]> gerrit.simantics Code Review - simantics/interop.git/commitdiff
Java API for diagrams, work in progress 69/2769/1
authorMarko Luukkainen <marko.luukkainen@semantum.fi>
Tue, 12 Mar 2019 16:48:36 +0000 (18:48 +0200)
committerMarko Luukkainen <marko.luukkainen@semantum.fi>
Tue, 12 Mar 2019 16:48:36 +0000 (18:48 +0200)
gitlab #7

Change-Id: I05295206618511bd3d55589fd588fa1079f042e2

org.simantics.interop.diagram/.classpath [new file with mode: 0644]
org.simantics.interop.diagram/.gitignore [new file with mode: 0644]
org.simantics.interop.diagram/.project [new file with mode: 0644]
org.simantics.interop.diagram/.settings/org.eclipse.jdt.core.prefs [new file with mode: 0644]
org.simantics.interop.diagram/META-INF/MANIFEST.MF [new file with mode: 0644]
org.simantics.interop.diagram/build.properties [new file with mode: 0644]
org.simantics.interop.diagram/src/org/simantics/interop/diagram/Diagram.java [new file with mode: 0644]
org.simantics.interop.diagram/src/org/simantics/interop/diagram/DiagramUtils.java [new file with mode: 0644]
org.simantics.interop.diagram/src/org/simantics/interop/diagram/Symbol.java [new file with mode: 0644]

diff --git a/org.simantics.interop.diagram/.classpath b/org.simantics.interop.diagram/.classpath
new file mode 100644 (file)
index 0000000..eca7bdb
--- /dev/null
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+       <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+       <classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+       <classpathentry kind="src" path="src"/>
+       <classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/org.simantics.interop.diagram/.gitignore b/org.simantics.interop.diagram/.gitignore
new file mode 100644 (file)
index 0000000..65776c3
--- /dev/null
@@ -0,0 +1 @@
+/bin/
\ No newline at end of file
diff --git a/org.simantics.interop.diagram/.project b/org.simantics.interop.diagram/.project
new file mode 100644 (file)
index 0000000..409c5f0
--- /dev/null
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+       <name>org.simantics.interop.diagram</name>
+       <comment></comment>
+       <projects>
+       </projects>
+       <buildSpec>
+               <buildCommand>
+                       <name>org.eclipse.jdt.core.javabuilder</name>
+                       <arguments>
+                       </arguments>
+               </buildCommand>
+               <buildCommand>
+                       <name>org.eclipse.pde.ManifestBuilder</name>
+                       <arguments>
+                       </arguments>
+               </buildCommand>
+               <buildCommand>
+                       <name>org.eclipse.pde.SchemaBuilder</name>
+                       <arguments>
+                       </arguments>
+               </buildCommand>
+       </buildSpec>
+       <natures>
+               <nature>org.eclipse.pde.PluginNature</nature>
+               <nature>org.eclipse.jdt.core.javanature</nature>
+       </natures>
+</projectDescription>
diff --git a/org.simantics.interop.diagram/.settings/org.eclipse.jdt.core.prefs b/org.simantics.interop.diagram/.settings/org.eclipse.jdt.core.prefs
new file mode 100644 (file)
index 0000000..0c68a61
--- /dev/null
@@ -0,0 +1,7 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8
diff --git a/org.simantics.interop.diagram/META-INF/MANIFEST.MF b/org.simantics.interop.diagram/META-INF/MANIFEST.MF
new file mode 100644 (file)
index 0000000..0967fb6
--- /dev/null
@@ -0,0 +1,21 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: Interop Diagram
+Bundle-SymbolicName: org.simantics.interop.diagram
+Bundle-Version: 1.0.0.qualifier
+Automatic-Module-Name: org.simantics.interop.diagram
+Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.13.0",
+ org.simantics.db;bundle-version="1.1.0",
+ org.simantics.db.layer0;bundle-version="1.1.0",
+ org.simantics.layer0;bundle-version="1.1.0",
+ org.simantics.g2d.ontology;bundle-version="1.1.0",
+ org.simantics.diagram.ontology;bundle-version="2.2.0",
+ org.simantics.structural.ontology;bundle-version="1.2.0",
+ org.simantics.modeling.ontology;bundle-version="1.2.0",
+ org.simantics;bundle-version="1.0.0",
+ org.simantics.g2d;bundle-version="1.1.1",
+ org.simantics.diagram;bundle-version="1.1.1",
+ org.simantics.structural.ui;bundle-version="1.1.1",
+ org.simantics.structural2;bundle-version="1.1.1"
+Export-Package: org.simantics.interop.diagram
diff --git a/org.simantics.interop.diagram/build.properties b/org.simantics.interop.diagram/build.properties
new file mode 100644 (file)
index 0000000..34d2e4d
--- /dev/null
@@ -0,0 +1,4 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .
diff --git a/org.simantics.interop.diagram/src/org/simantics/interop/diagram/Diagram.java b/org.simantics.interop.diagram/src/org/simantics/interop/diagram/Diagram.java
new file mode 100644 (file)
index 0000000..5695798
--- /dev/null
@@ -0,0 +1,711 @@
+package org.simantics.interop.diagram;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.Stack;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RequestProcessor;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;
+import org.simantics.db.common.request.ResourceRead;
+import org.simantics.db.common.utils.OrderedSetUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ManyObjectsForFunctionalRelationException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.exception.ServiceException;
+import org.simantics.db.layer0.adapter.Template;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
+import org.simantics.g2d.page.DiagramDesc;
+import org.simantics.layer0.Layer0;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.operation.Layer0X;
+import org.simantics.simulation.ontology.SimulationResource;
+import org.simantics.structural.stubs.StructuralResource2;
+import org.simantics.utils.datastructures.Arrays;
+import org.simantics.utils.page.PageDesc;
+
+
+/**
+ * @author Marko Luukkainen
+ */
+public abstract class Diagram<T extends Symbol> {
+       
+       public static boolean DO_NO_MIX_SECTION_NAMES = false;
+       public static boolean USE_MERGE_CONNECTS = true;
+       
+       private Resource composite;
+       private Resource diagram;
+               
+       private Map<Resource,Integer> indexMap  = new HashMap<Resource, Integer>();
+       
+       private Map<Resource,T> elementToSymbolMap = new HashMap<Resource, T>();
+       
+       private Map<Resource,Diagram<T>> compositeToDiagramMap = new HashMap<Resource, Diagram<T>>();
+       
+       protected Diagram(ReadGraph g, Resource composite, Resource diagram) throws DatabaseException {
+               this.composite = composite;
+               this.diagram = diagram;
+       }
+       
+       protected abstract Diagram<T> construct(ReadGraph g, Resource composite, Resource diagram) throws DatabaseException;
+       protected abstract T constructSymbol(ReadGraph g, Resource element, Resource component) throws DatabaseException;
+       
+       public Resource getComposite() {
+               return composite;
+       }
+       
+       public Resource getDiagram() {
+               return diagram;
+       }
+       
+       
+       public void clearCaches() {
+               for (Diagram<T> d : compositeToDiagramMap.values()) {
+                       for (T s : d.elementToSymbolMap.values())
+                               s.dispose();
+                       d.elementToSymbolMap.clear();
+               }
+               compositeToDiagramMap.clear();
+       }
+       
+       
+       public String generateName(ReadGraph g, Resource type, String name) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               Layer0X l0x = Layer0X.getInstance(g);
+               String prefix = g.getPossibleRelatedValue(type, l0x.HasGeneratedNamePrefix);
+               if (prefix == null || prefix.length() == 0)
+                       prefix = g.getRelatedValue(type, l0.HasName);
+               prefix += "_";          
+               Set<String> reserved = null;
+               if (name != null) {
+                       reserved = getAllModuleNamesForModel(g, composite);
+                       int index = 0;
+                       String realname = name + "_" + prefix;
+                       while (true) {
+                               String toTry = realname + Integer.toString(index);
+                               if (!reserved.contains(toTry))
+                                       break;
+                               index++;
+                       }
+                       realname += Integer.toString(index);
+                       return realname;
+               }
+               Integer index = indexMap.get(type);
+               if (index != null) {
+                       index++;        
+               } else {
+                       if (reserved == null)
+                               reserved = getAllModuleNamesForModel(g, composite);
+                       index = 0;
+                       while (true) {
+                               String toTry = prefix + Integer.toString(index);
+                               if (!reserved.contains(toTry))
+                                       break;
+                               index++;
+                       }
+                       
+               }
+               indexMap.put(type, index);
+               return prefix + index;
+       }
+       
+       private Set<String> getAllModuleNamesForModel(ReadGraph graph, final Resource res) throws DatabaseException {
+
+               Resource model = DiagramUtils.getModel(graph, res);
+               Resource configuration = DiagramUtils.getConfiguration(graph, model);
+               Set<String> names = new HashSet<String>();
+               Collection<Resource> composites = getAllComposites(graph, configuration);
+               for (Resource composite : composites) {
+                       names.addAll(getAllModuleNamesForComposite(graph, composite));
+               }
+               return names;
+       }
+       
+       protected abstract Resource getGraphicalCompositeType(ReadGraph graph) throws DatabaseException;
+       protected abstract Resource getFolderType(ReadGraph graph) throws DatabaseException;
+       
+       @SuppressWarnings("unchecked")
+       private Collection<Resource> getAllComposites(RequestProcessor processor, Resource configuration) throws DatabaseException {
+               return (Set<Resource>)processor.syncRequest(new ResourceRead<Object>(configuration) {
+                       @Override
+                       public Object perform(ReadGraph graph) throws DatabaseException {
+                               Layer0 l0 = Layer0.getInstance(graph);
+                               Set<Resource> composites = new HashSet<Resource>();
+                               Stack<Resource> resources = new Stack<Resource>();
+                               Resource graphicalCompositeType = getGraphicalCompositeType(graph);
+                               Resource folderType = getFolderType(graph);
+                               resources.add(resource);
+                               while (!resources.isEmpty()) {
+                                       Resource r = resources.pop();
+                                       if (graph.isInstanceOf(r, graphicalCompositeType)) {
