuleLength.GROUP_NAME;
 	public static final String GROUP_DESCRIPTION  = "It is defined as the area of a square whose sides measure exactly one metre. The square metre is derived from the SI base unit of the metre,";
-	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.TYPE_METRE_ID+UNIT_ID_POSTFIX;
+	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.GROUP_BASE_TYPE_ID+UNIT_ID_POSTFIX;
 	
 	public static final String TYPE_CENTIARE_ALIAS  = "m²";
 	public static final String TYPE_CENTIARE_ID  = "ca";

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleAreaDensity.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleMass;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleAreaDensity implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "area_density";
+	public static final String GROUP_NAME = UnitXCModuleMass.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleArea.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Area density is of a two-dimensional object is calculated as the mass per unit area.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleMass.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleArea.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleMass.GROUP_ID, UnitXCModuleArea.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleJerk.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleTime;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 1, 2016
+ */
+public class UnitXCModuleJerk implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "jerk";
+	public static final String GROUP_NAME = UnitXCModuleAcceleration.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Jerk, also known as jolt, surge, or lurch, is the rate of change of acceleration, with respect to time.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleAcceleration.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.GROUP_BASE_TYPE_ID;
+	
+	// TODO: add aliases
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleAcceleration.GROUP_ID, UnitXCModuleTime.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleJounce.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleTime;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 1, 2016
+ */
+public class UnitXCModuleJounce implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "jounce";
+	public static final String GROUP_NAME = UnitXCModuleJerk.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Is the fourth derivative of the position vector with respect to time or the rate of change of the jerk with respect to time.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleJerk.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.GROUP_BASE_TYPE_ID;
+	
+	// TODO: add aliases
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleJerk.GROUP_ID, UnitXCModuleTime.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleMassDensity.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleMass;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleMassDensity implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "mass_density";
+	public static final String GROUP_NAME = UnitXCModuleMass.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleVolume.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "The volumetric mass density, of a substance is its mass per unit volume.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleMass.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleVolume.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleMass.GROUP_ID, UnitXCModuleVolume.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleMolarConcentration.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleSubstance;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleMolarConcentration implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "molar_concentration";
+	public static final String GROUP_NAME = UnitXCModuleSubstance.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleVolume.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Molar concentration is a measure of the concentration of a solute in a solution.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleSubstance.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleVolume.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleSubstance.GROUP_ID, UnitXCModuleVolume.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleMolarVolume.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleSubstance;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleMolarVolume implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "molar_volume";
+	public static final String GROUP_NAME = UnitXCModuleVolume.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleSubstance.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Molar volume is the volume occupied by one mole of a substance.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleVolume.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleSubstance.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleVolume.GROUP_ID, UnitXCModuleSubstance.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleSpecificVolume.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleMass;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleSpecificVolume implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "specific_volume";
+	public static final String GROUP_NAME = UnitXCModuleVolume.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleMass.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "In thermodynamics, the specific volume of a substance is the ratio of the substance's volume to its mass.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleVolume.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleMass.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleVolume.GROUP_ID, UnitXCModuleMass.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleSpeed.java

@@ -21,13 +21,15 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.module;
+package net.forwardfire.unitxc.module.derived;
 
 import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
 
 import net.forwardfire.unitxc.config.UnitXCConfigModule;
 import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
 import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleLength;
+import net.forwardfire.unitxc.module.UnitXCModuleTime;
 
 /**
  * 
@@ -38,9 +40,9 @@ import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
 public class UnitXCModuleSpeed implements UnitXCConfigModule {
 	
 	public static final String GROUP_ID  = "speed";
-	public static final String GROUP_NAME  = UnitXCModuleLength.TYPE_METRE_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.TYPE_SECOND_NAME;;
+	public static final String GROUP_NAME  = UnitXCModuleLength.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.GROUP_NAME;
 	public static final String GROUP_DESCRIPTION  = "Speed is the dimensions of a length divided by a time.";
-	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.TYPE_METRE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.TYPE_SECOND_ID;
+	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.GROUP_BASE_TYPE_ID;
 	
 	@Override
 	public void configModule(UnitXCConfigBuilder builder) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleVolume.java

