org.apache.ace.deployment/src/org/apache/ace/deployment/provider/repositorybased/LRUMap.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.ace.deployment.provider.repositorybased;

import java.util.LinkedHashMap;

public class LRUMap<K, V> extends LinkedHashMap<K, V> {
	private static final int INITIAL = 64;
	private static final int MAX = 1024;
	private static final float LOADFACTOR = 0.75f;

	public LRUMap() {
		super(INITIAL, LOADFACTOR, true);
	}
	
	@Override
	protected boolean removeEldestEntry(java.util.Map.Entry<K, V> eldest) {
		return size() > MAX;
	}
}