+                                               composites.add(r);
+                                       } else if (folderType != null && graph.isInstanceOf(r, folderType)){
+                                               resources.addAll(graph.getObjects(r, l0.ConsistsOf));
+                                       }
+                               }
+                               return composites;
+                       }
+               }, TransientCacheListener.instance());
+       }
+       
+       @SuppressWarnings("unchecked")
+       private Set<String> getAllModuleNamesForComposite(RequestProcessor processor, Resource composite) throws DatabaseException {
+               return (Set<String>)processor.syncRequest(new ResourceRead<Object>(composite) {
+                       @Override
+                       public Object perform(ReadGraph graph) throws DatabaseException {
+                               Layer0 l0 = Layer0.getInstance(graph);
+                               Set<String> names = new HashSet<String>();
+                               Collection<Resource> components = graph.getObjects(resource, l0.ConsistsOf);
+                               for (Resource component : components) {
+                                       String n = graph.getPossibleRelatedValue(component, l0.HasName, Bindings.STRING);
+                                       if (n != null)
+                                               names.add(n);
+                               }
+                               return names;
+                       }
+               }, TransientCacheListener.instance());
+               
+       }
+       
+       public Diagram<T> createDiagram(WriteGraph g,String name, Resource compositeType, Resource parent) throws DatabaseException {
+               return createDiagram(g, name, null, null,compositeType, parent);
+       }
+       
+       
+       
+       /**
+        * Creates a new Diagram
+        * @param g
+        * @param name name of the diagram
+        * @param compositeType composite type of the diagram
+        * @param parent resource where diagram is added
+        * @return
+        * @throws DatabaseException
+        */
+       @SuppressWarnings("deprecation")
+       public Diagram<T> createDiagram(WriteGraph g,String name, DiagramDesc desc, Template tpl, Resource compositeType, Resource parent) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               Layer0X l0x = Layer0X.getInstance(g);
+               ModelingResources m = ModelingResources.getInstance(g);
+               
+               // create composite
+               Resource composite = g.newResource();
+               g.claim(composite, l0.InstanceOf, compositeType);
+               
+               // create diagram
+               Resource diagramType = getDiagramFromComposite(g, compositeType);
+               
+               Resource diagram = OrderedSetUtils.create(g, diagramType);
+               
+               g.claim(composite, m.CompositeToDiagram, diagram);
+               
+               // link to parent and set name
+               g.claimLiteral(composite, l0.HasName, name);
+               g.claim(composite, l0.PartOf, parent);
+               
+               // activate mapping
+               Resource mapping = g.newResource();
+        g.claim(mapping, l0.InstanceOf, m.DiagramToCompositeMapping);
+        g.claim(diagram, l0x.HasTrigger, mapping);
+        
+        if (tpl != null) {
+               Map<String,Object> params = new HashMap<String, Object>();
+               params.put("diagram", diagram);
+               tpl.apply(g, params);
+        }
+        
+        
+        // Make diagram part of a dummy container library attached to the parent
+        // composite if it's not already part of something.
+        // This gives the diagram a proper URI without connecting it directly to the composite with ConsistsOf.
+        // This would cause problems because a diagram is a structural composite/component also.
+        g.claimLiteral(diagram, l0.HasName, name, Bindings.STRING);
+        Resource container = g.newResource();
+        g.claim(container, l0.InstanceOf, null, l0.Library);
+        g.addLiteral(container, l0.HasName, l0.NameOf, l0.String, "__CONTAINER__", Bindings.STRING);
+        g.claim(container, l0.ConsistsOf, diagram);
+        g.claim(composite, l0.ConsistsOf, container);
+        
+        if (desc != null)
+               DiagramGraphUtil.setDiagramDesc(g, diagram, desc);
+               
+               Diagram<T> diag = construct(g, composite, diagram);
+               diag.compositeToDiagramMap = compositeToDiagramMap;
+               compositeToDiagramMap.put(composite, diag);
+               return diag;
+       }
+       
+       public Diagram<T> fromExisting(ReadGraph g, Resource diagram) throws DatabaseException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               StructuralResource2 s = StructuralResource2.getInstance(g);
+               Resource composite = null;
+               if (g.isInstanceOf(diagram, s.Composite)) {
+                       composite = diagram;
+                       diagram = g.getPossibleObject(composite, m.CompositeToDiagram);
+                       if (diagram == null)
+                               return null;
+               } else {
+                       composite = g.getPossibleObject(diagram, m.DiagramToComposite);
+                       if (composite == null)
+                               return null;
+               }
+               
+               Diagram<T> diag = compositeToDiagramMap.get(composite);
+               if (diag != null)
+                       return diag;
+               
+               diag =  construct(g,composite, diagram);
+               diag.compositeToDiagramMap = compositeToDiagramMap;
+               compositeToDiagramMap.put(composite, diag);
+               return diag;
+       }
+       
+       
+       
+       
+       
+       /**
+        * Returns diagram type from composite type
+        * @param g
+        * @param compositeType
+        * @return diagram type
+        * @throws NoSingleResultException
+        * @throws ManyObjectsForFunctionalRelationException
+        * @throws ServiceException
+        */
+       private static Resource getDiagramFromComposite(ReadGraph g, Resource compositeType) throws DatabaseException {
+               ModelingResources m  = ModelingResources.getInstance(g);
+               Collection<Resource> diagramTemplates = g.getAssertedObjects(compositeType, m.HasModelingTemplate);
+               for (Resource diagramTemplate : diagramTemplates) {
+                       Resource diagramType = g.getPossibleObject(diagramTemplate, m.HasDiagramType);
+                       if (diagramType != null)
+                               return diagramType;
+                               
+               }
+               throw new RuntimeException("Cannot find diagramType for composite " + compositeType);
+       }
+       
+       
+
+       
+       /**
+        * Adds new symbol to a diagram
+        * @param g
+        * @param symbolType
+        * @return
+        * @throws DatabaseException
+        */
+       public T addSymbol(WriteGraph g, Resource symbolType) throws DatabaseException {
+               return addSymbol(g, symbolType, 0, 0);
+       }
+       
+       /**
+        * Adds new symbol to a diagram
+        * @param g
+        * @param symbolType
+        * @param name
+        * @return
+        * @throws DatabaseException
+        */
+       public T addSymbol(WriteGraph g, Resource symbolType, String name) throws DatabaseException {
+               return addSymbol(g, symbolType, name, 0, 0);
+       }
+       
+       /**
+        * Adds new symbol to a diagram
+        * @param g
+        * @param diagramConf Diagram configuration
+        * @param symbolType type of the new symbol
+        * @param x
+        * @param y
+        * @return configuration of the new Symbol
+        * @throws DatabaseException
+        */
+       public T addSymbol(WriteGraph g, Resource symbolType, double x, double y) throws DatabaseException {
+               return addSymbol(g, symbolType,null,x,y);
+       }
+       
+       /**
+        * Adds new symbol to a diagram
+        * @param g
+        * @param elementType
+        * @param name
+        * @param x
+        * @param y
+        * @return
+        * @throws DatabaseException
+        */
+       public T addSymbol(WriteGraph g, Resource elementType, String name, double x, double y) throws DatabaseException {
+               if (elementType == null)
+                       throw new NullPointerException("Element type is null");
+               Layer0 l0 = Layer0.getInstance(g);
+
+               DiagramResource d = DiagramResource.getInstance(g);
+               ModelingResources m = ModelingResources.getInstance(g);
+               
+               Resource componentType = null;
+               if (g.isInheritedFrom(elementType, d.DefinedElement))
+                       componentType = Symbol.getComponentTypeFromSymbolType(g, elementType);
+               else {
+                       componentType = elementType;
+                       elementType = Symbol.getSymbolTypeFromComponentType(g,componentType);
+               }
+                       
+               
+               Resource element = g.newResource();
+               g.claim(element, l0.InstanceOf, elementType);
+
+               Resource module = g.newResource();
+               g.claim(module, l0.InstanceOf, componentType);
+               
+               g.claim(module, m.ComponentToElement, element);
+               g.claim(module, m.Mapped, module);
+
+               String id = generateName(g, componentType, name);
+               g.claimLiteral(module, l0.HasName, id);
+               g.claimLiteral(element, l0.HasName, id);
+               
+               OrderedSetUtils.add(g, this.diagram, element);
+               g.claim(this.diagram, l0.ConsistsOf, element);
+               g.claim(this.composite, l0.ConsistsOf, module);
+               
+               T s =  constructSymbol(g, element, module);
+               s.setSymbolTranslation(g, x, y);
+               
+               elementToSymbolMap.put(element, s);
+               return s;
+       }
+       
+       /**
+        * Returns a Symbol for given resource.
+        * @param g
+        * @param element Element or Component of the Symbol.
+        * @return
+        * @throws ManyObjectsForFunctionalRelationException
+        * @throws ServiceException
+        * @throws NoSingleResultException
+        */
+       public T getSymbol(ReadGraph g, Resource element) throws DatabaseException {
+               ModelingResources mr = ModelingResources.getInstance(g);
+               DiagramResource dr = DiagramResource.getInstance(g);
+               if (g.isInstanceOf(element, dr.Element))
+                       return getSymbol(g, element, g.getPossibleObject(element, mr.ElementToComponent));
+               else
+                       return getSymbol(g, g.getSingleObject(element, mr.ComponentToElement), element);
+       }
+       
+       /**
+        * Returns a Symbol for given resource.
