ConnectionItemSemanticEditPolicy.java

/*
 * (c) 2011 - 2013 University of Mannheim: Software Engineering Group
 */
package de.uni_mannheim.informatik.swt.models.plm.diagram.edit.policies;

import java.util.HashSet;
import java.util.Iterator;

import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClassifier;
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.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.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.ocl.ParserException;
import org.eclipse.ocl.ecore.Constraint;
import org.eclipse.ocl.expressions.OCLExpression;
import org.eclipse.ocl.helper.OCLHelper;

/**
 * @generated
 */
public class ConnectionItemSemanticEditPolicy
		extends
		de.uni_mannheim.informatik.swt.models.plm.diagram.edit.policies.PLMBaseItemSemanticEditPolicy {

	/**
	 * @generated
	 */
	public ConnectionItemSemanticEditPolicy() {
		super(
				de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.Connection_3060);
	}

	/**
	 * @generated
	 */
	protected Command getDestroyElementCommand(DestroyElementRequest req) {
		View view = (View) getHost().getModel();
		CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(
				getEditingDomain(), null);
		cmd.setTransactionNestingEnabled(false);
		for (Iterator<?> it = view.getTargetEdges().iterator(); it.hasNext();) {
			Edge incomingLink = (Edge) it.next();
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
				DestroyElementRequest r = new DestroyElementRequest(
						incomingLink.getElement(), false);
				cmd.add(new DestroyElementCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.SetRelationshipBaseEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.EqualityEqualEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.InversionInverseEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ComplementComplementEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSupertypeEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSubtypeEditPart.VISUAL_ID) {
				DestroyReferenceRequest r = new DestroyReferenceRequest(
						incomingLink.getSource().getElement(), null,
						incomingLink.getTarget().getElement(), false);
				cmd.add(new DestroyReferenceCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID) {
				DestroyElementRequest r = new DestroyElementRequest(
						incomingLink.getElement(), false);
				cmd.add(new DestroyElementCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
				continue;
			}
		}
		for (Iterator<?> it = view.getSourceEdges().iterator(); it.hasNext();) {
			Edge outgoingLink = (Edge) it.next();
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(outgoingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
				DestroyElementRequest r = new DestroyElementRequest(
						outgoingLink.getElement(), false);
				cmd.add(new DestroyElementCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
				continue;
			}
			if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(outgoingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID) {
				DestroyElementRequest r = new DestroyElementRequest(
						outgoingLink.getElement(), false);
				cmd.add(new DestroyElementCommand(r));
				cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
				continue;
			}
		}
		EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
		if (annotation == null) {
			// there are indirectly referenced children, need extra commands: false
			addDestroyChildNodesCommand(cmd);
			addDestroyShortcutsCommand(cmd, view);
			// delete host element
			cmd.add(new DestroyElementCommand(req));
		} else {
			cmd.add(new DeleteCommand(getEditingDomain(), view));
		}

		//*****************************************************************
		//BEGIN Custom Code
		//*****************************************************************

		//We need to delete the classification manually when not visible
		de.uni_mannheim.informatik.swt.models.plm.PLM.Classification[] classification = null;
		org.eclipse.ocl.ecore.OCL ocl = org.eclipse.ocl.ecore.OCL.newInstance();
		OCLHelper<EClassifier, ?, ?, Constraint> helper = ocl.createOCLHelper();
		helper.setContext(de.uni_mannheim.informatik.swt.models.plm.PLM.PLMPackage.Literals.ONTOLOGY);

		try {
			OCLExpression<EClassifier> q = helper
					.createQuery("Classification.allInstances()->select(i| i.type = self or i.instance = self)");
			classification = ((HashSet<de.uni_mannheim.informatik.swt.models.plm.PLM.Classification>) ocl
					.evaluate(view.getElement(), q))
					.toArray(new de.uni_mannheim.informatik.swt.models.plm.PLM.Classification[] {});
		} catch (ParserException e) {
			e.printStackTrace();
		}

		for (de.uni_mannheim.informatik.swt.models.plm.PLM.Classification i : classification) {
			DestroyElementRequest r = new DestroyElementRequest(i, false);
			cmd.add(new DestroyElementCommand(r));
		}

		//*****************************************************************
		//END Custom Code
		//*****************************************************************

