/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* 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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*/
package org.eclipse.papyrus.uml.diagram.clazz.edit.policies;
import java.util.Iterator;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gef.requests.ReconnectRequest;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.commands.MoveElementsCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyReferenceRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DuplicateElementsRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.GetEditContextRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.tooling.runtime.edit.helpers.GeneratedEditHelperBase;
import org.eclipse.papyrus.infra.extendedtypes.types.IExtendedHintedElementType;
import org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.infra.services.edit.service.IElementEditService;
import org.eclipse.papyrus.uml.diagram.clazz.part.UMLDiagramEditorPlugin;
import org.eclipse.papyrus.uml.diagram.clazz.part.UMLVisualIDRegistry;
import org.eclipse.papyrus.uml.diagram.clazz.providers.UMLElementTypes;
import org.eclipse.uml2.uml.Abstraction;
import org.eclipse.uml2.uml.ActivityNode;
import org.eclipse.uml2.uml.ActivityPartition;
import org.eclipse.uml2.uml.Actor;
import org.eclipse.uml2.uml.Artifact;
import org.eclipse.uml2.uml.Association;
import org.eclipse.uml2.uml.AssociationClass;
import org.eclipse.uml2.uml.BehavioredClassifier;
import org.eclipse.uml2.uml.Class;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Comment;
import org.eclipse.uml2.uml.Component;
import org.eclipse.uml2.uml.Constraint;
import org.eclipse.uml2.uml.Dependency;
import org.eclipse.uml2.uml.DurationObservation;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.ElementImport;
import org.eclipse.uml2.uml.Generalization;
import org.eclipse.uml2.uml.GeneralizationSet;
import org.eclipse.uml2.uml.InformationFlow;
import org.eclipse.uml2.uml.InstanceSpecification;
import org.eclipse.uml2.uml.Interface;
import org.eclipse.uml2.uml.InterfaceRealization;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Namespace;
import org.eclipse.uml2.uml.Node;
import org.eclipse.uml2.uml.Package;
import org.eclipse.uml2.uml.PackageImport;
import org.eclipse.uml2.uml.PackageMerge;
import org.eclipse.uml2.uml.PackageableElement;
import org.eclipse.uml2.uml.Port;
import org.eclipse.uml2.uml.Profile;
import org.eclipse.uml2.uml.ProfileApplication;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.Realization;
import org.eclipse.uml2.uml.Relationship;
import org.eclipse.uml2.uml.Slot;
import org.eclipse.uml2.uml.Substitution;
import org.eclipse.uml2.uml.TemplateBinding;
import org.eclipse.uml2.uml.TemplateableElement;
import org.eclipse.uml2.uml.TimeObservation;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.Usage;
import org.eclipse.uml2.uml.UseCase;
/**
* @generated
*/
public class UMLBaseItemSemanticEditPolicy extends SemanticEditPolicy {
/**
* Extended request data key to hold editpart visual id.
*
* @generated
*/
public static final String VISUAL_ID_KEY = "visual_id"; //$NON-NLS-1$
/**
* Extended request data key to hold the edge view during a reconnect request.
*
* @generated
*/
public static final String GRAPHICAL_RECONNECTED_EDGE = "graphical_edge"; //$NON-NLS-1$
/**
* @generated
*/
private final IElementType myElementType;
/**
* @generated
*/
protected UMLBaseItemSemanticEditPolicy(IElementType elementType) {
myElementType = elementType;
}
/**
* Extended request data key to hold editpart visual id.
* Add visual id of edited editpart to extended data of the request
* so command switch can decide what kind of diagram element is being edited.
* It is done in those cases when it's not possible to deduce diagram
* element kind from domain element.
* Add the reoriented view to the request extended data so that the view
* currently edited can be distinguished from other views of the same element
* and these latter possibly removed if they become inconsistent after reconnect
*
* @generated
*/
@Override
@SuppressWarnings("unchecked")
public Command getCommand(Request request) {
if(request instanceof ReconnectRequest) {
Object view = ((ReconnectRequest)request).getConnectionEditPart().getModel();
if(view instanceof View) {
Integer id = new Integer(UMLVisualIDRegistry.getVisualID((View)view));
request.getExtendedData().put(VISUAL_ID_KEY, id);
request.getExtendedData().put(GRAPHICAL_RECONNECTED_EDGE, (View)view);
}
}
return super.getCommand(request);
}
/**
* Returns visual id from request parameters.
