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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 org.eclipse.emf.common.command.AbstractCommand;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
/**
*
* This command allows to add an EObject to a resource
*
*/
public class AddToResourceCommand extends AbstractCommand {
/**
* the resource
*/
private final Resource resource;
/**
* the object to add to the resource
*/
private final EObject toAdd;
/**
*
* Constructor.
*
* @param resource
* the resource
* @param toAdd
* the object to add to the resource
*/
public AddToResourceCommand(final Resource resource, final EObject toAdd) {
this.resource = resource;
this.toAdd = toAdd;
setLabel("Add an object to a resource");
}
/**
*
* @see org.eclipse.emf.common.command.Command#execute()
*
*/
public void execute() {
this.resource.getContents().add(this.toAdd);
}
/**
*
* @see org.eclipse.emf.common.command.Command#redo()
*
*/
public void redo() {
execute();
}
/**
*
* @see org.eclipse.emf.common.command.AbstractCommand#prepare()
*
*/
@Override
protected boolean prepare() {
return true;
}
/**
*
* @see org.eclipse.emf.common.command.AbstractCommand#undo()
*
*/
@Override
public void undo() {
this.resource.getContents().remove(this.toAdd);
}
/**
*
* @see org.eclipse.emf.common.command.AbstractCommand#canExecute()
*
*/
@Override
public boolean canExecute() {
return super.canExecute() && this.resource != null;
}
}
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