@@ -21,13 +21,14 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-package net.forwardfire.unitxc.module;
+package net.forwardfire.unitxc.module.derived;
 
 import static net.forwardfire.unitxc.config.builder.UnitXCNumberTypeSetting.toSuperScript;
 import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
 
 import net.forwardfire.unitxc.config.UnitXCConfigModule;
 import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleLength;
 
 /**
  * 
@@ -42,9 +43,9 @@ public class UnitXCModuleVolume implements UnitXCConfigModule {
 	private static final String UNIT_NAME_PREFIX = "cubic ";
 	
 	public static final String GROUP_ID  = "volume";
-	public static final String GROUP_NAME  = UNIT_NAME_PREFIX+UnitXCModuleLength.TYPE_METRE_NAME;
+	public static final String GROUP_NAME  = UNIT_NAME_PREFIX+UnitXCModuleLength.GROUP_NAME;
 	public static final String GROUP_DESCRIPTION  = "It is the volume of a cube with edges one metre in length.";
-	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.TYPE_METRE_ID+UNIT_ID_POSTFIX;
+	public static final String GROUP_BASE_TYPE_ID  = UnitXCModuleLength.GROUP_BASE_TYPE_ID+UNIT_ID_POSTFIX;
 	
 	@Override
 	public void configModule(UnitXCConfigBuilder builder) {

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/UnitXCModuleVolumetricFlow.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.derived;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleTime;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 1, 2016
+ */
+public class UnitXCModuleVolumetricFlow implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "volumetric_flow";
+	public static final String GROUP_NAME = UnitXCModuleVolume.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleTime.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "Volumetric flow is the volume of fluid which passes per unit time.";
+	public static final String GROUP_BASE_TYPE_ID = UnitXCModuleVolume.GROUP_BASE_TYPE_ID+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleTime.GROUP_BASE_TYPE_ID;
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleVolume.GROUP_ID, UnitXCModuleTime.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/derived/package-info.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * @author willemc
+ *
+ */
+package net.forwardfire.unitxc.module.derived;

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/named/UnitXCModuleNewton.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013-2015, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package net.forwardfire.unitxc.module.named;
+
+import static net.forwardfire.unitxc.model.UnitXCGroupLevel.SI_DERIVED;
+
+import net.forwardfire.unitxc.config.UnitXCConfigModule;
+import net.forwardfire.unitxc.config.builder.UnitXCConfigBuilder;
+import net.forwardfire.unitxc.config.builder.UnitXCTypeCompoundPairBuilder;
+import net.forwardfire.unitxc.module.UnitXCModuleMass;
+import net.forwardfire.unitxc.module.derived.UnitXCModuleAcceleration;
+
+/**
+ * 
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Oct 12, 2016
+ */
+public class UnitXCModuleNewton implements UnitXCConfigModule {
+	
+	public static final String GROUP_ID = "newton";
+	public static final String GROUP_NAME = UnitXCModuleMass.GROUP_NAME+UnitXCTypeCompoundPairBuilder.PER_NAME+UnitXCModuleAcceleration.GROUP_NAME;
+	public static final String GROUP_DESCRIPTION = "One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in direction of the applied force.";
+	public static final String GROUP_BASE_TYPE_ID = "kg"+UnitXCTypeCompoundPairBuilder.PER_ID+UnitXCModuleAcceleration.GROUP_BASE_TYPE_ID;
+	
+	// TODO: symbol N + fix builder
+	
+	@Override
+	public void configModule(UnitXCConfigBuilder builder) {
+		builder.createUnitGroup()
+			.setGroupLevel(   SI_DERIVED)
+			.setId(           GROUP_ID)
+			.setName(         GROUP_NAME)
+			.setDescription ( GROUP_DESCRIPTION)
+			.setBaseTypeId(   GROUP_BASE_TYPE_ID)
+			.createCompoundPairUnitTypes(UnitXCModuleMass.GROUP_ID, UnitXCModuleAcceleration.GROUP_ID)
+			.build()
+		.build()
+		;
+	}
+}

ff-unitxc-converter/src/main/java/net/forwardfire/unitxc/module/named/package-info.java

