1 files changed, 474 insertions, 474 deletions
diff --git a/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/policies/AcoreBaseItemSemanticEditPolicy.java b/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/policies/AcoreBaseItemSemanticEditPolicy.java
index db37ac77a1..b53a25ab06 100644
--- a/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/policies/AcoreBaseItemSemanticEditPolicy.java
+++ b/plugins/org.eclipse.emf.cdo.dawn.examples.acore.diagram/src/org/eclipse/emf/cdo/dawn/examples/acore/diagram/edit/policies/AcoreBaseItemSemanticEditPolicy.java
@@ -1,474 +1,474 @@
-/*
- * Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *  
- * Contributors:
- *     Martin Fluegge - initial API and implementation
- * 
- */
-package org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.policies;
-
-import org.eclipse.emf.cdo.dawn.examples.acore.AClass;
-import org.eclipse.emf.cdo.dawn.examples.acore.AInterface;
-import org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.helpers.AcoreBaseEditHelper;
-import org.eclipse.emf.cdo.dawn.examples.acore.diagram.part.AcoreVisualIDRegistry;
-import org.eclipse.emf.cdo.dawn.examples.acore.diagram.providers.AcoreElementTypes;
-
-import org.eclipse.emf.transaction.TransactionalEditingDomain;
-
-import org.eclipse.gef.Request;
-import org.eclipse.gef.commands.Command;
-import org.eclipse.gef.commands.UnexecutableCommand;
-import org.eclipse.gef.requests.ReconnectRequest;
-import org.eclipse.gmf.runtime.common.core.command.ICommand;
-import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
-import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
-import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
-import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
-import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
-import org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy;
-import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
-import org.eclipse.gmf.runtime.emf.type.core.IElementType;
-import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyReferenceRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.DuplicateElementsRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.GetEditContextRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
-import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
-import org.eclipse.gmf.runtime.notation.View;
-
-import java.util.Iterator;
-
-/**
- * @generated
- */
-public class AcoreBaseItemSemanticEditPolicy extends SemanticEditPolicy
-{
-
-  /**
-   * Extended request data key to hold editpart visual id.
-   * 
-   * @generated
-   */
-  public static final String VISUAL_ID_KEY = "visual_id"; //$NON-NLS-1$
-
-  /**
-   * @generated
-   */
-  private final IElementType myElementType;
-
-  /**
-   * @generated
-   */
-  protected AcoreBaseItemSemanticEditPolicy(IElementType elementType)
-  {
-    myElementType = elementType;
-  }
-
-  /**
-   * Extended request data key to hold editpart visual id. Add visual id of edited editpart to extended data of the
-   * request so command switch can decide what kind of diagram element is being edited. It is done in those cases when
-   * it's not possible to deduce diagram element kind from domain element.
-   * 
-   * @generated
-   */
-  public Command getCommand(Request request)
-  {
-    if (request instanceof ReconnectRequest)
-    {
-      Object view = ((ReconnectRequest)request).getConnectionEditPart().getModel();
-      if (view instanceof View)
-      {
-        Integer id = new Integer(AcoreVisualIDRegistry.getVisualID((View)view));
-        request.getExtendedData().put(VISUAL_ID_KEY, id);
-      }
-    }
-    return super.getCommand(request);
-  }
-
-  /**
-   * Returns visual id from request parameters.
