001package org.apache.commons.jcs.utils.struct; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022/** 023 * This is a node in the double linked list. It is stored as the value in the underlying map used by 024 * the LRUMap class. 025 */ 026public class LRUElementDescriptor<K, V> 027 extends DoubleLinkedListNode<V> 028{ 029 /** Don't change. */ 030 private static final long serialVersionUID = 8249555756363020156L; 031 032 /** The key value */ 033 private K key; 034 035 /** 036 * @param key 037 * @param payloadP 038 */ 039 public LRUElementDescriptor(K key, V payloadP) 040 { 041 super(payloadP); 042 this.setKey(key); 043 } 044 045 /** 046 * @param key The key to set. 047 */ 048 public void setKey(K key) 049 { 050 this.key = key; 051 } 052 053 /** 054 * @return Returns the key. 055 */ 056 public K getKey() 057 { 058 return key; 059 } 060}