+        * @param g
+        * @param element Element Resource of the Symbol.
+        * @param component Component  Resource of the symbol. 
+        * @return
+        */
+       public T getSymbol(ReadGraph g, Resource element, Resource component) throws DatabaseException {
+               T s = elementToSymbolMap.get(element);
+               if (s == null) {
+                       // TODO : check that symbol actually belongs to this diagram
+                       s = constructSymbol(g, element, component);
+                       elementToSymbolMap.put(element, s);
+               } else {
+                       if (s.component == null)
+                               s.component = component;
+                       else if (!s.component.equals(component)) {
+                               // FIXME : ?
+                               return constructSymbol(g, element, component);
+                       }
+               }
+               return s;
+       }
+       
+       /**
+        *  Adds new element to a diagram
+        * @param g
+        * @param symbolType type of the element.
+        * @param x
+        * @param y
+        * @return
+        * @throws DatabaseException
+        */
+       public T addElement(WriteGraph g, Resource symbolType, double x, double y) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+
+               Resource element = g.newResource();
+               g.claim(element, l0.InstanceOf, symbolType);
+                               
+               DiagramUtils.addElement(g, this, element);
+               
+               T s = constructSymbol(g,element,null);
+               
+               s.setSymbolTranslation(g, x, y);
+               
+               elementToSymbolMap.put(element, s);
+               return s;
+       }
+       
+       public T getSingleSymbol(ReadGraph g, String symbolName) throws DatabaseException {
+               List<T> matching = getSymbol(g, symbolName);
+               if (matching.size() == 1)
+                       return matching.get(0);
+               if (matching.size() == 0)
+                       return null;
+               throw new NoSingleResultException("There are multiple symbols with name '" + symbolName);
+       }
+       
+       public T getPossibleSymbol(ReadGraph g, String symbolName) throws DatabaseException {
+               List<T> matching = getSymbol(g, symbolName);
+               if (matching.size() == 1)
+                       return matching.get(0);
+               return null;
+       }
+       
+       /**
+        * Returns all symbols on the diagram
+        * @param g
+        * @return
+        * @throws DatabaseException
+        */
+       public List<T> getSymbols(ReadGraph g) throws DatabaseException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               List<T> matching = new ArrayList<T>();
+               for (Resource element : OrderedSetUtils.toList(g, diagram)) {
+                       Resource component = g.getPossibleObject(element, m.ElementToComponent);
+                       matching.add(getSymbol(g,element, component));
+               }
+               return matching;
+       }
+       
+       /**
+        * Returns symbols that have matching name.
+        * 
+        * Prioritizes L0.HasLabel over L0.HasName (If symbol has label, it is used for comparison).
+        * 
+        * ';' character acts as a splitter, allowing input parameter and a label contain multiple identifiers.
+        *
+        * All the splits  
+        * 
+        * @param g
+        * @param symbolName
+        * @return
+        * @throws DatabaseException
+        */
+       public List<T> getSymbol(ReadGraph g, String symbolName) throws DatabaseException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               Layer0 b = Layer0.getInstance(g);
+               List<T> matching = new ArrayList<T>();
+               
+               String splitId[] = symbolName.split(";");
+               
+               for (Resource element : OrderedSetUtils.toList(g, diagram)) {
+                       Resource component = g.getPossibleObject(element, m.ElementToComponent);
+                       if (component == null)
+                               component = g.getPossibleObject(element, m.HasParentComponent);
+                       if (component == null)
+                               continue;
+                       String label = g.getPossibleRelatedValue(component, b.HasLabel);
+                       String name = g.getRelatedValue(component, b.HasName);
+                       if (label != null) {
+                               String splitLabel[] = label.split(";");
+                               
+                               boolean match = true;
+                               for (int i = 0; i < splitId.length; i++) {
+                                       if(!Arrays.contains(splitLabel, splitId[i])) {
+                                               match = false;
+                                               break;
+                                       }
+                               }
+                               if (match) {
+                                       matching.add(getSymbol(g,element, component));
+                               } else {
+                                       if (label.equals(symbolName) || name.equals(symbolName)) {
+                                               matching.add(getSymbol(g,element, component));
+                                               
+                                       }
+                               }
+                               
+                       } else {
+                               for (String split : splitId) {
+                                       if (name.equals(split)) {
+                                               matching.add(getSymbol(g,element, component));
+                                       }
+                               }
+                               
+                       }
+               }
+               return matching;
+       }
+       
+       /**
+        * Returns a single symbol matching given name and type. If matching symbol cannot be found, returns null.
+        * Throws a NoSingleResultException if the re are multiple symbols matching the criteria.
+        * 
+        * @param g
+        * @param symbolName
+        * @param symbolType
+        * @return 
+        * @throws DatabaseException
+        */
+       public T getSingleSymbol(ReadGraph g, String symbolName, Resource symbolType) throws DatabaseException {
+               List<T> matching = getSymbol(g, symbolName, symbolType);
+               if (matching.size() == 1)
+                       return matching.get(0);
+               if (matching.size() == 0)
+                       return null;
+               throw new NoSingleResultException("There are multiple symbols with name '" + symbolName + "' and type " + symbolType);
+       }
+       
+       public T getPossibleSymbol(ReadGraph g, String symbolName, Resource symbolType) throws DatabaseException {
+               List<T> matching = getSymbol(g, symbolName, symbolType);
+               if (matching.size() == 1)
+                       return matching.get(0);
+               return null;
+       }
+       
+       /**
+        * Returns symbols matching given name and type. 
+        * 
+        * @param g
+        * @param symbolName
+        * @param symbolType
+        * @return 
+        * @throws DatabaseException
+        */
+       public List<T> getSymbol(ReadGraph g, String symbolName, Resource symbolType) throws DatabaseException {
+
+               List<T> nameMatching = getSymbol(g, symbolName);
+               List<T> matching = new ArrayList<T>();
+               for (T s : nameMatching) {
+                       if ((g.isInstanceOf(s.getElement(), symbolType)||
+                                        g.isInstanceOf(s.getComponent(), symbolType))) {
+                                       matching.add(s);
+                               }
+               }
+               return matching;
+       }
+       
+       public Symbol getFlag(ReadGraph g, Resource flagType, String symbolName, Resource symbolType) throws DatabaseException {
+               Layer0 b = Layer0.getInstance(g);
+               DiagramResource dr = DiagramResource.getInstance(g);
+               List<Symbol> matching = new ArrayList<Symbol>();
+               for (Resource flag : OrderedSetUtils.toList(g, diagram)) {
+                       if (!g.isInstanceOf(flag, dr.Flag))
+                               continue;
+                       if (!g.getSingleObject(flag, dr.HasFlagType).equals(flagType))
+                               continue;
+                       Symbol flagSymbol = getSymbol(g,flag, null);
+
+                       Symbol connectedSymbol = flagSymbol.getDiagramSingleConnected(g, dr.Flag_ConnectionPoint);
+                       Resource component = connectedSymbol.getComponent();
+                       if (component == null)
+                               continue;
+                       String label = g.getPossibleRelatedValue(component, b.HasLabel);
+                       String name = g.getRelatedValue(component, b.HasName);
+                       if (label != null) {
+                               String splitId[] = symbolName.split(";");
+                               if (splitId.length > 1) {
+                                       String splitLabel[] = label.split(";");
+                                       boolean match = true;
+                                       for (int i = 0; i < splitId.length; i++) {
+                                               if(!Arrays.contains(splitLabel, splitId[i])) {
+                                                       match = false;
+                                                       break;
+                                               }
+                                       }
+                                       if (match) {
+                                               if (g.isInstanceOf(connectedSymbol.getElement(), symbolType)||
+                                                       g.isInstanceOf(component, symbolType)) {
+                                                       matching.add(getSymbol(g,flag, null));
+                                               }
+                                               
+                                       }
+                               } else {
+                                       if (label.equals(symbolName) || name.equals(symbolName)) {
+                                               if (g.isInstanceOf(connectedSymbol.getElement(), symbolType)||
+                                                       g.isInstanceOf(component, symbolType)) {
+                                                       matching.add(getSymbol(g,flag, null));
+                                               }
+                                               
+                                       }
+                               }
+                               
+                       } else {
+                               if (name.equals(symbolName)) {
+                                       if (g.isInstanceOf(connectedSymbol.getElement(), symbolType)||
+                                                       g.isInstanceOf(component, symbolType)) {
+                                               matching.add(getSymbol(g,flag, null));
+                                       }
+                               }
+                               
+                       }
+               }
+               if (matching.size() == 1)
+                       return matching.get(0);
+               if (matching.size() == 0)
+                       return null;
+               throw new NoSingleResultException("There are multiple flags connecting symbol with name '" + symbolName + "' and type " + symbolType);
+               
+       }
+       
+       public PageDesc getPageDesc(ReadGraph g) throws DatabaseException {
+               PageDesc pDesc = DiagramGraphUtil.getPageDesc(g, diagram, PageDesc.DEFAULT);
+               return pDesc;
+       }
+       
+       @Override
+       public boolean equals(Object o) {
+               if (o == null)
+                       return false;
+               if (this.getClass() != o.getClass())
+                       return false;
+               Diagram other = (Diagram)o;
+               return diagram.equals(other.diagram);
+       }
+       
+       @Override
+       public int hashCode() {
+               return diagram.hashCode();
+       }
+       
+       void merge(Symbol to, Symbol from) {
+               Resource element = from.getElement();
+               for (Symbol s : elementToSymbolMap.values()) {
+                       if (s.element.equals(element)) {
+                               s.element = to.element;
+                               s.component = to.component;
+                       }
+               }
+               from.element = to.element;
+               from.component = to.component;
+       }
+       
+       /**
+        * Returns a model containing the diagram.
