/*****************************************************************************
* Copyright (c) 2011 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:
*
* Yann Tanguy (CEA LIST) yann.tanguy@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest;
import org.eclipse.uml2.uml.DirectedRelationship;
import org.eclipse.uml2.uml.Extend;
import org.eclipse.uml2.uml.Include;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.UseCase;
/**
* <pre>
*
* Edit helper class for {@link UseCase}
*
* Expected behavior:
* - Remove any related {@link Include} or {@link Extend}
*
* </pre>
*/
public class UseCaseEditHelper extends BehavioredClassifierEditHelper {
/**
* {@inheritDoc}
*/
@Override
protected ICommand getDestroyDependentsCommand(DestroyDependentsRequest req) {
UseCase elementToDelete = (UseCase)req.getElementToDestroy();
List<DirectedRelationship> relationships = new ArrayList<DirectedRelationship>();
// Get related includes
relationships.addAll(elementToDelete.getSourceDirectedRelationships(UMLPackage.eINSTANCE.getInclude()));
relationships.addAll(elementToDelete.getTargetDirectedRelationships(UMLPackage.eINSTANCE.getInclude()));
// Get related extends
relationships.addAll(elementToDelete.getSourceDirectedRelationships(UMLPackage.eINSTANCE.getExtend()));
relationships.addAll(elementToDelete.getTargetDirectedRelationships(UMLPackage.eINSTANCE.getExtend()));
// Return the command to destroy all these Include and Extend relationships
if(!relationships.isEmpty()) {
return req.getDestroyDependentsCommand(relationships);
}
return super.getDestroyDependentsCommand(req);
}
}