-   * 
-   * @generated
-   */
-  protected int getVisualID(IEditCommandRequest request)
-  {
-    Object id = request.getParameter(VISUAL_ID_KEY);
-    return id instanceof Integer ? ((Integer)id).intValue() : -1;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getSemanticCommand(IEditCommandRequest request)
-  {
-    IEditCommandRequest completedRequest = completeRequest(request);
-    Command semanticCommand = getSemanticCommandSwitch(completedRequest);
-    semanticCommand = getEditHelperCommand(completedRequest, semanticCommand);
-    if (completedRequest instanceof DestroyRequest)
-    {
-      DestroyRequest destroyRequest = (DestroyRequest)completedRequest;
-      return shouldProceed(destroyRequest) ? addDeleteViewCommand(semanticCommand, destroyRequest) : null;
-    }
-    return semanticCommand;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command addDeleteViewCommand(Command mainCommand, DestroyRequest completedRequest)
-  {
-    Command deleteViewCommand = getGEFWrapper(new DeleteCommand(getEditingDomain(), (View)getHost().getModel()));
-    return mainCommand == null ? deleteViewCommand : mainCommand.chain(deleteViewCommand);
-  }
-
-  /**
-   * @generated
-   */
-  private Command getEditHelperCommand(IEditCommandRequest request, Command editPolicyCommand)
-  {
-    if (editPolicyCommand != null)
-    {
-      ICommand command = editPolicyCommand instanceof ICommandProxy ? ((ICommandProxy)editPolicyCommand).getICommand()
-          : new CommandProxy(editPolicyCommand);
-      request.setParameter(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, command);
-    }
-    IElementType requestContextElementType = getContextElementType(request);
-    request.setParameter(AcoreBaseEditHelper.CONTEXT_ELEMENT_TYPE, requestContextElementType);
-    ICommand command = requestContextElementType.getEditCommand(request);
-    request.setParameter(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, null);
-    request.setParameter(AcoreBaseEditHelper.CONTEXT_ELEMENT_TYPE, null);
-    if (command != null)
-    {
-      if (!(command instanceof CompositeTransactionalCommand))
-      {
-        command = new CompositeTransactionalCommand(getEditingDomain(), command.getLabel()).compose(command);
-      }
-      return new ICommandProxy(command);
-    }
-    return editPolicyCommand;
-  }
-
-  /**
-   * @generated
-   */
-  private IElementType getContextElementType(IEditCommandRequest request)
-  {
-    IElementType requestContextElementType = AcoreElementTypes.getElementType(getVisualID(request));
-    return requestContextElementType != null ? requestContextElementType : myElementType;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getSemanticCommandSwitch(IEditCommandRequest req)
-  {
-    if (req instanceof CreateRelationshipRequest)
-    {
-      return getCreateRelationshipCommand((CreateRelationshipRequest)req);
-    }
-    else if (req instanceof CreateElementRequest)
-    {
-      return getCreateCommand((CreateElementRequest)req);
-    }
-    else if (req instanceof ConfigureRequest)
-    {
-      return getConfigureCommand((ConfigureRequest)req);
-    }
-    else if (req instanceof DestroyElementRequest)
-    {
-      return getDestroyElementCommand((DestroyElementRequest)req);
-    }
-    else if (req instanceof DestroyReferenceRequest)
-    {
-      return getDestroyReferenceCommand((DestroyReferenceRequest)req);
-    }
-    else if (req instanceof DuplicateElementsRequest)
-    {
-      return getDuplicateCommand((DuplicateElementsRequest)req);
-    }
-    else if (req instanceof GetEditContextRequest)
-    {
-      return getEditContextCommand((GetEditContextRequest)req);
-    }
-    else if (req instanceof MoveRequest)
-    {
-      return getMoveCommand((MoveRequest)req);
-    }
-    else if (req instanceof ReorientReferenceRelationshipRequest)
-    {
-      return getReorientReferenceRelationshipCommand((ReorientReferenceRelationshipRequest)req);
-    }
-    else if (req instanceof ReorientRelationshipRequest)
-    {
-      return getReorientRelationshipCommand((ReorientRelationshipRequest)req);
-    }
-    else if (req instanceof SetRequest)
-    {
-      return getSetCommand((SetRequest)req);
-    }
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getConfigureCommand(ConfigureRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getCreateRelationshipCommand(CreateRelationshipRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getCreateCommand(CreateElementRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getSetCommand(SetRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getEditContextCommand(GetEditContextRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getDestroyElementCommand(DestroyElementRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getDestroyReferenceCommand(DestroyReferenceRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getDuplicateCommand(DuplicateElementsRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getMoveCommand(MoveRequest req)
-  {
-    return null;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req)
-  {
-    return UnexecutableCommand.INSTANCE;
-  }
-
-  /**
-   * @generated
-   */
-  protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req)
-  {
-    return UnexecutableCommand.INSTANCE;
-  }
-
-  /**
-   * @generated
-   */
-  protected final Command getGEFWrapper(ICommand cmd)
-  {
-    return new ICommandProxy(cmd);
-  }
-
-  /**
-   * Returns editing domain from the host edit part.
