/*
* Copyright (c) 2007, 2009, 2011, 2012 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.internal.cdo.util;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import java.util.Iterator;
import java.util.Set;
/**
* @author Eike Stepper
*/
public class CrossReferencesPackageClosure extends PackageClosure
{
public CrossReferencesPackageClosure()
{
}
@Override
protected void handleEPackage(EPackage ePackage, Set<EPackage> visited)
{
visited.add(ePackage);
for (Iterator<EObject> it = ePackage.eAllContents(); it.hasNext();)
{
EObject content = it.next();
collectCrossReferences(content, visited);
}
}
protected void collectCrossReferences(EObject content, Set<EPackage> visited)
{
EList<EObject> crossReferences = content.eCrossReferences();
for (EObject crossReference : crossReferences)
{
EPackage crossReferencePackage = crossReference.eClass().getEPackage();
if (!visited.contains(crossReferencePackage))
{
handleEPackage(crossReferencePackage, visited);
}
}
}
}