/*******************************************************************************
* Copyright (c) 2000, 2009 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.cdt.internal.core.model;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.core.model.IWorkingCopy;
/**
* Destroys a working copy (remove it from its cache if it is shared)
* and signal its removal through a delta.
*/
public class DestroyWorkingCopyOperation extends CModelOperation {
public DestroyWorkingCopyOperation(ICElement workingCopy) {
super(new ICElement[] {workingCopy});
}
/**
* @exception CModelException if setting the source
* of the original translation unit fails
*/
@Override
protected void executeOperation() throws CModelException {
WorkingCopy workingCopy = getWorkingCopy();
workingCopy.close();
// if original element is not on classpath flush it from the cache
ITranslationUnit originalElement = workingCopy.getOriginalElement();
if (!workingCopy.getParent().exists()) {
originalElement.close();
}
// remove working copy from the cache if it is shared
IWorkingCopy wc = CModelManager.getDefault().removeSharedWorkingCopy(workingCopy.bufferFactory, originalElement);
if (wc != null) {
//System.out.println("Destroying shared working copy " + workingCopy.toStringWithAncestors());//$NON-NLS-1$
//CModelManager.getDefault().fire(delta, ElementChangedEvent.POST_RECONCILE);
}
// report C deltas
CElementDelta delta = new CElementDelta(this.getCModel());
delta.removed(workingCopy);
addDelta(delta);
removeReconcileDelta(workingCopy);
}
/**
* Returns the working copy this operation is working on.
*/
protected WorkingCopy getWorkingCopy() {
return (WorkingCopy)getElementToProcess();
}
/**
* @see CModelOperation#isReadOnly
*/
@Override
public boolean isReadOnly() {
return true;
}
}