InterruptibleActivityRegionItemSemanticEditPolicy.java

/*****************************************************************************
 * Copyright (c) 2010 Atos Origin.
 *
 *    
 * 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:
 *   Atos Origin - Initial API and implementation
 *
 *****************************************************************************/
package org.eclipse.papyrus.uml.diagram.activity.edit.policies;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
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.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyReferenceCommand;
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.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.commands.wrappers.EMFtoGMFCommandWrapper;
import org.eclipse.papyrus.infra.extendedtypes.types.IExtendedHintedElementType;
import org.eclipse.papyrus.infra.extendedtypes.util.ElementTypeUtils;
import org.eclipse.papyrus.uml.diagram.activity.edit.commands.CommentLinkCreateCommand;
import org.eclipse.papyrus.uml.diagram.activity.edit.commands.CommentLinkReorientCommand;
import org.eclipse.papyrus.uml.diagram.activity.edit.commands.ConstraintConstrainedElementCreateCommand;
import org.eclipse.papyrus.uml.diagram.activity.edit.commands.ConstraintConstrainedElementReorientCommand;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.AcceptEventActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ActionLocalPostconditionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ActionLocalPreconditionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ActivityFinalNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.AddStructuralFeatureValueActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.AddVariableValueActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.BroadcastSignalActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CallBehaviorActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CallOperationActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CentralBufferNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CommentEditPartCN;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CommentLinkEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ConditionalNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ConstraintAsLocalPostcondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ConstraintAsLocalPrecondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ConstraintConstrainedElementEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ConstraintEditPartCN;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ControlFlowEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.CreateObjectActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.DataStoreNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.DecisionNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.DestroyObjectActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.DurationConstraintAsLocalPostcondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.DurationConstraintAsLocalPrecondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ExceptionHandlerEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ExpansionRegionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.FlowFinalNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ForkNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.InitialNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.InterruptibleActivityRegionInterruptibleActivityRegionContentCompartmentEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.IntervalConstraintAsLocalPostcondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.IntervalConstraintAsLocalPrecondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.JoinNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.LoopNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.MergeNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ObjectFlowEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.OpaqueActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ReadSelfActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ReadStructuralFeatureActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ReadVariableActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.SendObjectActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.SendSignalActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.SequenceNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.StructuredActivityNodeEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.TimeConstraintAsLocalPostcondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.TimeConstraintAsLocalPrecondEditPart;
import org.eclipse.papyrus.uml.diagram.activity.edit.parts.ValueSpecificationActionEditPart;
import org.eclipse.papyrus.uml.diagram.activity.part.UMLVisualIDRegistry;
import org.eclipse.papyrus.uml.diagram.activity.providers.UMLElementTypes;

/**
 * @generated
 */
public class InterruptibleActivityRegionItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {

	/**
	 * @generated
	 */
	public InterruptibleActivityRegionItemSemanticEditPolicy() {
		super(UMLElementTypes.InterruptibleActivityRegion_3068);
	}

	/**
	 * @generated
	 */
	protected Command getDestroyElementCommand(DestroyElementRequest req) {
		View view = (View)getHost().getModel();
		CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
		cmd.setTransactionNestingEnabled(true);
		EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
		if(annotation == null) {
			// there are indirectly referenced children, need extra commands: true
			addDestroyChildNodesCommand(cmd);
			addDestroyShortcutsCommand(cmd, view);
			// delete host element
			List<EObject> todestroy = new ArrayList<EObject>();
			todestroy.add(req.getElementToDestroy());
			//cmd.add(new org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand(req));
			cmd.add(new EMFtoGMFCommandWrapper(new org.eclipse.emf.edit.command.DeleteCommand(getEditingDomain(), todestroy)));
		} else {
			cmd.add(new DeleteCommand(getEditingDomain(), view));
		}
		return getGEFWrapper(cmd.reduce());
	}

