/*****************************************************************************
* 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 org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.papyrus.uml.service.types.command.SubstitutionReorientCommand;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Substitution;
import org.eclipse.uml2.uml.UMLPackage;
/**
* This helper is used to set the source and the target for a {@link Substitution}
*/
public class SubstitutionEditHelper extends DependencyEditHelper {
/**
* {@inheritDoc}
*/
@Override
protected EReference getSourceReference() {
return UMLPackage.eINSTANCE.getSubstitution_SubstitutingClassifier();
}
/**
* {@inheritDoc}
*/
@Override
protected EReference getTargetReference() {
return UMLPackage.eINSTANCE.getSubstitution_Contract();
}
/**
* {@inheritDoc}
*/
@Override
protected boolean canCreate(EObject source, EObject target) {
if ((source != null) && !(source instanceof Classifier)) {
return false;
}
if ((target != null) && !(target instanceof Classifier)) {
return false;
}
if ((source != null) && (target != null) && (source == target)) {
return false;
}
return true;
}
/**
* {@inheritDoc}
*/
@Override
protected ICommand getReorientRelationshipCommand(ReorientRelationshipRequest req) {
return new SubstitutionReorientCommand(req);
}
}