+        * @param g
+        * @return
+        * @throws DatabaseException
+        */
+       public Resource getModel(ReadGraph g) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               SimulationResource sim = SimulationResource.getInstance(g);
+               Resource r = composite;
+               while (true) {
+                       Resource parent = g.getSingleObject(r, l0.PartOf);
+                       if (g.isInstanceOf(parent, sim.Model))
+                               return parent;
+                       r = parent;
+               }
+       }
+       
+       
+       
+}
+
diff --git a/org.simantics.interop.diagram/src/org/simantics/interop/diagram/DiagramUtils.java b/org.simantics.interop.diagram/src/org/simantics/interop/diagram/DiagramUtils.java
new file mode 100644 (file)
index 0000000..29f3e21
--- /dev/null
@@ -0,0 +1,90 @@
+package org.simantics.interop.diagram;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.common.utils.OrderedSetUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+import org.simantics.simulation.ontology.SimulationResource;
+
+/**
+ * 
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
+ *
+ */
+public class DiagramUtils {
+
+       
+       public static void addElement(WriteGraph g, Diagram diagram, Resource element) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               OrderedSetUtils.add(g, diagram.getDiagram(), element);
+               generateName(g, diagram, element);
+               g.claim(diagram.getDiagram(), l0.ConsistsOf, element);
+       }
+       
+       public static void addElementFirst(WriteGraph g, Diagram diagram, Resource element) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               OrderedSetUtils.addFirst(g, diagram.getDiagram(), element);
+               generateName(g, diagram, element);
+               g.claim(diagram.getDiagram(), l0.ConsistsOf, element);
+       }
+       
+       public static void generateName(WriteGraph g, Diagram diagram, Resource element) throws DatabaseException {
+               Layer0 l0 = Layer0.getInstance(g);
+               if (g.getPossibleRelatedValue(element, l0.HasName) != null)
+                       return;
+               Resource type = g.getSingleType(element);
+               
+               String name = NameUtils.findFreshEscapedName(g, (String)g.getRelatedValue(type, l0.HasName), diagram.getDiagram(),l0.ConsistsOf);
+               g.claimLiteral(element, l0.HasName, name);
+       }
+       
+       
+       public static Resource createRelation(WriteGraph w, Layer0 b, Resource superrelation) throws DatabaseException {
+        Resource relation = w.newResource();
+        Resource invRelation = w.newResource();
+        w.claim(relation, b.InverseOf, invRelation);
+        w.claim(relation, b.ConsistsOf, invRelation);
+        w.claimLiteral(invRelation, b.HasName, "Inverse");
+        
+        w.claim(relation, b.SubrelationOf, b.SuperrelationOf, superrelation);
+        w.claim(invRelation, b.SubrelationOf, b.SuperrelationOf, w.getInverse(superrelation));
+        
+        //w.claim(relation, b.InstanceOf, ab.ReferenceProvider);
+        return relation;
+    }
+       
+       public static Resource createRelation(WriteGraph w, Layer0 b, Resource... superrelation) throws DatabaseException {
+        Resource relation = w.newResource();
+        Resource invRelation = w.newResource();
+        w.claim(relation, b.InverseOf, invRelation);
+        w.claim(relation, b.ConsistsOf, invRelation);
+        w.claimLiteral(invRelation, b.HasName, "Inverse");
+        for (Resource rel : superrelation) {
+               w.claim(relation, b.SubrelationOf, null, rel);
+               Resource inv = w.getPossibleInverse(rel);
+               if (inv != null)
+                       w.claim(invRelation, b.SubrelationOf, null, inv);
+        } 
+        return relation;
+    }
+       
+       public static Resource getModel(ReadGraph graph, Resource res) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               SimulationResource sim = SimulationResource.getInstance(graph);
+               Resource r = res;
+               while (r != null) {
+                       if (graph.isInstanceOf(r, sim.Model))
+                               return r;
+                       r = graph.getPossibleObject(r, l0.PartOf);
+               }
+               return r;
+       }
+       
+       public static Resource getConfiguration(ReadGraph graph, Resource model) throws DatabaseException {
+               SimulationResource sim = SimulationResource.getInstance(graph);
+               return graph.getSingleObject(model, sim.HasConfiguration);
+       }
+}
diff --git a/org.simantics.interop.diagram/src/org/simantics/interop/diagram/Symbol.java b/org.simantics.interop.diagram/src/org/simantics/interop/diagram/Symbol.java
new file mode 100644 (file)
index 0000000..22160aa
--- /dev/null
@@ -0,0 +1,1245 @@
+package org.simantics.interop.diagram;
+
+import java.awt.geom.AffineTransform;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.utils.Logger;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.common.utils.OrderedSetUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ManyObjectsForFunctionalRelationException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.exception.ServiceException;
+import org.simantics.db.exception.ValidationException;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.diagram.stubs.G2DResource;
+import org.simantics.layer0.Layer0;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.structural.stubs.StructuralResource2;
+import org.simantics.structural2.utils.StructuralUtils;
+
+
+
+/**
+ * @author Marko Luukkainen
+ */
+public abstract class Symbol {
+       
+       private static boolean USE_UNRELIABLE_CONNECT = false;
+       private static boolean PREVENT_SELF_CONNECTIONS = false;
+       
+       private Diagram diagram;
+       Resource element;
+       Resource component;
+       
+       /**
+        * Use Diagram.getSymbol() to get Symbols.
+        * @param diagram
+        * @param element
+        * @param component
+        */
+       public Symbol(Diagram diagram, Resource element, Resource component) {
+               assert(diagram != null);
+               assert(element != null);
+               this.diagram = diagram;
+               this.element = element;
+               this.component = component;
+       }
+       
+       public Diagram getDiagram() {
+               return diagram;
+       }
+       
+       public Resource getComponent() {
+               return component;
+       }
+       
+       public Resource getElement() {
+               return element;
+       }
+       
+       /**
+        * Connects two Symbols, chooses connection type automatically.
+        * @param g
+        * @param symbolConf2 other symbol.
+        * @param componentConRel1 symbol's terminal relation.
+        * @param componentConRel2 other symbol's terminal relation.
+        * @return SymbolConnetionData instance describing the connection. Return value is never null.
+        * @throws DatabaseException on database failure.
+        */
+       public SymbolConnectionData connect(WriteGraph g,  Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2) throws DatabaseException {
+               return connect(g, symbolConf2, componentConRel1, componentConRel2, false);
+       }
+       
+       protected Collection<Resource> getConnectionRel(ReadGraph g, Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, Collection<Resource> matching) throws DatabaseException {
+               return matching;
+       }
+       
+       protected  SymbolConnectionData customConnect(WriteGraph g, Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, Resource connType) throws DatabaseException {
+               return null;
+       }
+       
+       /**
+        * Connects two Symbols, chooses connection type automatically.
+        * @param g
+        * @param symbolConf2 other symbol.
+        * @param componentConRel1 symbol's terminal relation.
+        * @param componentConRel2 other symbol's terminal relation.
+        * @param forceFlag creates flag connection even if symbols are on the same diagram.
+        * @return SymbolConnetionData instance describing the connection. Return value is never null.
+        * @throws DatabaseException on database failure.
+        */
+       public SymbolConnectionData connect(WriteGraph g,  Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, boolean forceFlag) throws DatabaseException {
+               if (this.equals(symbolConf2)) {
+                       if (PREVENT_SELF_CONNECTIONS) {
+                               String err = "Preventing connection to self: " + component + " " + NameUtils.getSafeName(g, component) + " terminals: " + g.getPossibleURI(componentConRel1) + " "+ componentConRel1 + " " + g.getPossibleURI(componentConRel2) + " "+ componentConRel2;
+                               Logger.defaultLogError(err);
+                               return new ConnectionErrorImpl(err);
+                       }
+                       if (componentConRel1.equals(componentConRel2)) {
+                               String err = "Preventing connection to self: " + component + " " + NameUtils.getSafeName(g, component) + " terminals: " + g.getPossibleURI(componentConRel1) + " "+ componentConRel1 + " " + g.getPossibleURI(componentConRel2) + " "+ componentConRel2;
+                               Logger.defaultLogError(err);
+                               return new ConnectionErrorImpl(err);
+                       }
+               }
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               Collection<Resource> connType1 = g.getObjects(componentConRel1, sr.AllowsConnectionType);
+               Collection<Resource> connType2 = g.getObjects(componentConRel2, sr.AllowsConnectionType);
+               Collection<Resource> matching = new HashSet<Resource>();
+               for (Resource r : connType2) {
+                       if (connType1.contains(r))
+                               matching.add(r);
+               }
+               if (matching.size() > 1) {
+                       matching = getConnectionRel(g, symbolConf2, componentConRel1, componentConRel2, matching);
+               }
+               Resource usedConnType = null;
+               if (matching.size() != 1) {
+                       String err;
+                       if (USE_UNRELIABLE_CONNECT) {
+                               err = "Unreliable connect " + component + " " + NameUtils.getSafeName(g, component) + " to " + symbolConf2.component + " " + NameUtils.getSafeName(g, symbolConf2.component) + " cannot find proper connection type, using Name Reference";
+                       } else {
+                               err = "Unable to connect " + component + " " + NameUtils.getSafeName(g, component) + " to " + symbolConf2.component + " " + NameUtils.getSafeName(g, symbolConf2.component) + " cannot find proper connection type for terminals " + g.getPossibleURI(componentConRel1) + " "+ componentConRel1 + " " + g.getPossibleURI(componentConRel2) + " "+ componentConRel2;
+                       }
+                       Logger.defaultLogInfo(err);
+                       return new ConnectionErrorImpl(err);
+               } else {
+                       usedConnType = matching.iterator().next();
+               }
+               
+               SymbolConnectionData data = customConnect(g, symbolConf2, componentConRel1, componentConRel2, usedConnType);
+               if (data == null) {
+                       if (!forceFlag && diagram.equals(symbolConf2.diagram))
+                               return _connect(g, symbolConf2, componentConRel1, componentConRel2,usedConnType);
+                       else
+                               return connectWithFlag(g,  symbolConf2, componentConRel1, componentConRel2,usedConnType);
+               } else {
+                       return data;
+               }
+       }
+       
+       /**
+        * Connects two symbols with chosen connection type. Does not work with signal connections. 
