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/*****************************************************************************
* Copyright (c) 2012 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.emf.commands;
import java.util.Collection;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
/**
*
* This command allows to remove elements from a resource
*
*/
public class RemoveFromResourcecommand extends RecordingCommand {
/**
* the managed resource
*/
final private Resource resource;
/**
* the element to remove from the resource
*/
final private EObject toRemove;
/**
* the list of the elements to remove from the resource
*/
final private Collection<EObject> elementsToRemove;
/**
*
* Constructor.
*
* @param domain
* the editing domain
* @param resource
* the resource
* @param toRemove
* the element to remove
*/
public RemoveFromResourcecommand(final TransactionalEditingDomain domain, final Resource resource, final EObject toRemove) {
this(domain, resource, toRemove, null);
}
/**
*
* Constructor.
*
* @param domain
* the editing domain
* @param resource
* the resource
* @param elementsToRemove
* the list of the elements to remove
*/
public RemoveFromResourcecommand(final TransactionalEditingDomain domain, final Resource resource, final Collection<EObject> elementsToRemove) {
this(domain, resource, null, elementsToRemove);
}
/**
*
* Constructor.
*
* @param domain
* the editing domain
* @param resource
* the resource
* @param toRemove
* the element to remove
* @param elementsToRemove
* the list of the elements to remove
*/
protected RemoveFromResourcecommand(final TransactionalEditingDomain domain, final Resource resource, final EObject toRemove, final Collection<EObject> elementsToRemove) {
super(domain, "Remove an EObject from a resource");
this.resource = resource;
this.toRemove = toRemove;
this.elementsToRemove = elementsToRemove;
}
/**
*
* remove the element(s) of the resource
*
*/
@Override
protected void doExecute() {
try {
if(this.toRemove != null) {
this.resource.getContents().remove(toRemove);
}
if(this.elementsToRemove != null) {
this.resource.getContents().removeAll(elementsToRemove);
}
} catch (Exception e) {
int i = 0;
i++;
}
}
/**
*
* @see org.eclipse.emf.common.command.AbstractCommand#canExecute()
*
* @return
*/
@Override
public boolean canExecute() {
boolean result = super.canExecute();
if(toRemove == null && elementsToRemove == null) {
return false;
}
return result;
}
}
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