/*****************************************************************************
* 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:
* Mathieu Velten (Atos Origin) mathieu.velten@atosorigin.com - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper.advice;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest;
import org.eclipse.papyrus.uml.diagram.common.helper.DurationConstraintHelper;
import org.eclipse.papyrus.uml.diagram.common.helper.DurationObservationHelper;
import org.eclipse.papyrus.uml.diagram.common.helper.TimeConstraintHelper;
import org.eclipse.papyrus.uml.diagram.common.helper.TimeObservationHelper;
import org.eclipse.papyrus.infra.core.utils.PapyrusEcoreUtils;
import org.eclipse.uml2.uml.Event;
import org.eclipse.uml2.uml.OccurrenceSpecification;
/**
* Helper advice for all {@link OccurrenceSpecification} elements.
*/
public class OccurrenceSpecificationHelperAdvice extends AbstractEditHelperAdvice {
/**
* <pre>
* Add a command to destroy :
* - {@link Event} referenced by the {@link OccurrenceSpecification} to delete if unused
* - related time elements
* - linked general ordering
* </pre>
*
* @see org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice#getBeforeDestroyDependentsCommand(org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest)
*
* @param request
* the request
* @return the command to execute before the edit helper work is done
*/
@Override
protected ICommand getBeforeDestroyDependentsCommand(DestroyDependentsRequest request) {
//FIXME : change for UML 2.4
// List<EObject> dependentsToDestroy = new ArrayList<EObject>();
//
// OccurrenceSpecification os = (OccurrenceSpecification)request.getElementToDestroy();
// Event event = os.getEvent();
//
// // Delete referenced event if it is not referenced itself by another element.
// if((event != null) && (PapyrusEcoreUtils.isOnlyUsage(event, os))) {
// dependentsToDestroy.add(event);
// }
//
// // delete linked time elements
// dependentsToDestroy.addAll(TimeObservationHelper.getTimeObservations(os));
// dependentsToDestroy.addAll(TimeConstraintHelper.getTimeConstraintsOn(os));
// dependentsToDestroy.addAll(DurationObservationHelper.getDurationObservationsOn(os));
// dependentsToDestroy.addAll(DurationConstraintHelper.getDurationConstraintsOn(os));
//
// // delete linked general ordering
// dependentsToDestroy.addAll(os.getToBefores());
// dependentsToDestroy.addAll(os.getToAfters());
//
// if(!dependentsToDestroy.isEmpty()) {
// return request.getDestroyDependentsCommand(dependentsToDestroy);
// }
return null;
}
}