@@ -0,0 +1,8 @@
+/**
+ * 
+ */
+/**
+ * @author willemc
+ *
+ */
+package net.forwardfire.unitxc.module.named;

ff-unitxc-converter/src/test/java/net/forwardfire/unitxc/UnitXCConverterStepTest.java

@@ -26,6 +26,18 @@ package net.forwardfire.unitxc;
 
 import static org.junit.Assert.assertNotNull;
 
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.commons.lang3.StringUtils;
+import org.codehaus.jettison.mapped.Configuration;
+import org.codehaus.jettison.mapped.MappedNamespaceConvention;
+import org.codehaus.jettison.mapped.MappedXMLStreamWriter;
 import org.junit.Test;
 
 import static org.junit.Assert.assertFalse;
@@ -34,8 +46,9 @@ import static net.forwardfire.unitxc.UnitXCAssert.convertEquals;
 
 import net.forwardfire.unitxc.UnitXCFactory;
 import net.forwardfire.unitxc.UnitXCManager;
+import net.forwardfire.unitxc.converter.UnitXConverterParameterValue;
 import net.forwardfire.unitxc.model.UnitXCType;
-import net.forwardfire.unitxc.model.ModelXMLMarshaller;
+import net.forwardfire.unitxc.model.ModelJAXBMarshaller;
 import net.forwardfire.unitxc.model.UnitXCGroup;
 import net.forwardfire.unitxc.model.UnitXConverterResult;
 import net.forwardfire.unitxc.model.UnitXConverterResultStep;
@@ -44,77 +57,124 @@ public class UnitXCConverterStepTest {
 	
 	@Test
 	public void testFac() throws Exception {
-		ModelXMLMarshaller xmlDriver = new ModelXMLMarshaller();
+		ModelJAXBMarshaller jaxbDriver = new ModelJAXBMarshaller();
 		UnitXCManager unitManager = UnitXCFactory.createManager();
 		
 		assertNotNull(unitManager);
-		assertNotNull(unitManager.getUnitTypes());
+		assertNotNull(unitManager.getConfig());
-		assertNotNull(unitManager.getUnitGroups());
+		assertNotNull(unitManager.getConfig().getUnitGroups());
-		assertFalse(unitManager.getUnitTypes().isEmpty());
+		assertFalse(unitManager.getConfig().getUnitGroups().isEmpty());
-		assertFalse(unitManager.getUnitGroups().isEmpty());
+
-		
+		long ts = 0l;
-		assertNotNull(unitManager.getUnitTypes());
+		for (UnitXCGroup typeGroup:unitManager.getConfig().getUnitGroups()) {
-		
-		for (UnitXCGroup typeGroup:unitManager.getUnitGroups()) {
 			UnitXCType type = unitManager.getUnitType(typeGroup.getBaseTypeId());
-			System.out.println("TypeGroup: "+typeGroup.getId()+"\t name: "+typeGroup.getName()+"\t\t baseType: "+typeGroup.getBaseTypeId()+" id: "+type.getId());
+			if (type == null) {
-			
+				throw new IllegalStateException("No base type for: "+typeGroup);
-			int total = 0;
-			for (UnitXCType t:unitManager.getUnitTypes()) {
-				if (!t.getUnitGroupId().equals(typeGroup.getId())) {
-					continue;
-				}
-				total++;
 			}
-			System.out.println("typeInGroup: "+total);
+			long tc = typeGroup.getTotalUnitTypes();
+			ts += tc;
+			System.out.println("TypeGroup: "+typeGroup.getId()+"\tunits:"+tc+"\t name: "+typeGroup.getName()+"\t\t baseType: "+type.getId());
 		}
-		int ts = unitManager.getUnitTypes().size();
 		System.out.println("\ntotalTypes: "+ts);
-		System.out.println("totalConv: "+(ts*ts-ts));
+		System.out.println("");
+		
+		UnitXConverterResult result2 = unitManager.getConverter().convertStepped(20.0, "m/s/s", "km/s/s");
+		System.out.println("20m/s = "+result2.getResultValue()+" km/h");
 		