		return getGEFWrapper(cmd.reduce());
	}

	/**
	 * @generated
	 */
	private void addDestroyChildNodesCommand(ICompositeCommand cmd) {
		View view = (View) getHost().getModel();
		for (Iterator<?> nit = view.getChildren().iterator(); nit.hasNext();) {
			Node node = (Node) nit.next();
			switch (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
					.getVisualID(node)) {
			case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ConnectionConnectionAttributesCompartmentEditPart.VISUAL_ID:
				for (Iterator<?> cit = node.getChildren().iterator(); cit
						.hasNext();) {
					Node cnode = (Node) cit.next();
					switch (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
							.getVisualID(cnode)) {
					case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.AttributeEditPart.VISUAL_ID:
						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;
					}
				}
				break;
			case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ConnectionConnectionMethodsCompartmentEditPart.VISUAL_ID:
				for (Iterator<?> cit = node.getChildren().iterator(); cit
						.hasNext();) {
					Node cnode = (Node) cit.next();
					switch (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
							.getVisualID(cnode)) {
					case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.MethodEditPart.VISUAL_ID:
						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;
					}
				}
				break;
			case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ConnectionConnectionVisualizersCompartmentEditPart.VISUAL_ID:
				for (Iterator<?> cit = node.getChildren().iterator(); cit
						.hasNext();) {
					Node cnode = (Node) cit.next();
					switch (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
							.getVisualID(cnode)) {
					case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.LMLVisualizer4EditPart.VISUAL_ID:
						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;
					}
				}
				break;
			case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ConnectionConnectionContentsCompartmentEditPart.VISUAL_ID:
				for (Iterator<?> cit = node.getChildren().iterator(); cit
						.hasNext();) {
					Node cnode = (Node) cit.next();
					switch (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
							.getVisualID(cnode)) {
					case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.EntityEditPart.VISUAL_ID:
						for (Iterator<?> it = cnode.getTargetEdges().iterator(); it
								.hasNext();) {
							Edge incomingLink = (Edge) it.next();
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.SetRelationshipBaseEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.EqualityEqualEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.InversionInverseEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ComplementComplementEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSupertypeEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSubtypeEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
						}
						for (Iterator<?> it = cnode.getSourceEdges().iterator(); it
								.hasNext();) {
							Edge outgoingLink = (Edge) it.next();
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(outgoingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										outgoingLink));
								continue;
							}
						}
						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 de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.Connection2EditPart.VISUAL_ID:
						for (Iterator<?> it = cnode.getTargetEdges().iterator(); it
								.hasNext();) {
							Edge incomingLink = (Edge) it.next();
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.SetRelationshipBaseEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.EqualityEqualEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.InversionInverseEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ComplementComplementEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSupertypeEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSubtypeEditPart.VISUAL_ID) {
								DestroyReferenceRequest r = new DestroyReferenceRequest(
										incomingLink.getSource().getElement(),
										null, incomingLink.getTarget()
												.getElement(), false);
								cmd.add(new DestroyReferenceCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(incomingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										incomingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										incomingLink));
								continue;
							}
						}
						for (Iterator<?> it = cnode.getSourceEdges().iterator(); it
								.hasNext();) {
							Edge outgoingLink = (Edge) it.next();
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(outgoingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										outgoingLink));
								continue;
							}
							if (de.uni_mannheim.informatik.swt.models.plm.diagram.part.PLMVisualIDRegistry
									.getVisualID(outgoingLink) == de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID) {
								DestroyElementRequest r = new DestroyElementRequest(
										outgoingLink.getElement(), false);
								cmd.add(new DestroyElementCommand(r));
								cmd.add(new DeleteCommand(getEditingDomain(),
										outgoingLink));
								continue;
							}
						}
						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;
					}
				}
				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) {
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.Classification_4002 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ClassificationCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.SetRelationshipBase_4013 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.EqualityEqual_4018 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.InversionInverse_4015 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.ComplementComplement_4016 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.GeneralizationSupertype_4022 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.GeneralizationSubtype_4023 == req
				.getElementType()) {
			return null;
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.Participation_4025 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ParticipationCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		return null;
	}

	/**
	 * @generated
	 */
	protected Command getCompleteCreateRelationshipCommand(
			CreateRelationshipRequest req) {
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.Classification_4002 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ClassificationCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.SetRelationshipBase_4013 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.SetRelationshipBaseCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.EqualityEqual_4018 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.EqualityEqualCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.InversionInverse_4015 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.InversionInverseCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.ComplementComplement_4016 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ComplementComplementCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.GeneralizationSupertype_4022 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.GeneralizationSupertypeCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.GeneralizationSubtype_4023 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.GeneralizationSubtypeCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		if (de.uni_mannheim.informatik.swt.models.plm.diagram.providers.PLMElementTypes.Participation_4025 == req
				.getElementType()) {
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ParticipationCreateCommand(
					req, req.getSource(), req.getTarget()));
		}
		return null;
	}

	/**
	 * Returns command to reorient EClass based link. New link target or source
	 * should be the domain model element associated with this node.
	 * 
	 * @generated
	 */
	protected Command getReorientRelationshipCommand(
			ReorientRelationshipRequest req) {
		switch (getVisualID(req)) {
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ClassificationEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ClassificationReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ParticipationEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ParticipationReorientCommand(
					req));
		}
		return super.getReorientRelationshipCommand(req);
	}

	/**
	 * 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 de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.SetRelationshipBaseEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.SetRelationshipBaseReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.EqualityEqualEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.EqualityEqualReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.InversionInverseEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.InversionInverseReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.ComplementComplementEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.ComplementComplementReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSupertypeEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.GeneralizationSupertypeReorientCommand(
					req));
		case de.uni_mannheim.informatik.swt.models.plm.diagram.edit.parts.GeneralizationSubtypeEditPart.VISUAL_ID:
			return getGEFWrapper(new de.uni_mannheim.informatik.swt.models.plm.diagram.edit.commands.GeneralizationSubtypeReorientCommand(
					req));
		}
		return super.getReorientReferenceRelationshipCommand(req);
	}

}