*
* @generated
*/
protected int getVisualID(IEditCommandRequest request) {
Object id = request.getParameter(VISUAL_ID_KEY);
return id instanceof Integer ? ((Integer)id).intValue() : -1;
}
/**
* @generated
*/
@Override
protected Command getSemanticCommand(IEditCommandRequest request) {
IEditCommandRequest completedRequest = completeRequest(request);
Command semanticCommand = getSemanticCommandSwitch(completedRequest);
semanticCommand = getEditHelperCommand(completedRequest, semanticCommand);
if(completedRequest instanceof DestroyRequest) {
DestroyRequest destroyRequest = (DestroyRequest)completedRequest;
return shouldProceed(destroyRequest) ? addDeleteViewCommand(semanticCommand, destroyRequest) : null;
}
return semanticCommand;
}
/**
* @generated
*/
protected Command addDeleteViewCommand(Command mainCommand, DestroyRequest completedRequest) {
Command deleteViewCommand = getGEFWrapper(new DeleteCommand(getEditingDomain(), (View)getHost().getModel()));
return mainCommand == null ? deleteViewCommand : mainCommand.chain(deleteViewCommand);
}
/**
* @generated
*/
private Command getEditHelperCommand(IEditCommandRequest request, Command editPolicyCommand) {
if(editPolicyCommand != null) {
ICommand command = editPolicyCommand instanceof ICommandProxy ? ((ICommandProxy)editPolicyCommand).getICommand() : new CommandProxy(editPolicyCommand);
request.setParameter(GeneratedEditHelperBase.EDIT_POLICY_COMMAND, command);
}
IElementType requestContextElementType = getContextElementType(request);
request.setParameter(GeneratedEditHelperBase.CONTEXT_ELEMENT_TYPE, requestContextElementType);
ICommand command = requestContextElementType.getEditCommand(request);
request.setParameter(GeneratedEditHelperBase.EDIT_POLICY_COMMAND, null);
request.setParameter(GeneratedEditHelperBase.CONTEXT_ELEMENT_TYPE, null);
if(command != null) {
if(!(command instanceof CompositeTransactionalCommand)) {
command = new CompositeTransactionalCommand(getEditingDomain(), command.getLabel()).compose(command);
}
return new ICommandProxy(command);
}
return editPolicyCommand;
}
/**
* @generated
*/
protected IElementType getContextElementType(IEditCommandRequest request) {
IElementType requestContextElementType = UMLElementTypes.getElementType(getVisualID(request));
return requestContextElementType != null ? requestContextElementType : myElementType;
}
/**
* @generated
*/
protected Command getSemanticCommandSwitch(IEditCommandRequest req) {
if(req instanceof CreateRelationshipRequest) {
return getCreateRelationshipCommand((CreateRelationshipRequest)req);
} else if(req instanceof CreateElementRequest) {
return getCreateCommand((CreateElementRequest)req);
} else if(req instanceof ConfigureRequest) {
return getConfigureCommand((ConfigureRequest)req);
} else if(req instanceof DestroyElementRequest) {
return getDestroyElementCommand((DestroyElementRequest)req);
} else if(req instanceof DestroyReferenceRequest) {
return getDestroyReferenceCommand((DestroyReferenceRequest)req);
} else if(req instanceof DuplicateElementsRequest) {
return getDuplicateCommand((DuplicateElementsRequest)req);
} else if(req instanceof GetEditContextRequest) {
return getEditContextCommand((GetEditContextRequest)req);
} else if(req instanceof MoveRequest) {
return getMoveCommand((MoveRequest)req);
} else if(req instanceof ReorientReferenceRelationshipRequest) {
return getReorientReferenceRelationshipCommand((ReorientReferenceRelationshipRequest)req);
} else if(req instanceof ReorientRelationshipRequest) {
return getReorientRelationshipCommand((ReorientRelationshipRequest)req);
} else if(req instanceof SetRequest) {
return getSetCommand((SetRequest)req);
}
return null;
}
/**
* @generated
*/
protected Command getConfigureCommand(ConfigureRequest req) {
return null;
}
/**
* @generated
*/
protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
return null;
}
/**
* @generated
*/
protected Command getCreateCommand(CreateElementRequest req) {
// no more usage of the extended types here.