+        * @param g
+        * @param symbolConf2 other symbol.
+        * @param componentConRel1 symbol's terminal relation.
+        * @param componentConRel2 other symbol's terminal relation.
+        * @param connectionType used connection type.
+        * @return SymbolConnetionData instance describing the connection. Return value is never null.
+        * @throws DatabaseException on database failure.
+        */
+       public SymbolConnectionData connect(WriteGraph g,  Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, Resource connectionType) throws DatabaseException {
+               if (diagram.equals(symbolConf2.diagram))
+                       return _connect(g, symbolConf2, componentConRel1, componentConRel2, connectionType);
+               else
+                       return connectWithFlag(g,  symbolConf2, componentConRel1, componentConRel2, connectionType);
+       }
+       
+       protected SymbolConnectionData connectToExisting(WriteGraph g, Symbol symbolConf2, Symbol current, Resource componentConRel1, Resource componentConRel2, Resource connectorType, boolean firstSame) throws DatabaseException {
+               return new ConnectionErrorImpl("Symbol is already connected");
+       }
+       
+       private SymbolConnectionData _connect(WriteGraph g, Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, Resource connectorType) throws DatabaseException {
+               Layer0 b = Layer0.getInstance(g);
+               StructuralResource2 s = StructuralResource2.getInstance(g);
+               DiagramResource d = DiagramResource.getInstance(g);
+               ModelingResources m = ModelingResources.getInstance(g);
+               
+               
+               if (g.isInstanceOf(componentConRel1, b.FunctionalRelation) && getSingleConnected(g, componentConRel1) != null) {
+                       Symbol current = getSingleConnected(g, componentConRel1);
+                       if (current.component.equals(symbolConf2.component))
+                               return new SymbolExistsImpl();
+                       
+                       return connectToExisting(g, symbolConf2, current, componentConRel1, componentConRel2, connectorType, true);
+               }
+               if (g.isInstanceOf(componentConRel2, b.FunctionalRelation) && symbolConf2.getSingleConnected(g, componentConRel2) != null) {
+                       Symbol current = symbolConf2.getSingleConnected(g, componentConRel2);
+                       if (current.component.equals(component))
+                               return new SymbolExistsImpl();
+                       return connectToExisting(g, symbolConf2, current, componentConRel1, componentConRel2, connectorType, false);
+                       
+               }
+               
+               // connection object in module level
+               Resource moduleConnection = g.newResource();
+               g.claim(moduleConnection, b.InstanceOf, s.Connection);
+               
+               // connect the modules
+               
+               g.claim(component, componentConRel1, moduleConnection);
+               g.claim(symbolConf2.component, componentConRel2, moduleConnection);
+               
+               // connection object in diagram level
+               Resource diagramConnection = g.newResource();
+               g.claim(diagramConnection, b.InstanceOf, d.RouteGraphConnection);
+               DiagramUtils.addElementFirst(g, diagram, diagramConnection);
+               
+               g.claim(diagramConnection, s.HasConnectionType, connectorType);
+               
+               // Relation from element1 to connector1
+               Resource isConnected1 = getDiagramConnectionRelation(g, element, componentConRel1);
+               
+               // connector1
+               Resource connector1 = g.newResource();
+               g.claim(connector1, b.InstanceOf, d.Connector);
+               g.claim(element, isConnected1, connector1);
+               g.claim(diagramConnection, d.HasPlainConnector, connector1);
+               
+               // Relation from element2 to connector2
+               Resource isConnected2 = getDiagramConnectionRelation(g, symbolConf2.element, componentConRel2);
+               
+               // connector2
+               Resource connector2 = g.newResource();
+               g.claim(connector2, b.InstanceOf, d.Connector);
+               g.claim(symbolConf2.element, isConnected2, connector2);
+               g.claim(diagramConnection, d.HasArrowConnector, connector2);
+               
+               // connect connectors
+               g.claim(connector1, d.AreConnected, connector2);
+
+               g.claim(moduleConnection, m.ConnectionToDiagramConnection, diagramConnection);
+               
+               return new ConnectorDataImpl(diagramConnection);
+       }
+       
+       
+       private SymbolConnectionData connectWithFlag(WriteGraph g,  Symbol symbolConf2, Resource componentConRel1, Resource componentConRel2, Resource connectionType) throws DatabaseException {
+               
+               Diagram diagram2 = symbolConf2.diagram;
+               Layer0 l0 = Layer0.getInstance(g);
+               StructuralResource2 s = StructuralResource2.getInstance(g);
+               DiagramResource d = DiagramResource.getInstance(g);
+               ModelingResources m = ModelingResources.getInstance(g);
+               
+               if (g.isInstanceOf(componentConRel1, l0.FunctionalRelation) && getSingleConnected(g, componentConRel1) != null) {
+                       String err = "Cannot flag connect " + component + " " + NameUtils.getSafeName(g, component) + " to " + symbolConf2.component + " " + NameUtils.getSafeName(g, symbolConf2.component) + " since the first terminal is already reserved";
+                       Logger.defaultLogError(err);
+                       return new ConnectionErrorImpl(err);
+               }
+               if (g.isInstanceOf(componentConRel2, l0.FunctionalRelation) && symbolConf2.getSingleConnected(g, componentConRel2) != null) {
+                       String err = "Cannot flag connect " + component + " " + NameUtils.getSafeName(g, component) + " to " + symbolConf2.component + " " + NameUtils.getSafeName(g, symbolConf2.component) + " since the second terminal is already reserved";
+                       Logger.defaultLogError(err);
+                       return new ConnectionErrorImpl(err);
+               }
+       
+               double t = 20.0;
+               double[] t1 =  getSymbolTranslation(g);
+               double[] t2 =  symbolConf2.getSymbolTranslation(g);
+               
+               Symbol flag1 = diagram.addElement(g, d.Flag, t1[0]+t, t1[1]);
+               Symbol flag2 = diagram2.addElement(g, d.Flag, t2[0]-t, t2[1]);
+               
+               Resource connectionJoin = g.newResource();
+               g.claim(connectionJoin, l0.InstanceOf, s.ConnectionJoin);
+               g.claim(diagram.getComposite(), s.HasConnectionJoin, connectionJoin);
+               g.claim(diagram2.getComposite(), s.HasConnectionJoin, connectionJoin);
+               
+               Resource connection1 = g.newResource();
+               g.claim(connection1, l0.InstanceOf, s.Connection);
+               
+               Resource connection2 = g.newResource();
+               g.claim(connection2, l0.InstanceOf, s.Connection);
+               
+               g.claim(component, componentConRel1, connection1);
+               g.claim(symbolConf2.component, componentConRel2, connection2);
+               g.claim(connection1, s.IsJoinedBy, connectionJoin);
+               g.claim(connection2, s.IsJoinedBy, connectionJoin);
+               
+               g.claim(flag1.element, d.FlagIsJoinedBy, connectionJoin);
+               g.claim(flag2.element, d.FlagIsJoinedBy, connectionJoin);
+               
+               Resource diagConnection1 = g.newResource();
+               g.claim(diagConnection1, l0.InstanceOf, d.RouteGraphConnection);
+               DiagramUtils.addElementFirst(g, diagram, diagConnection1);
+               g.claim(diagConnection1, s.HasConnectionType, connectionType);
+
+               Resource diagConnection2 = g.newResource();
+               g.claim(diagConnection2, l0.InstanceOf, d.RouteGraphConnection);
+               DiagramUtils.addElementFirst(g, diagram2, diagConnection2);
+               g.claim(diagConnection2, s.HasConnectionType, connectionType);
+               
+               g.claim(connection1, m.ConnectionToDiagramConnection, diagConnection1);
+               g.claim(connection2, m.ConnectionToDiagramConnection, diagConnection2);
+               
+               // Relation from element1 to connector1
+               Resource isConnected1 = getDiagramConnectionRelation(g, element, componentConRel1);
+               
+               // connector1
+               Resource connector1_1 = g.newResource();
+               g.claim(connector1_1, l0.InstanceOf, d.Connector);
+               g.claim(element, isConnected1, connector1_1);
+               g.claim(diagConnection1, d.HasPlainConnector, connector1_1);
+               
+               Resource connector1_2 = g.newResource();
+               g.claim(connector1_2, l0.InstanceOf, d.Connector);
+               g.claim(flag1.element, d.Flag_ConnectionPoint, connector1_2);
+               g.claim(diagConnection1, d.HasArrowConnector, connector1_2);
+               
+               g.claim(connector1_1, d.AreConnected, connector1_2);
+               
+               // Relation from element2 to connector2
+               Resource isConnected2 = getDiagramConnectionRelation(g, symbolConf2.element, componentConRel2);
+               
+               // connector1
+               Resource connector2_1 = g.newResource();
+               g.claim(connector2_1, l0.InstanceOf, d.Connector);
+               g.claim(flag2.element, d.Flag_ConnectionPoint, connector2_1);
+               g.claim(diagConnection2, d.HasPlainConnector, connector2_1);
+               
+               Resource connector2_2 = g.newResource();
+               g.claim(connector2_2, l0.InstanceOf, d.Connector);
+               g.claim(symbolConf2.element, isConnected2, connector2_2);
+               g.claim(diagConnection2, d.HasArrowConnector, connector2_2);
+               
+               g.claim(connector2_1, d.AreConnected, connector2_2);
+               