-   * 
-   * @generated
-   */
-  protected TransactionalEditingDomain getEditingDomain()
-  {
-    return ((IGraphicalEditPart)getHost()).getEditingDomain();
-  }
-
-  /**
-   * Clean all shortcuts to the host element from the same diagram
-   * 
-   * @generated
-   */
-  protected void addDestroyShortcutsCommand(ICompositeCommand cmd, View view)
-  {
-    assert view.getEAnnotation("Shortcut") == null; //$NON-NLS-1$
-    for (Iterator it = view.getDiagram().getChildren().iterator(); it.hasNext();)
-    {
-      View nextView = (View)it.next();
-      if (nextView.getEAnnotation("Shortcut") == null || !nextView.isSetElement() || nextView.getElement() != view.getElement()) { //$NON-NLS-1$
-        continue;
-      }
-      cmd.add(new DeleteCommand(getEditingDomain(), nextView));
-    }
-  }
-
-  /**
-   * @generated
-   */
-  public static class LinkConstraints
-  {
-
-    /**
-     * @generated
-     */
-    public static boolean canCreateAClassSubClasses_4001(AClass source, AClass target)
-    {
-      if (source != null)
-      {
-        if (source.getSubClasses().contains(target))
-        {
-          return false;
-        }
-      }
-
-      return canExistAClassSubClasses_4001(source, target);
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canCreateAClassImplementedInterfaces_4002(AClass source, AInterface target)
-    {
-      if (source != null)
-      {
-        if (source.getImplementedInterfaces().contains(target))
-        {
-          return false;
-        }
-      }
-
-      return canExistAClassImplementedInterfaces_4002(source, target);
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canCreateAClassAssociations_4003(AClass source, AClass target)
-    {
-      if (source != null)
-      {
-        if (source.getAssociations().contains(target))
-        {
-          return false;
-        }
-      }
-
-      return canExistAClassAssociations_4003(source, target);
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canCreateAClassAggregations_4004(AClass source, AClass target)
-    {
-      if (source != null)
-      {
-        if (source.getAggregations().contains(target))
-        {
-          return false;
-        }
-      }
-
-      return canExistAClassAggregations_4004(source, target);
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canCreateAClassCompositions_4005(AClass source, AClass target)
-    {
-      if (source != null)
-      {
-        if (source.getCompositions().contains(target))
-        {
-          return false;
-        }
-      }
-
-      return canExistAClassCompositions_4005(source, target);
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canExistAClassSubClasses_4001(AClass source, AClass target)
-    {
-      return true;
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canExistAClassImplementedInterfaces_4002(AClass source, AInterface target)
-    {
-      return true;
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canExistAClassAssociations_4003(AClass source, AClass target)
-    {
-      return true;
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canExistAClassAggregations_4004(AClass source, AClass target)
-    {
-      return true;
-    }
-
-    /**
-     * @generated
-     */
-    public static boolean canExistAClassCompositions_4005(AClass source, AClass target)
-    {
-      return true;
-    }
-  }
-
-}
+/*
+ * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *  
+ * Contributors:
+ *     Martin Fluegge - initial API and implementation
+ * 
+ */
+package org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.policies;
+
+import org.eclipse.emf.cdo.dawn.examples.acore.AClass;
+import org.eclipse.emf.cdo.dawn.examples.acore.AInterface;
+import org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.helpers.AcoreBaseEditHelper;
+import org.eclipse.emf.cdo.dawn.examples.acore.diagram.part.AcoreVisualIDRegistry;
+import org.eclipse.emf.cdo.dawn.examples.acore.diagram.providers.AcoreElementTypes;
+
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+
+import org.eclipse.gef.Request;
+import org.eclipse.gef.commands.Command;
+import org.eclipse.gef.commands.UnexecutableCommand;
+import org.eclipse.gef.requests.ReconnectRequest;
+import org.eclipse.gmf.runtime.common.core.command.ICommand;
+import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
+import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
+import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
+import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
+import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
+import org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy;
+import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
+import org.eclipse.gmf.runtime.emf.type.core.IElementType;
+import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyReferenceRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.DuplicateElementsRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.GetEditContextRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
+import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
+import org.eclipse.gmf.runtime.notation.View;
+
+import java.util.Iterator;
+
+/**
+ * @generated
+ */
+public class AcoreBaseItemSemanticEditPolicy extends SemanticEditPolicy
+{
+
+  /**
+   * Extended request data key to hold editpart visual id.
+   * 
+   * @generated
+   */
+  public static final String VISUAL_ID_KEY = "visual_id"; //$NON-NLS-1$
+
+  /**
+   * @generated
+   */
+  private final IElementType myElementType;
+
+  /**
+   * @generated
+   */
+  protected AcoreBaseItemSemanticEditPolicy(IElementType elementType)
+  {
+    myElementType = elementType;
+  }
+
+  /**
+   * Extended request data key to hold editpart visual id. Add visual id of edited editpart to extended data of the
+   * request so command switch can decide what kind of diagram element is being edited. It is done in those cases when
+   * it's not possible to deduce diagram element kind from domain element.
