/* * * * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com) * * * * 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. * * * * For more information: http://www.orientechnologies.com * */ package com.orientechnologies.common.collection; import java.util.LinkedHashMap; import java.util.Map; /** * The most simpler LRU cache implementation in Java. */ public class OLRUCache<K, V> extends LinkedHashMap<K, V> { private static final long serialVersionUID = 0; final private int cacheSize; public OLRUCache(final int iCacheSize) { super(16, (float) 0.75, true); this.cacheSize = iCacheSize; } protected boolean removeEldestEntry(final Map.Entry<K, V> eldest) { return size() >= cacheSize; } }