+               return new FlagConnectionDataImpl(flag1, flag2, diagConnection1, diagConnection2);
+       }
+       
+       /**
+        * Returns diagram connection relation for an element and its component connection relation
+        * @param g
+        * @param element
+        * @param componentConnRel
+        * @return
+        * @throws ServiceException
+        * @throws NoSingleResultException
+        * @throws ValidationException 
+        */
+       public static Resource getDiagramConnectionRelation(ReadGraph g, Resource element, Resource componentConnRel) throws DatabaseException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               Collection<Resource> diagramConnectionRels = g.getObjects(componentConnRel, m.ConnectionRelationToDiagramConnectionRelation);
+               if (diagramConnectionRels.size() == 1)
+                       return diagramConnectionRels.iterator().next();
+               if (diagramConnectionRels.size() > 1) {
+                       List<Resource> matching = new ArrayList<Resource>();
+                       for (Resource r : diagramConnectionRels) {
+                               if (g.hasStatement(element, r))
+                                       matching.add(r);
+                       }
+                       if (matching.size() == 1)
+                               return matching.get(0);
+               }
+               Layer0 b = Layer0.getInstance(g);
+               Collection<Resource> elementTypes = g.getObjects(element, b.InstanceOf);
+               if (elementTypes.size() != 1)
+                       throw new RuntimeException("Cannot handle multi-instances " + element + " " + NameUtils.getSafeName(g, element));
+               Resource elementType = elementTypes.iterator().next();
+               Collection<Resource> rels = StructuralUtils.getConnectionRelations(g, elementType);
+               if (rels.size() == 1)
+                       return rels.iterator().next();
+               for (Resource rel : rels) {
+                       if (diagramConnectionRels.contains(rel))
+                               return rel;
+               }
+               throw new RuntimeException("Cannot find diagram level relation for relation " + NameUtils.getSafeName(g, componentConnRel) + " " + componentConnRel + " , element " + NameUtils.getSafeName(g, element) + " " + element + " , elementType " + NameUtils.getSafeName(g, elementType) + " " + elementType );
+       }
+       
+       public static Resource getComponentConnectionRelation(ReadGraph g, Resource diagraromConnRel) throws NoSingleResultException, ManyObjectsForFunctionalRelationException, ServiceException {
+               ModelingResources mr = ModelingResources.getInstance(g);
+               return g.getSingleObject(diagraromConnRel, mr.DiagramConnectionRelationToConnectionRelation);
+       }
+       
+//     public static Resource getSymbolRelation(ReadGraph g, Symbol conf, Resource genericRel) throws DatabaseException {
+//             Layer0 b = Layer0.getInstance(g);
+//             if (g.isInstanceOf(conf.element, ab.CalculationLevelReferenceElement)) {
+//                     ModelingResources m = ModelingResources.getInstance(g);
+//                     //return g.getInverse(g.getSingleObject(conf.element, m.HasReferenceRelation));
+//                     return g.getSingleObject(conf.element, m.HasReferenceRelation);
+//             }
+//             
+//             Resource compType = g.getSingleObject(conf.getComponent(), b.InstanceOf);
+//             
+//             for (Resource rel : StructuralUtils.getConnectionRelations(g, compType))
+//                 if (g.isSubrelationOf(rel, genericRel))
+//                     return rel;
+//             return null;
+//     }
+       
+       /**
+        * Returns symbol where given symbol is connected using given relation. Returns null if the symbol is not connected using the relation.
+        * @param g
+        * @param componentConRel
+        * @return
+        * @throws DatabaseException 
+        */
+       public Symbol getSingleConnected(ReadGraph g, Resource componentConRel) throws DatabaseException {
+               Collection<Symbol> symbols = getConnected(g, componentConRel);
+               if (symbols.size() > 1)
+                       throw new NoSingleResultException("Symbol " + component + " is connected more than once using relation " + componentConRel);
+               if (symbols.size() == 1)
+                       return symbols.iterator().next();
+               return null;
+       }
+       
+       public Symbol getSingleConnected(ReadGraph g, Resource componentConRel, Resource otherComponentConRel) throws DatabaseException {
+               Collection<Symbol> symbols = getConnected(g, componentConRel, otherComponentConRel);
+               if (symbols.size() > 1)
+                       throw new NoSingleResultException("Symbol " + component + " is connected more than once using relation " + componentConRel);
+               if (symbols.size() == 1)
+                       return symbols.iterator().next();
+               return null;
+       }
+       
+       public Collection<Symbol> getConnected(ReadGraph g, Resource componentConRel, Resource otherComponentConRel) throws DatabaseException {
+               assert(componentConRel != null);
+               Layer0 l0 = Layer0.getInstance(g);
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               ModelingResources mr = ModelingResources.getInstance(g);
+               Collection<Symbol> result = new ArrayList<Symbol>();
+               Collection<Resource> modConn1s = g.getObjects(this.component, componentConRel);
+               for (Resource modConn1 : modConn1s) {
+               
+                       Collection<Statement> connected = g.getStatements(modConn1, sr.Connects);
+                       Collection<Resource> connectionJoins = g.getObjects(modConn1, sr.IsJoinedBy);
+                       Collection<Resource> connectedComponents = new ArrayList<Resource>();
+                       
+                       for (Statement stm : connected) {
+                               if (!stm.getObject().equals(this.component)) {
+                                       if (g.getInverse(stm.getPredicate()).equals(otherComponentConRel)) {
+                                               connectedComponents.add(stm.getObject());
+                                       }
+                               }
+                       }
+                       
+                       for (Resource connectionJoin : connectionJoins) {
+                               Collection<Resource> joinedConns = g.getObjects(connectionJoin, sr.Joins);
+                               for (Resource conn : joinedConns) {
+                                       if (!conn.equals(modConn1)) {
+                                               // TODO : check ConnectionJoins?
+                                               for (Statement stm : g.getStatements(conn, sr.Connects)) {
+                                                       if (g.getInverse(stm.getPredicate()).equals(otherComponentConRel))
+                                                               connectedComponents.add(stm.getObject());
+                                               }
+                                       }
+                               }
+                       }
+                       for (Resource connectedComponent : connectedComponents) {
+                       
+                               Resource pointElem = g.getSingleObject(connectedComponent, mr.ComponentToElement);
+                               
+                               Diagram diag = diagram.fromExisting(g, g.getSingleObject(connectedComponent, l0.PartOf));
+                               result.add(diag.getSymbol(g, pointElem,connectedComponent));
+                       }
+                       
+               }
+               return result;  
+       }
+       
+       public Collection<Symbol> getConnected(ReadGraph g, Resource componentConRel) throws DatabaseException {
+               assert(componentConRel != null);
+               Layer0 l0 = Layer0.getInstance(g);
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               ModelingResources mr = ModelingResources.getInstance(g);
+               
+               Collection<Resource> modConn1s = g.getObjects(this.component, componentConRel);
+               Collection<Symbol> result = new ArrayList<Symbol>();
+               for (Resource modConn1 : modConn1s) {
+               
+                       Collection<Resource> connected = g.getObjects(modConn1, sr.Connects);
+                       Collection<Resource> connectionJoins = g.getObjects(modConn1, sr.IsJoinedBy);
+                       Collection<Resource> connectedComponents = new ArrayList<Resource>();
+                       
+                       for (Resource r : connected) {
+                               if (!r.equals(this.component)) {
+                                       connectedComponents.add(r);
+                               }
+                       }
+                       for (Resource connectionJoin : connectionJoins) {
+                               Collection<Resource> joinedConns = g.getObjects(connectionJoin, sr.Joins);
+                               for (Resource conn : joinedConns) {
+                                       if (!conn.equals(modConn1)) {
+                                               // TODO : check ConnectionJoins?
+                                               for (Resource obj : g.getObjects(conn, sr.Connects))
+                                                       connectedComponents.add(obj);
+                                       }
+                               }
+                       }
+                       for (Resource connectedComponent : connectedComponents) {
+                       
+                               Resource pointElem = g.getSingleObject(connectedComponent, mr.ComponentToElement);
+                               
+                               Diagram diag = diagram.fromExisting(g, g.getSingleObject(connectedComponent, l0.PartOf));
+                               result.add(diag.getSymbol(g, pointElem,connectedComponent));
+                       }
+               }
+               return result;
+               
+       }
+       
+       /**
+        * Returns connected symbols on diagram level. Searches through branchpoints.