+   * 
+   * @generated
+   */
+  public Command getCommand(Request request)
+  {
+    if (request instanceof ReconnectRequest)
+    {
+      Object view = ((ReconnectRequest)request).getConnectionEditPart().getModel();
+      if (view instanceof View)
+      {
+        Integer id = new Integer(AcoreVisualIDRegistry.getVisualID((View)view));
+        request.getExtendedData().put(VISUAL_ID_KEY, id);
+      }
+    }
+    return super.getCommand(request);
+  }
+
+  /**
+   * Returns visual id from request parameters.
+   * 
+   * @generated
+   */
+  protected int getVisualID(IEditCommandRequest request)
+  {
+    Object id = request.getParameter(VISUAL_ID_KEY);
+    return id instanceof Integer ? ((Integer)id).intValue() : -1;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getSemanticCommand(IEditCommandRequest request)
+  {
+    IEditCommandRequest completedRequest = completeRequest(request);
+    Command semanticCommand = getSemanticCommandSwitch(completedRequest);
+    semanticCommand = getEditHelperCommand(completedRequest, semanticCommand);
+    if (completedRequest instanceof DestroyRequest)
+    {
+      DestroyRequest destroyRequest = (DestroyRequest)completedRequest;
+      return shouldProceed(destroyRequest) ? addDeleteViewCommand(semanticCommand, destroyRequest) : null;
+    }
+    return semanticCommand;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command addDeleteViewCommand(Command mainCommand, DestroyRequest completedRequest)
+  {
+    Command deleteViewCommand = getGEFWrapper(new DeleteCommand(getEditingDomain(), (View)getHost().getModel()));
+    return mainCommand == null ? deleteViewCommand : mainCommand.chain(deleteViewCommand);
+  }
+
+  /**
+   * @generated
+   */
+  private Command getEditHelperCommand(IEditCommandRequest request, Command editPolicyCommand)
+  {
+    if (editPolicyCommand != null)
+    {
+      ICommand command = editPolicyCommand instanceof ICommandProxy ? ((ICommandProxy)editPolicyCommand).getICommand()
+          : new CommandProxy(editPolicyCommand);
+      request.setParameter(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, command);
+    }
+    IElementType requestContextElementType = getContextElementType(request);
+    request.setParameter(AcoreBaseEditHelper.CONTEXT_ELEMENT_TYPE, requestContextElementType);
+    ICommand command = requestContextElementType.getEditCommand(request);
+    request.setParameter(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, null);
+    request.setParameter(AcoreBaseEditHelper.CONTEXT_ELEMENT_TYPE, null);
+    if (command != null)
+    {
+      if (!(command instanceof CompositeTransactionalCommand))
+      {
+        command = new CompositeTransactionalCommand(getEditingDomain(), command.getLabel()).compose(command);
+      }
+      return new ICommandProxy(command);
+    }
+    return editPolicyCommand;
+  }
+
+  /**
+   * @generated
+   */
+  private IElementType getContextElementType(IEditCommandRequest request)
+  {
+    IElementType requestContextElementType = AcoreElementTypes.getElementType(getVisualID(request));
+    return requestContextElementType != null ? requestContextElementType : myElementType;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getSemanticCommandSwitch(IEditCommandRequest req)
+  {
+    if (req instanceof CreateRelationshipRequest)
+    {
+      return getCreateRelationshipCommand((CreateRelationshipRequest)req);
+    }
+    else if (req instanceof CreateElementRequest)
+    {
+      return getCreateCommand((CreateElementRequest)req);
+    }
+    else if (req instanceof ConfigureRequest)
+    {
+      return getConfigureCommand((ConfigureRequest)req);
+    }
+    else if (req instanceof DestroyElementRequest)
+    {
+      return getDestroyElementCommand((DestroyElementRequest)req);
+    }
+    else if (req instanceof DestroyReferenceRequest)
+    {
+      return getDestroyReferenceCommand((DestroyReferenceRequest)req);
+    }
+    else if (req instanceof DuplicateElementsRequest)
+    {
+      return getDuplicateCommand((DuplicateElementsRequest)req);
+    }
+    else if (req instanceof GetEditContextRequest)
+    {
+      return getEditContextCommand((GetEditContextRequest)req);
+    }
+    else if (req instanceof MoveRequest)
+    {
+      return getMoveCommand((MoveRequest)req);
+    }
+    else if (req instanceof ReorientReferenceRelationshipRequest)
+    {
+      return getReorientReferenceRelationshipCommand((ReorientReferenceRelationshipRequest)req);
+    }
+    else if (req instanceof ReorientRelationshipRequest)
+    {
+      return getReorientRelationshipCommand((ReorientRelationshipRequest)req);
+    }
+    else if (req instanceof SetRequest)
+    {
