/******************************************************************************* | |
* Copyright (c) 2005, 2012 IBM Corporation and others. | |
* 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: | |
* IBM Corporation - initial API and implementation | |
*******************************************************************************/ | |
package org.eclipse.bpel.ui.commands; | |
import org.eclipse.bpel.ui.adapters.IContainer; | |
import org.eclipse.bpel.ui.commands.util.AutoUndoCommand; | |
import org.eclipse.bpel.ui.util.BPELUtil; | |
import org.eclipse.emf.ecore.EObject; | |
/** | |
* @author IBM Original Contribution. | |
* @author Michal Chmielewski (michal.chmielewski@oracle.com) | |
* @date Aug 16, 2007 | |
*/ | |
public class OrphanChildCommand extends AutoUndoCommand { | |
private EObject fChild; | |
private EObject fParent; | |
private IContainer<EObject> fContainer; | |
/** | |
* Brand new shiny OrphanChildCommand. | |
* @param child | |
*/ | |
public OrphanChildCommand (EObject child) { | |
super(child.eContainer()); | |
fChild = child; | |
fParent = child.eContainer(); | |
fContainer = BPELUtil.adapt(fParent, IContainer.class); | |
} | |
/** | |
* @see org.eclipse.bpel.ui.commands.util.AutoUndoCommand#canDoExecute() | |
*/ | |
@Override | |
public boolean canDoExecute() { | |
if (fChild == null || fParent == null || fContainer == null) { | |
return false; | |
} | |
return true; | |
} | |
/** | |
* @see org.eclipse.bpel.ui.commands.util.AutoUndoCommand#doExecute() | |
*/ | |
@Override | |
public void doExecute() { | |
if (!canExecute()) { | |
throw new IllegalStateException(); | |
} | |
fContainer.removeChild(fParent, fChild); | |
} | |
} |