+        * @param g
+        * @param diagramConnRel
+        * @param otherConnRel
+        * @return
+        * @throws DatabaseException
+        */
+       public Collection<Symbol> getDiagramConnected(ReadGraph g, Resource diagramConnRel, Resource otherConnRel) throws DatabaseException {
+               DiagramResource dr = DiagramResource.getInstance(g);
+               Collection<Resource> connectors = g.getObjects(element, diagramConnRel);
+               Collection<Symbol> result = new ArrayList<Symbol>();
+               for (Resource connector : connectors) {
+                       Resource otherConnector = g.getSingleObject(connector, dr.AreConnected);
+                       if (g.isInstanceOf(otherConnector, dr.Connector)) {
+                               getConnectorConnectors(g, otherConnector, otherConnRel, result);
+                       } else if (g.isInstanceOf(otherConnector, dr.RouteLine)) {
+                               getBranchPointConnectors(g, connector, otherConnector, otherConnRel, result);
+                       } else {
+                               throw new DatabaseException("Connector " + g.getPossibleURI(otherConnector) + " " + otherConnector + " han unknown type");
+                       }
+               }
+               return result;
+       }
+       
+       private void getConnectorConnectors(ReadGraph g, Resource connector, Resource otherConnRel, Collection<Symbol> result) throws DatabaseException{
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               DiagramResource dr = DiagramResource.getInstance(g);
+               Collection<Statement> stms = g.getStatements(connector, sr.Connects);
+               Statement stm = null;
+               for (Statement s : stms) {
+                       if (!g.isInstanceOf(s.getObject(), dr.Connection)) {
+                               stm = s;
+                       }
+               }
+               if (stm == null)
+                       return;
+               if (otherConnRel != null) {
+                       Resource rel = g.getInverse(stm.getPredicate());
+                       if (!rel.equals(otherConnRel))
+                               return;
+               }
+               Resource element = stm.getObject();
+               result.add(diagram.getSymbol(g, element));
+       }
+       
+       private void getBranchPointConnectors(ReadGraph g, Resource origin, Resource branchPoint, Resource otherConnRel, Collection<Symbol> result) throws DatabaseException {
+               DiagramResource dr = DiagramResource.getInstance(g);
+               
+               Collection<Resource> branchConnected = g.getObjects(branchPoint, dr.AreConnected);
+               for (Resource branchConnector : branchConnected) {
+                       if (branchConnector.equals(origin))
+                               continue;
+                       if (g.isInstanceOf(branchConnector, dr.Connector)) {
+                               getConnectorConnectors(g, branchConnector, otherConnRel, result);
+                       } else if (g.isInstanceOf(branchConnector, dr.RouteLine)) {
+                               getBranchPointConnectors(g, branchPoint, branchConnector, otherConnRel, result);
+                       } else {
+                               throw new DatabaseException("Connector " + g.getPossibleURI(branchConnector) + " " + branchConnector + " han unknown type");
+                       }
+               }
+       }
+
+       public Collection<Symbol> getDiagramConnected(ReadGraph g, Resource diagramConnRel) throws DatabaseException {
+               return getDiagramConnected(g, diagramConnRel,null);
+       }
+       
+       public Collection<Symbol> getDiagramInverseConnected(ReadGraph g,  Resource otherConnRel) throws DatabaseException {
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               return getDiagramConnected(g, sr.IsConnectedTo, otherConnRel);
+               
+       }
+       
+       public Collection<Symbol> getDiagramConnected(ReadGraph g) throws DatabaseException {
+               StructuralResource2 sr = StructuralResource2.getInstance(g);
+               return getDiagramConnected(g, sr.IsConnectedTo, null);
+       }
+       
+       public Symbol getDiagramSingleConnected(ReadGraph g, Resource diagramConnRel) throws DatabaseException {
+               Collection<Symbol> symbols = getDiagramConnected(g, diagramConnRel);
+               if (symbols.size() > 1) {
+                       throw new NoSingleResultException("Symbol " + element + " has more than one connection with " + diagramConnRel);
+               } else if (symbols.size() == 1) {
+                       return symbols.iterator().next();
+               }
+               return null;
+       }
+       
+       public Symbol getOtherFlag(ReadGraph g) throws DatabaseException {
+               DiagramResource dr = DiagramResource.getInstance(g);
+               Resource connectionJoin = g.getPossibleObject(element, dr.FlagIsJoinedBy);
+               if (connectionJoin == null)
+                       return null;
+               Collection<Resource> flags = g.getObjects(connectionJoin, dr.JoinsFlag);
+               Resource otherFlag = null;
+               for (Resource f : flags) {
+                       if (!f.equals(element)) {
+                               otherFlag = f;
+                               break;
+                       }
+               }
+               
+               if (otherFlag == null) {
+                       return null;
+               }
+               Resource otherDiagramR = OrderedSetUtils.getSingleOwnerList(g, otherFlag);
+               Diagram otherDiagram = diagram.fromExisting(g, otherDiagramR);
+               return otherDiagram.getSymbol(g, otherFlag, null);
+               
+       }
+
+       /**
+        * Returns concatenated translation of the symbol.
+        * @param g
+        * @return
+        * @throws DatabaseException
+        */
+       public double[] getSymbolTranslation(ReadGraph g) throws DatabaseException {
+               DiagramResource d = DiagramResource.getInstance(g);
+               ModelingResources mr = ModelingResources.getInstance(g);
+               
+               Resource e = element;
+               AffineTransform at = new AffineTransform();
+               while (e != null) {
+                       double transform[] = g.getPossibleRelatedValue(e, d.HasTransform);
+                       if (transform == null)
+                               break;
+                       AffineTransform at2 = new AffineTransform(transform);
+                       at.preConcatenate(at2);
+                       Resource component = g.getPossibleObject(e, mr.HasParentComponent);
+                       if (component != null) {
+                               e = g.getPossibleObject(component, mr.ComponentToElement);
+                       } else {
+                               e = null;
+                       }
+               }
+
+               return new double[]{at.getTranslateX(),at.getTranslateY()};
+       }
+       
+       /**
+        * Returns transformation of the symbol.
+        * @param g
+        * @return
+        * @throws DatabaseException
+        */
+       public double[] getSymbolTransformation(ReadGraph g) throws DatabaseException{
+               DiagramResource d = DiagramResource.getInstance(g);
+               double transform[] = g.getPossibleRelatedValue(element, d.HasTransform);
+               return transform;
+       }
+       
+       /**
+        * Sets translation of symbol. The scale is set to 1.0.
+        * @param g
+        * @param x
+        * @param y
+        * @throws DatabaseException
+        */
+       public void setSymbolTranslation(WriteGraph g, double x, double y) throws DatabaseException {
+               DiagramResource d = DiagramResource.getInstance(g);
+               G2DResource g2d = G2DResource.getInstance(g);
+               g.claimLiteral(element, d.HasTransform, g2d.Transform, new double[]{1.0,0.0,0.0,1.0,x,y});
+       }
+       
+       public void setSymbolTransformation(WriteGraph g, AffineTransform at) throws DatabaseException {
+               DiagramResource d = DiagramResource.getInstance(g);
+               G2DResource g2d = G2DResource.getInstance(g);
+               double arr[] = new double[6];
+               at.getMatrix(arr);
+               g.claimLiteral(element, d.HasTransform, g2d.Transform, arr);
+       }
+       
+       /**
+        * Set the scale of symbol.
+        * @param g
+        * @param scale
+        * @throws DatabaseException
+        */
+       public void setScale(WriteGraph g, double scale) throws DatabaseException {
+               DiagramResource d = DiagramResource.getInstance(g);
+               double transform[] = g.getPossibleRelatedValue(element, d.HasTransform);
+               g.claimLiteral(element, d.HasTransform, new double[]{scale,0.0,0.0,scale,transform[4],transform[5]});
+       }
+       
+       @Override
+       public boolean equals(Object o) {
+               if (o == null)
+                       return false;
+               if (this.getClass() != o.getClass())
+                       return false;
+               Symbol other = (Symbol)o;
+               return element.equals(other.element);
+       }
+       
+       @Override
+       public int hashCode() {
+               return element.hashCode();
+       }
+       
+       
+       
+       /**
+        * Returns component type from symbol type
+        * @param g
+        * @param symbolType
+        * @return
+        * @throws NoSingleResultException
+        * @throws ManyObjectsForFunctionalRelationException
+        * @throws ServiceException
+        */
+       public static Resource getComponentTypeFromSymbolType(ReadGraph g, Resource symbolType) throws NoSingleResultException, ManyObjectsForFunctionalRelationException, ServiceException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               Resource component = g.getPossibleObject(symbolType, m.SymbolToComponentType);
+               return component;
+       }
+       
+       public static Resource getSymbolTypeFromComponentType(ReadGraph g, Resource componentType) throws NoSingleResultException, ServiceException, ManyObjectsForFunctionalRelationException {
+               ModelingResources m = ModelingResources.getInstance(g);
+               Collection<Resource> symbols = g.getObjects(componentType, m.ComponentTypeToSymbol);
+               if (symbols.size() == 0)
+                       return null;
+               return symbols.iterator().next();
+       }
+       
+       public void dispose() {
+               diagram = null;
+               component = null;
+               element = null;
+       }
+
+       /**
+        * Common interface for Symbol.connect return value.
+        *
+        */
+       public interface SymbolConnectionData {
+               
+       }
+       
+       /**
+        * Interface for returning diagram level connectors.
+        *
+        */
+       public interface DiagramConnectionData extends SymbolConnectionData {
+               public int getConnectionCount();
+               public Resource getConnection(int index);
+       }
+       
+       /**
+        * Interface for flag connections. 
+        *
+        */
+       public interface FlagConnectionData extends SymbolConnectionData {
+               public Symbol getFirstFlag();
+               public Symbol getSecondFlag();
+       }
+       
+       
+       /**
+        * Interface for signal connections. 
+        *
+        */
+       public interface SignalConnectionData extends SymbolConnectionData {
+               public Resource getSignalComponent();
+       }
+       
+       /**
+        * Interface for Point connections. 
+        *
+        */
+       public interface PointConnectionData extends SymbolConnectionData {
+               Symbol getPoint();
+       }
+       
+       /**
+        * Interface for "connection" that merged the connected symbols into one symbol. 
+        *
+        */
+       public interface MergeSymbolData extends SymbolConnectionData {
+               Symbol getResultSymbol();
+       }
+       
+       /**
+        * Return value for a connection that already exists. 
+        *
+        */
+       public interface SymbolExists extends SymbolConnectionData {
+               
+       }
+       
+       /**
+        * Return value for an error. 