return null;
}
/**
* @generated
*/
protected Command getExtendedTypeCreationCommand(CreateElementRequest request, IExtendedHintedElementType requestElementType) {
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(request.getContainer());
if(provider == null) {
return UnexecutableCommand.INSTANCE;
}
// Retrieve create command from the Element Edit service
ICommand createGMFCommand = provider.getEditCommand(request);
return getGEFWrapper(createGMFCommand);
}
/**
* @generated
*/
protected Command getExtendedStartCreateRelationshipCommand(CreateElementRequest request, IExtendedHintedElementType requestElementType) {
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(requestElementType);
if(provider == null) {
return UnexecutableCommand.INSTANCE;
}
// Retrieve create command from the Element Edit service
ICommand createGMFCommand = provider.getEditCommand(request);
return getGEFWrapper(createGMFCommand);
}
/**
* @generated
*/
protected Command getExtendedCompleteCreateRelationshipCommand(CreateElementRequest request, IExtendedHintedElementType requestElementType) {
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(requestElementType);
if(provider == null) {
return UnexecutableCommand.INSTANCE;
}
// Retrieve create command from the Element Edit service
ICommand createGMFCommand = provider.getEditCommand(request);
return getGEFWrapper(createGMFCommand);
}
/**
* @generated
*/
protected Command getSetCommand(SetRequest req) {
return null;
}
/**
* @generated
*/
protected Command getEditContextCommand(GetEditContextRequest req) {
return null;
}
/**
* @generated
*/
protected Command getDestroyElementCommand(DestroyElementRequest req) {
return null;
}
/**
* @generated
*/
protected Command getDestroyReferenceCommand(DestroyReferenceRequest req) {
return null;
}
/**
* @generated
*/
protected Command getDuplicateCommand(DuplicateElementsRequest req) {
return null;
}
/**
* @generated
*/
protected Command getMoveCommand(MoveRequest req) {
EObject targetCEObject = req.getTargetContainer();
if(targetCEObject != null) {
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(targetCEObject);
if(provider != null) {
ICommand moveCommand = provider.getEditCommand(req);
if(moveCommand != null) {
return new ICommandProxy(moveCommand);
}
}
return UnexecutableCommand.INSTANCE;
} else {
return getGEFWrapper(new MoveElementsCommand(req));
}
}
/**
* @generated
*/
protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req) {
return UnexecutableCommand.INSTANCE;
}
/**
* @generated
*/
protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req) {
return UnexecutableCommand.INSTANCE;
}
/**
* @generated
*/
protected final Command getGEFWrapper(ICommand cmd) {
return new ICommandProxy(cmd);
}
/**
* Returns editing domain from the host edit part.
*
* @generated
*/
protected TransactionalEditingDomain getEditingDomain() {
return ((IGraphicalEditPart)getHost()).getEditingDomain();
}
/**
* Clean all shortcuts to the host element from the same diagram
*
* @generated
*/
protected void addDestroyShortcutsCommand(ICompositeCommand cmd, View view) {
assert view.getEAnnotation("Shortcut") == null; //$NON-NLS-1$
for(Iterator it = view.getDiagram().getChildren().iterator(); it.hasNext();) {
View nextView = (View)it.next();
if(nextView.getEAnnotation("Shortcut") == null || !nextView.isSetElement() || nextView.getElement() != view.getElement()) { //$NON-NLS-1$
continue;
}
cmd.add(new DeleteCommand(getEditingDomain(), nextView));
}
}
/**
* @generated
*/
public static LinkConstraints getLinkConstraints() {
LinkConstraints cached = UMLDiagramEditorPlugin.getInstance().getLinkConstraints();
if(cached == null) {
UMLDiagramEditorPlugin.getInstance().setLinkConstraints(cached = new LinkConstraints());
}
return cached;
}
/**
* @generated
*/
public static class LinkConstraints {
/**
* @generated
*/
public LinkConstraints() {
// use static method #getLinkConstraints() to access instance
}
/**
* @generated
*/
public boolean canCreateLink_4016() {
return canExistLink_4016();
}
/**
* @generated
*/
public boolean canCreateAssociationClass_4017(Package container, Type source, Type target) {
return canExistAssociationClass_4017(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateAssociation_4001(Package container, Type source, Type target) {
return canExistAssociation_4001(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateAssociation_4019(Package container, Type source, Type target) {
return canExistAssociation_4019(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateGeneralization_4002(Classifier source, Classifier target) {