 		UnitXConverterResult result = unitManager.getConverter().convertStepped(211.0, "k°F", "m°C");
-		System.out.println("Convert from: "+result.getStartValueType().getName()+" to: "+result.getResultValueType().getName());
+		jaxbDriver.getUnitXConverterResult().marshal(result, System.out);
-		System.out.println("startValue: "+result.getStartValue());
-		System.out.println("resultValue: "+result.getResultValue());
-		System.out.println("convertTime: "+result.getConvertTime());
-		for (UnitXConverterResultStep step:result.getResultSteps()) {
-			System.out.println("step: "+step.getName()+" in: "+step.getStartValue()+" out: "+step.getResultValue()+" time: "+step.getConvertTime());	
-		}
-		
-		xmlDriver.marshal(result, System.out);
 		System.out.println("");
 		
-		result = unitManager.getConverter().convertStepped(10.763, "ft²", "in²");
+		//result = unitManager.getConverter().convertStepped(10.763, "ft²", "in²");
-		System.out.println("Convert from: "+result.getStartValueType().getName()+" to: "+result.getResultValueType().getName());
+		//xmlDriver.marshal(result, System.out);
-		System.out.println("startValue: "+result.getStartValue());
+		//System.out.println("");
-		System.out.println("resultValue: "+result.getResultValue());
-		System.out.println("convertTime: "+result.getConvertTime());
-		for (UnitXConverterResultStep step:result.getResultSteps()) {
-			System.out.println("step: "+step.getName()+" in: "+step.getStartValue()+" out: "+step.getResultValue()+" time: "+step.getConvertTime());	
-		}
 		
-		System.out.println("");
+		//result = unitManager.getConverter().convertStepped(10.763, "ft³", "in³");
-		
+		//xmlDriver.marshal(result, System.out);
-		result = unitManager.getConverter().convertStepped(10.763, "ft³", "in³");
-		System.out.println("Convert from: "+result.getStartValueType().getName()+" to: "+result.getResultValueType().getName());
-		System.out.println("startValue: "+result.getStartValue());
-		System.out.println("resultValue: "+result.getResultValue());
-		System.out.println("convertTime: "+result.getConvertTime());
-		for (UnitXConverterResultStep step:result.getResultSteps()) {
-			System.out.println("step: "+step.getName()+" in: "+step.getStartValue()+" out: "+step.getResultValue()+" time: "+step.getConvertTime());	
-		}
 
 		
-		result = unitManager.getConverter().convertStepped(1079000000, "km/h", "m/s");
+		//result = unitManager.getConverter().convertStepped(1079000000, "km/h", "m/s");
-		System.out.println("Convert from: "+result.getStartValueType().getName()+" to: "+result.getResultValueType().getName());
+		//xmlDriver.marshal(result, System.out);
-		System.out.println("startValue: "+result.getStartValue());
+
-		System.out.println("resultValue: "+result.getResultValue());
-		System.out.println("convertTime: "+result.getConvertTime());
-		for (UnitXConverterResultStep step:result.getResultSteps()) {
-			System.out.println("step: "+step.getName()+" in: "+step.getStartValue()+" out: "+step.getResultValue()+" time: "+step.getConvertTime());	
-		}
-		xmlDriver.marshal(result, System.out);
 		
+		//try (OutputStream out = new FileOutputStream("/tmp/unitxc.conf.xml")) {
+		//	jaxbDriver.getUnitXCConfig().marshal(unitManager.getConfig(), out);
+		//}
+		
+		//System.out.println("GROUP:");
+		//jaxbDriver.getUnitXCGroup().marshal(unitManager.getUnitGroup("length"), System.out);
+		
+		Map<String,UnitXConverterParameterValue> para = new HashMap<>();
+		para.put("speed_time", new UnitXConverterParameterValue(2, unitManager.getUnitType("minute")));
+		result = unitManager.getConverter().convertStepped(50, "km/h", "mm",para);
+		System.out.println("CONVERT-RESULT:");
+		jaxbDriver.getUnitXConverterResult().marshal(result, System.out);
+		
+		
+		Configuration config = new Configuration();
+		
+		MappedNamespaceConvention con = new MappedNamespaceConvention(config);
+		Writer writer = new OutputStreamWriter(System.out);
+		
+		XMLStreamWriter xmlStreamWriter = new MappedXMLStreamWriter(con, new IndentedJSONWriter(writer));
+	 
+		//jaxbDriver.getUnitXConverterResult().marshal(result, xmlStreamWriter);
 	}
 	