+      return getSetCommand((SetRequest)req);
+    }
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getConfigureCommand(ConfigureRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getCreateRelationshipCommand(CreateRelationshipRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getCreateCommand(CreateElementRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getSetCommand(SetRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getEditContextCommand(GetEditContextRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getDestroyElementCommand(DestroyElementRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getDestroyReferenceCommand(DestroyReferenceRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getDuplicateCommand(DuplicateElementsRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getMoveCommand(MoveRequest req)
+  {
+    return null;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req)
+  {
+    return UnexecutableCommand.INSTANCE;
+  }
+
+  /**
+   * @generated
+   */
+  protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req)
+  {
+    return UnexecutableCommand.INSTANCE;
+  }
+
+  /**
+   * @generated
+   */
+  protected final Command getGEFWrapper(ICommand cmd)
+  {
+    return new ICommandProxy(cmd);
+  }
+
+  /**
+   * Returns editing domain from the host edit part.
+   * 
+   * @generated
+   */
+  protected TransactionalEditingDomain getEditingDomain()
+  {
+    return ((IGraphicalEditPart)getHost()).getEditingDomain();
+  }
+
+  /**
+   * Clean all shortcuts to the host element from the same diagram
+   * 
+   * @generated
+   */
+  protected void addDestroyShortcutsCommand(ICompositeCommand cmd, View view)
+  {
+    assert view.getEAnnotation("Shortcut") == null; //$NON-NLS-1$
+    for (Iterator it = view.getDiagram().getChildren().iterator(); it.hasNext();)
+    {
+      View nextView = (View)it.next();
+      if (nextView.getEAnnotation("Shortcut") == null || !nextView.isSetElement() || nextView.getElement() != view.getElement()) { //$NON-NLS-1$
+        continue;
+      }
+      cmd.add(new DeleteCommand(getEditingDomain(), nextView));
+    }
+  }
+
+  /**
+   * @generated
+   */
+  public static class LinkConstraints
+  {
+
+    /**
+     * @generated
+     */
+    public static boolean canCreateAClassSubClasses_4001(AClass source, AClass target)
+    {
+      if (source != null)
+      {
+        if (source.getSubClasses().contains(target))
+        {
+          return false;
+        }
+      }
+
+      return canExistAClassSubClasses_4001(source, target);
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canCreateAClassImplementedInterfaces_4002(AClass source, AInterface target)
+    {
+      if (source != null)
+      {
+        if (source.getImplementedInterfaces().contains(target))
+        {
+          return false;
+        }
+      }
+
+      return canExistAClassImplementedInterfaces_4002(source, target);
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canCreateAClassAssociations_4003(AClass source, AClass target)
+    {
+      if (source != null)
+      {
+        if (source.getAssociations().contains(target))
+        {
+          return false;
+        }
+      }
+
+      return canExistAClassAssociations_4003(source, target);
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canCreateAClassAggregations_4004(AClass source, AClass target)
+    {
+      if (source != null)
+      {
+        if (source.getAggregations().contains(target))
+        {
+          return false;
+        }
+      }
+
+      return canExistAClassAggregations_4004(source, target);
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canCreateAClassCompositions_4005(AClass source, AClass target)
+    {
+      if (source != null)
+      {
+        if (source.getCompositions().contains(target))
+        {
+          return false;
+        }
+      }
+
+      return canExistAClassCompositions_4005(source, target);
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canExistAClassSubClasses_4001(AClass source, AClass target)
+    {
+      return true;
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canExistAClassImplementedInterfaces_4002(AClass source, AInterface target)
+    {
+      return true;
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canExistAClassAssociations_4003(AClass source, AClass target)
+    {
+      return true;
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canExistAClassAggregations_4004(AClass source, AClass target)
+    {
+      return true;
+    }
+
+    /**
+     * @generated
+     */
+    public static boolean canExistAClassCompositions_4005(AClass source, AClass target)
+    {
+      return true;
+    }
+  }
+
+}