com.hazelcast.client.LightKeySet Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2010, Hazel Ltd. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.hazelcast.client;
import java.util.AbstractCollection;
import java.util.Iterator;
import java.util.Set;
public class LightKeySet extends AbstractCollection implements Set {
final Set realSet;
final EntryHolder proxy;
public LightKeySet(EntryHolder proxy, Set set) {
this.proxy = proxy;
this.realSet = set;
}
@Override
public Iterator iterator() {
final Iterator iterator = realSet.iterator();
return new Iterator() {
volatile E lastEntry;
public boolean hasNext() {
return iterator.hasNext();
}
public E next() {
lastEntry = iterator.next();
return lastEntry;
}
public void remove() {
iterator.remove();
proxy.remove(lastEntry);
}
};
}
@Override
public int size() {
return realSet.size();
}
}