+        *
+        */
+       public interface ConnectionError extends SymbolConnectionData {
+               String getReason();
+       }
+       
+       private static class ConnectionErrorImpl implements ConnectionError {
+               private String error;
+               
+               public ConnectionErrorImpl(String error) {
+                       this.error = error;
+               }
+               
+               @Override
+               public String getReason() {
+                       return error;
+               }
+       }
+       
+       private static class SymbolExistsImpl implements SymbolExists {
+               
+       }
+       
+       private static class ConnectorDataImpl implements DiagramConnectionData {
+               
+               private Resource[] connectors;
+               
+               public ConnectorDataImpl(Resource... connectors) {
+                       this.connectors = connectors;
+               }
+               
+               @Override
+               public Resource getConnection(int index) {
+                       return connectors[index];
+               }
+               
+               @Override
+               public int getConnectionCount() {
+                       return connectors.length;
+               }
+       }
+       
+       private static class PointConnectionDataImpl implements PointConnectionData {
+               
+               private Symbol point;
+               
+               public PointConnectionDataImpl(Symbol point) {
+                       this.point = point;
+               }
+               
+               @Override
+               public Symbol getPoint() {
+                       return point;
+               }
+       }
+       
+       private static class SignalConnectionDataImpl implements SignalConnectionData, DiagramConnectionData{
+               
+               private Resource signalComponent;
+               private Resource[] connectors;
+               
+               public SignalConnectionDataImpl(Resource signalComponent, Resource... connectors) {
+                       this.signalComponent = signalComponent;
+                       this.connectors = connectors;
+               }
+               
+               @Override
+               public Resource getSignalComponent() {
+                       return signalComponent;
+               }
+               
+               @Override
+               public Resource getConnection(int index) {
+                       return connectors[index];
+               }
+               
+               @Override
+               public int getConnectionCount() {
+                       return connectors.length;
+               }
+               
+       }
+       
+       private static class FlagConnectionDataImpl implements FlagConnectionData, DiagramConnectionData {
+               
+               private Symbol firstFlag;
+               private Symbol secondFlag;
+               private Resource[] connectors;
+               
+               public FlagConnectionDataImpl(Symbol firstFlag, Symbol secondFlag, Resource... connectors) {
+                       this.firstFlag = firstFlag;
+                       this.secondFlag = secondFlag;
+                       this.connectors = connectors;
+               }
+               
+               @Override
+               public Symbol getFirstFlag() {
+                       return firstFlag;
+               }
+               
+               @Override
+               public Symbol getSecondFlag() {
+                       return secondFlag;
+               }
+               
+               @Override
+               public Resource getConnection(int index) {
+                       return connectors[index];
+               }
+               
+               @Override
+               public int getConnectionCount() {
+                       return connectors.length;
+               }
+       }
+
+       public void setComponentValue(WriteGraph graph, Resource property, double value) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, float value) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, boolean value) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, int value) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, String value) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, double value[]) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, float value[]) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, int value[]) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setComponentValue(WriteGraph graph, Resource property, boolean value[]) throws DatabaseException{
+               setValue(graph, component, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, double value) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, float value) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, boolean value) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, int value) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, double value[]) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, float value[]) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, int value[]) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       public void setElementValue(WriteGraph graph, Resource property, boolean value[]) throws DatabaseException{
+               setValue(graph, element, property, value);
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, double value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.Double.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.DOUBLE);
+               } else if (l0.Float.equals(range)) {
+                       graph.claimLiteral(object, property, (float)value, Bindings.FLOAT);
+               } else if (l0.Integer.equals(range)) {
+                       graph.claimLiteral(object, property, (int)value, Bindings.INTEGER);
+               } else if (l0.Long.equals(range)) {
+                       graph.claimLiteral(object, property, (long)value, Bindings.LONG);
+               } else if (l0.Boolean.equals(range)) {
+                       graph.claimLiteral(object, property, value > 0.0, Bindings.BOOLEAN);
+               } else if (l0.String.equals(range)) {
+                       graph.claimLiteral(object, property, Double.toString(value), Bindings.STRING);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.DOUBLE);
+               }
+       }
+
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, float value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.Double.equals(range)) {
+                       graph.claimLiteral(object, property, (double)value, Bindings.DOUBLE);
+               } else if (l0.Float.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.FLOAT);
+               } else if (l0.Integer.equals(range)) {
+                       graph.claimLiteral(object, property, (int)value, Bindings.INTEGER);
+               } else if (l0.Long.equals(range)) {
+                       graph.claimLiteral(object, property, (long)value, Bindings.LONG);
+               } else if (l0.Boolean.equals(range)) {
+                       graph.claimLiteral(object, property, value > 0.f, Bindings.BOOLEAN);
+               } else if (l0.String.equals(range)) {
+                       graph.claimLiteral(object, property, Float.toString(value), Bindings.STRING);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.FLOAT);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, int value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.Double.equals(range)) {
+                       graph.claimLiteral(object, property, (double)value, Bindings.DOUBLE);
+               } else if (l0.Float.equals(range)) {
+                       graph.claimLiteral(object, property, (float) value, Bindings.FLOAT);
+               } else if (l0.Integer.equals(range)) {
+                       graph.claimLiteral(object, property, (int)value, Bindings.INTEGER);
+               } else if (l0.Long.equals(range)) {
+                       graph.claimLiteral(object, property, (long)value, Bindings.LONG);
+               } else if (l0.Boolean.equals(range)) {
+                       graph.claimLiteral(object, property, value > 0, Bindings.BOOLEAN);
+               } else if (l0.String.equals(range)) {
+                       graph.claimLiteral(object, property, Integer.toString(value), Bindings.STRING);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.INTEGER);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, String value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (range == null) {
+                       graph.claimLiteral(object, property, value, Bindings.STRING);
+               } else {
+                       if (graph.isInheritedFrom(range, l0.String)) {
+                               graph.claimLiteral(object, property, value, Bindings.STRING);
+                       } else if (graph.isInheritedFrom(range, l0.Double)) {
+                               graph.claimLiteral(object, property, Double.parseDouble(value), Bindings.DOUBLE);
+                       } else if (graph.isInheritedFrom(range, l0.Float)) {
+                               graph.claimLiteral(object, property, Float.parseFloat(value), Bindings.FLOAT);
+                       } else if (graph.isInheritedFrom(range, l0.Integer)) {
+                               graph.claimLiteral(object, property, Integer.parseInt(value), Bindings.INTEGER);
+                       } else if (graph.isInheritedFrom(range, l0.Long)) {
+                               graph.claimLiteral(object, property, Long.parseLong(value), Bindings.LONG);
+                       } else if (graph.isInheritedFrom(range, l0.Boolean)) {
+                               graph.claimLiteral(object, property, Boolean.parseBoolean(value), Bindings.BOOLEAN);
+                       } else {
+                               graph.claimLiteral(object, property, value, Bindings.STRING);
+                       } 
+               }
+       }
+
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, boolean value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.Boolean.equals(range)) {
+                       graph.claimLiteral(object, property, value , Bindings.BOOLEAN);
+               } else if (l0.String.equals(range)) {
+                       graph.claimLiteral(object, property, Boolean.toString(value), Bindings.STRING);
+               } else if (l0.Integer.equals(range)) {
+                       graph.claimLiteral(object, property, value ? 1 : 0, Bindings.INTEGER);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.BOOLEAN);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, double[] value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.DoubleArray.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.DOUBLE_ARRAY);
+               } else if (l0.FloatArray.equals(range)) {
+                       float arr[] = new float[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (float) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.FLOAT_ARRAY);
+               } else if (l0.IntegerArray.equals(range)) {
+                       int arr[] = new int[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (int) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.INT_ARRAY);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.DOUBLE_ARRAY);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, float[] value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.FloatArray.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.FLOAT_ARRAY);
+               } else if (l0.DoubleArray.equals(range)) {
+                       double arr[] = new double[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (double) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.DOUBLE_ARRAY);
+               } else if (l0.IntegerArray.equals(range)) {
+                       int arr[] = new int[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (int) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.INT_ARRAY);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.FLOAT_ARRAY);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, int[] value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.IntegerArray.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.INT_ARRAY);
+               } else if (l0.DoubleArray.equals(range)) {
+                       double arr[] = new double[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (double) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.DOUBLE_ARRAY);
+               } else if (l0.FloatArray.equals(range)) {
+                       float arr[] = new float[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] = (float) value[i];
+                       graph.claimLiteral(object, property, arr, Bindings.FLOAT_ARRAY);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.INT_ARRAY);
+               }
+       }
+       
+       /**
+        * Sets literal value. Does data conversion if required.
+        * 
+        * Note: This method support only some basic L0 data types.
+        * 
+        * @param graph
+        * @param object
+        * @param property
+        * @param value
+        * @throws DatabaseException
+        */
+       public static void setValue(WriteGraph graph, Resource object, Resource property, boolean[] value) throws DatabaseException{
+               Layer0 l0 = Layer0.getInstance(graph);
+               Resource range = graph.getPossibleObject(property, l0.HasRange);
+               if (l0.BooleanArray.equals(range)) {
+                       graph.claimLiteral(object, property, value, Bindings.BOOLEAN_ARRAY);
+               } else if (l0.IntegerArray.equals(range)) {
+                       int arr[] = new int[value.length];
+                       for (int i = 0; i < value.length; i++)
+                               arr[i] =  value[i] ? 1 : 0;
+                       graph.claimLiteral(object, property, arr, Bindings.INT_ARRAY);
+               } else {
+                       graph.claimLiteral(object, property, value, Bindings.BOOLEAN_ARRAY);
+               }
+       }
+       
+}
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