/*
* Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) 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:
* bstefanescu
*
* $Id$
*/
package org.eclipse.ecr.core.api.model.impl.osm;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.NoSuchElementException;
import java.util.Queue;
/**
* @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
*
*/
public class TypeHierarchyIterator implements Iterator<Class<?>> {
final Queue<Class<?>> queue;
Class<?> type;
public TypeHierarchyIterator(Class<?> type) {
this.type = type;
queue = new LinkedList<Class<?>>();
}
@Override
public boolean hasNext() {
return type != null;
}
@Override
public Class<?> next() {
if (type == null) {
throw new NoSuchElementException();
}
Class<?> superClass = type.getSuperclass();
if (superClass != null) {
queue.add(superClass);
}
for (Class<?> itf : type.getInterfaces()) {
queue.add(itf);
}
Class<?> prev = type;
type = queue.poll();
return prev;
}
@Override
public void remove() {
throw new UnsupportedOperationException("remove not supported");
}
}