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/*******************************************************************************
* Copyright (c) 2010, 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.osgi.internal.serviceregistry;
import java.util.*;
public class ShrinkableEntrySetValueCollection extends AbstractCollection implements Collection {
private final Set extends Map.Entry, ? extends E>> entrySet;
public ShrinkableEntrySetValueCollection(Set extends Map.Entry, ? extends E>> e) {
if (e == null) {
throw new NullPointerException();
}
entrySet = e;
}
public void clear() {
entrySet.clear();
}
public boolean isEmpty() {
return entrySet.isEmpty();
}
public Iterator iterator() {
return new ValueIterator(entrySet.iterator());
}
public int size() {
return entrySet.size();
}
/**
* Iterator over the values of the entry set.
*/
static private final class ValueIterator implements Iterator {
private final Iterator extends Map.Entry, ? extends E>> iter;
ValueIterator(Iterator extends Map.Entry, ? extends E>> i) {
iter = i;
}
public boolean hasNext() {
return iter.hasNext();
}
public E next() {
final Map.Entry, ? extends E> entry = iter.next();
return entry.getValue();
}
public void remove() {
iter.remove();
}
}
}
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