return canExistGeneralization_4002(null, source, target);
}
/**
* @generated
*/
public boolean canCreateInterfaceRealization_4003(BehavioredClassifier source, Interface target) {
return canExistInterfaceRealization_4003(null, source, target);
}
/**
* @generated
*/
public boolean canCreateSubstitution_4004(Classifier container, Classifier source, Classifier target) {
return canExistSubstitution_4004(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateRealization_4005(Package container, NamedElement source, NamedElement target) {
return canExistRealization_4005(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateAbstraction_4006(Package container, NamedElement source, NamedElement target) {
return canExistAbstraction_4006(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateUsage_4007(Package container, NamedElement source, NamedElement target) {
return canExistUsage_4007(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateDependency_4008(Package container, NamedElement source, NamedElement target) {
return canExistDependency_4008(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateDependency_4018(Package container, NamedElement source, NamedElement target) {
return canExistDependency_4018(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateElementImport_4009(Namespace source, PackageableElement target) {
return canExistElementImport_4009(null, source, target);
}
/**
* @generated
*/
public boolean canCreatePackageImport_4010(Namespace source, Package target) {
return canExistPackageImport_4010(null, source, target);
}
/**
* @generated
*/
public boolean canCreatePackageMerge_4011(Package container, Package source, Package target) {
return canExistPackageMerge_4011(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateProfileApplication_4012(Package source, Profile target) {
return canExistProfileApplication_4012(null, source, target);
}
/**
* @generated
*/
public boolean canCreateCommentAnnotatedElement_4013(Comment source, Element target) {
if(source != null) {
if(source.getAnnotatedElements().contains(target)) {
return false;
}
}
return canExistCommentAnnotatedElement_4013(source, target);
}
/**
* @generated
*/
public boolean canCreateConstraintConstrainedElement_4014(Constraint source, Element target) {
if(source != null) {
if(source.getConstrainedElements().contains(target)) {
return false;
}
}
return canExistConstraintConstrainedElement_4014(source, target);
}
/**
* @generated
*/
public boolean canCreateTemplateBinding_4015(TemplateableElement container, TemplateableElement source, TemplateableElement target) {
return canExistTemplateBinding_4015(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateGeneralizationSet_4020(Package container, Generalization source, Generalization target) {
return canExistGeneralizationSet_4020(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateInstanceSpecification_4021(Package container, Slot source, Slot target) {
return canExistInstanceSpecification_4021(container, null, source, target);
}
/**
* @generated
*/
public boolean canCreateLink_4022() {
return canExistLink_4022();
}
/**
* @generated
*/
public boolean canCreateLink_4023() {
return canExistLink_4023();
}
/**
* @generated
*/
public boolean canCreateTimeObservationEvent_4024(TimeObservation source, NamedElement target) {
if(source != null) {
if(source.getEvent() != null) {
return false;
}
}
return canExistTimeObservationEvent_4024(source, target);
}
/**
* @generated
*/
public boolean canCreateDurationObservationEvent_4025(DurationObservation source, NamedElement target) {
if(source != null) {
if(source.getEvents().size() >= 2 || source.getEvents().contains(target)) {
return false;
}
}
return canExistDurationObservationEvent_4025(source, target);
}
/**
* @generated
*/
public boolean canCreateInformationFlow_4026(Package container, NamedElement source, NamedElement target) {
return canExistInformationFlow_4026(container, null, source, target);
}
/**
* @generated
*/
public boolean canExistLink_4016() {
return true;
}
/**
* @generated
*/
public boolean canExistAssociationClass_4017(Package container, AssociationClass linkInstance, Type source, Type target) {
return true;
}
/**
* @generated
*/
public boolean canExistAssociation_4001(Package container, Association linkInstance, Type source, Type target) {
return true;
}
/**
* @generated
*/
public boolean canExistAssociation_4019(Package container, Association linkInstance, Type source, Type target) {
return true;
}
/**
* @generated
*/
public boolean canExistGeneralization_4002(Generalization linkInstance, Classifier source, Classifier target) {