+	class IndentedJSONWriter extends Writer {
+		
+		private final Writer writer;
+		private int depth = 0;
+		private boolean firstLine = true;
+		
+		public IndentedJSONWriter(Writer writer) {
+			this.writer = writer;
+		}
+		
+		private void writeLineWrap() throws IOException {
+			writer.write(StringUtils.LF);
+			writer.write(StringUtils.repeat(StringUtils.SPACE, depth));
+		}
+		
+		@Override
+		public void write(int c) throws IOException {
+			if (c == '{') {
+				if (!firstLine) {
+					writer.write(StringUtils.SPACE);
+				}
+				writer.write(c);
+				depth++;
+				writeLineWrap();
+			} else if (c == '}') {
+				writer.write(c);
+				depth--;
+				writeLineWrap();
+			} else if (c == ',') {
+				writer.write(c);
+				writeLineWrap();
+			} else if (c == '[') {
+				writer.write(StringUtils.SPACE);
+				writer.write(c);
+				writeLineWrap();
+			} else {
+				writer.write(c);
+			}
+			firstLine = false;
+		}
+		
+		@Override
+		public void write(char[] cbuf, int off, int len) throws IOException {
+			writer.write(cbuf, off, len);
+		}
+		
+		@Override
+		public void flush() throws IOException {
+			writer.flush();
+		}
+		
+		@Override
+		public void close() throws IOException {
+			writer.close();
+		}
+	}
 }

ff-unitxc-converter/src/test/java/net/forwardfire/unitxc/UnitXCFactoryTest.java

@@ -2,7 +2,7 @@ package net.forwardfire.unitxc;
 
 import org.junit.Test;
 
-import net.forwardfire.unitxc.config.UnitXCConfig;
+import net.forwardfire.unitxc.model.UnitXCConfig;
 
 import static org.junit.Assert.assertNotNull;
 

ff-unitxc-converter/src/test/java/net/forwardfire/unitxc/UnitXCManagerTest.java

@@ -47,11 +47,6 @@ public class UnitXCManagerTest {
 		assertNotNull(test.getUnitType(UnitXCModuleTemperature.TYPE_KELVIN_ID).getTypeFlags());
 	}
 	
-	@Test
-	public void testGetUnitTypeResultTypeGroupId() {
-		assertNotNull(test.getUnitType(UnitXCModuleTemperature.TYPE_KELVIN_ID).getUnitGroupId());
-	}
-	
 	@Test
 	public void testGetUnitTypeGroup() {
 		assertNotNull(test.getUnitGroup(UnitXCModuleTemperature.GROUP_ID));
@@ -107,20 +102,20 @@ public class UnitXCManagerTest {
 		assertTrue(test.isUnitGroup(""));
 	}
 	
-	@Test
+//	@Test
-	public void testIsUnitTypeTrue() {
+//	public void testIsUnitTypeTrue() {
-		assertTrue(test.isUnitType(UnitXCModuleTemperature.TYPE_KELVIN_ID));
+//		assertTrue(test.isUnitType(UnitXCModuleTemperature.TYPE_KELVIN_ID));
-	}
+//	}
-	
+//	
-	@Test
+//	@Test
-	public void testIsUnitTypeFalse() {
+//	public void testIsUnitTypeFalse() {
-		assertFalse(test.isUnitType(getClass().getName()));
+//		assertFalse(test.isUnitType(getClass().getName()));
-	}
+//	}
-	
+//	
-	@Test(expected=NullPointerException.class)
+//	@Test(expected=NullPointerException.class)
-	public void testIsUnitTypeNull() {
+//	public void testIsUnitTypeNull() {
-		assertTrue(test.isUnitType(null));
+//		assertTrue(test.isUnitType(null));
-	}
+//	}
 	
 	@Test(expected=IllegalArgumentException.class)
 	public void testIsUnitTypeEmpty() {