	/**
	 * @generated
	 */
	protected void addDestroyChildNodesCommand(ICompositeCommand cmd) {
		View view = (View)getHost().getModel();
		for(Iterator<?> nit = view.getChildren().iterator(); nit.hasNext();) {
			Node node = (Node)nit.next();
			switch(UMLVisualIDRegistry.getVisualID(node)) {
			case InterruptibleActivityRegionInterruptibleActivityRegionContentCompartmentEditPart.VISUAL_ID:
				for(Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
					Node cnode = (Node)cit.next();
					switch(UMLVisualIDRegistry.getVisualID(cnode)) {
					case InitialNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ActivityFinalNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case FlowFinalNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case OpaqueActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case CallBehaviorActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case CallOperationActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case DecisionNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case MergeNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ForkNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case JoinNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case DataStoreNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case SendObjectActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case SendSignalActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case AcceptEventActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ValueSpecificationActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ConditionalNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ExpansionRegionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case LoopNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case SequenceNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case StructuredActivityNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ReadSelfActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case DurationConstraintAsLocalPrecondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case DurationConstraintAsLocalPostcondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case TimeConstraintAsLocalPrecondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case TimeConstraintAsLocalPostcondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case IntervalConstraintAsLocalPrecondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case IntervalConstraintAsLocalPostcondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ConstraintAsLocalPrecondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ConstraintAsLocalPostcondEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case CreateObjectActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ReadStructuralFeatureActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case AddStructuralFeatureValueActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case DestroyObjectActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ReadVariableActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case AddVariableValueActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case BroadcastSignalActionEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case CentralBufferNodeEditPart.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
							case ExceptionHandlerEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ObjectFlowEditPart.VISUAL_ID:
							case ControlFlowEditPart.VISUAL_ID:
								DestroyElementRequest destroyEltReq = new DestroyElementRequest(outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(destroyEltReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case CommentEditPartCN.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case CommentLinkEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					case ConstraintEditPartCN.VISUAL_ID:
						for(Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
							Edge incomingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(incomingLink)) {
							case ActionLocalPreconditionEditPart.VISUAL_ID:
							case ActionLocalPostconditionEditPart.VISUAL_ID:
							case CommentLinkEditPart.VISUAL_ID:
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
								break;
							}
						}
						for(Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
							Edge outgoingLink = (Edge)it.next();
							switch(UMLVisualIDRegistry.getVisualID(outgoingLink)) {
							case ConstraintConstrainedElementEditPart.VISUAL_ID:
								DestroyReferenceRequest destroyRefReq = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
								cmd.add(new DestroyReferenceCommand(destroyRefReq));
								cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
								break;
							}
						}
						cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: false
						// don't need explicit deletion of cnode as parent's view deletion would clean child views as well 
						// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
						break;
					}
				}
				break;
			}
		}
	}

	/**
	 * @generated
	 */
	protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
		Command command = req.getTarget() == null ? getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
		return command != null ? command : super.getCreateRelationshipCommand(req);
	}

	/**
	 * @generated
	 */
	protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
		IElementType requestElementType = req.getElementType();
		if(requestElementType == null) {
			return null;
		}
		IElementType baseElementType = requestElementType;
		boolean isExtendedType = false;
		if(requestElementType instanceof IExtendedHintedElementType) {
			baseElementType = ElementTypeUtils.getClosestDiagramType(requestElementType);
			if(baseElementType != null) {
				isExtendedType = true;
			} else {
				// no reference element type ID. using the closest super element type to give more opportunities, but can lead to bugs.
				baseElementType = ElementTypeUtils.findClosestNonExtendedElementType((IExtendedHintedElementType)requestElementType);
				isExtendedType = true;
			}
		}
		if(UMLElementTypes.CommentAnnotatedElement_4006 == baseElementType) {
			return null;
		}
		if(UMLElementTypes.ConstraintConstrainedElement_4007 == baseElementType) {
			return null;
		}
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
		IElementType requestElementType = req.getElementType();
		if(requestElementType == null) {
			return null;
		}
		IElementType baseElementType = requestElementType;
		boolean isExtendedType = false;
		if(requestElementType instanceof IExtendedHintedElementType) {
			baseElementType = ElementTypeUtils.getClosestDiagramType(requestElementType);
			if(baseElementType != null) {
				isExtendedType = true;
			} else {
				// no reference element type ID. using the closest super element type to give more opportunities, but can lead to bugs.
				baseElementType = ElementTypeUtils.findClosestNonExtendedElementType((IExtendedHintedElementType)requestElementType);
				isExtendedType = true;
			}
		}
		if(UMLElementTypes.CommentAnnotatedElement_4006 == baseElementType) {
			if(isExtendedType) {
				return getExtendedCompleteCreateRelationshipCommand(req, (IExtendedHintedElementType)requestElementType);
			}
			return getGEFWrapper(new CommentLinkCreateCommand(req, req.getSource(), req.getTarget()));
		}
		if(UMLElementTypes.ConstraintConstrainedElement_4007 == baseElementType) {
			if(isExtendedType) {
				return getExtendedCompleteCreateRelationshipCommand(req, (IExtendedHintedElementType)requestElementType);
			}
			return getGEFWrapper(new ConstraintConstrainedElementCreateCommand(req, req.getSource(), req.getTarget()));
		}
		return null;
	}

	/**
	 * Returns command to reorient EReference based link. New link target or source
	 * should be the domain model element associated with this node.
	 * 
	 * @generated
	 */
	protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req) {
		switch(getVisualID(req)) {
		case CommentLinkEditPart.VISUAL_ID:
			return getGEFWrapper(new CommentLinkReorientCommand(req));
		case ConstraintConstrainedElementEditPart.VISUAL_ID:
			return getGEFWrapper(new ConstraintConstrainedElementReorientCommand(req));
		}
		return super.getReorientReferenceRelationshipCommand(req);
	}
}