return true;
}
/**
* @generated
*/
public boolean canExistInterfaceRealization_4003(InterfaceRealization linkInstance, BehavioredClassifier source, Interface target) {
return true;
}
/**
* @generated
*/
public boolean canExistSubstitution_4004(Classifier container, Substitution linkInstance, Classifier source, Classifier target) {
return true;
}
/**
* @generated
*/
public boolean canExistRealization_4005(Package container, Realization linkInstance, NamedElement source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistAbstraction_4006(Package container, Abstraction linkInstance, NamedElement source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistUsage_4007(Package container, Usage linkInstance, NamedElement source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistDependency_4008(Package container, Dependency linkInstance, NamedElement source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistDependency_4018(Package container, Dependency linkInstance, NamedElement source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistElementImport_4009(ElementImport linkInstance, Namespace source, PackageableElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistPackageImport_4010(PackageImport linkInstance, Namespace source, Package target) {
return true;
}
/**
* @generated
*/
public boolean canExistPackageMerge_4011(Package container, PackageMerge linkInstance, Package source, Package target) {
return true;
}
/**
* @generated
*/
public boolean canExistProfileApplication_4012(ProfileApplication linkInstance, Package source, Profile target) {
return true;
}
/**
* @generated
*/
public boolean canExistCommentAnnotatedElement_4013(Comment source, Element target) {
return true;
}
/**
* @generated
*/
public boolean canExistConstraintConstrainedElement_4014(Constraint source, Element target) {
return true;
}
/**
* @generated
*/
public boolean canExistTemplateBinding_4015(TemplateableElement container, TemplateBinding linkInstance, TemplateableElement source, TemplateableElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistGeneralizationSet_4020(Package container, GeneralizationSet linkInstance, Generalization source, Generalization target) {
return true;
}
/**
* @generated
*/
public boolean canExistInstanceSpecification_4021(Package container, InstanceSpecification linkInstance, Slot source, Slot target) {
return true;
}
/**
* @generated
*/
public boolean canExistLink_4022() {
return true;
}
/**
* @generated
*/
public boolean canExistLink_4023() {
return true;
}
/**
* @generated
*/
public boolean canExistTimeObservationEvent_4024(TimeObservation source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistDurationObservationEvent_4025(DurationObservation source, NamedElement target) {
return true;
}
/**
* @generated
*/
public boolean canExistInformationFlow_4026(Package container, InformationFlow linkInstance, NamedElement source, NamedElement target) {
try {
//Information Flow source constraint
if(source != null) {
if(!((source instanceof Actor) || (source instanceof Node) || (source instanceof UseCase) || (source instanceof Artifact) || (source instanceof Class) || (source instanceof Component) || (source instanceof Port) || (source instanceof Property) || (source instanceof Interface) || (source instanceof Package) || (source instanceof ActivityNode) || (source instanceof ActivityPartition) || (source instanceof InstanceSpecification))) {
return false;
}
if(source instanceof InstanceSpecification) {
EList<Classifier> classes = ((InstanceSpecification)source).getClassifiers();
for(int i = 0; i < classes.size(); i++) {
if(classes.get(i) instanceof Relationship) {
return false;
}
}
}
}
//Information Flow target constraint
if(target != null) {
if(!((target instanceof Actor) || (target instanceof Node) || (target instanceof UseCase) || (target instanceof Artifact) || (target instanceof Class) || (target instanceof Component) || (target instanceof Port) || (target instanceof Property) || (target instanceof Interface) || (target instanceof Package) || (target instanceof ActivityNode) || (target instanceof ActivityPartition) || (target instanceof InstanceSpecification))) {
return false;
}
if(target instanceof InstanceSpecification) {
EList<Classifier> classes = ((InstanceSpecification)target).getClassifiers();
for(int i = 0; i < classes.size(); i++) {
if(classes.get(i) instanceof Relationship) {
return false;
}
}
}
}
return true;
} catch (Exception e) {
UMLDiagramEditorPlugin.getInstance().logError("Link constraint evaluation error", e); //$NON-NLS-1$
return false;
}
}
}
}