1 package org.apache.jcs.utils.struct;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 /***
23 * This is a node in the double linked list. It is stored as the value in the
24 * underlying map used by the LRUMap class.
25 * <p>
26 * @author aaronsm
27 */
28 public class LRUElementDescriptor
29 extends DoubleLinkedListNode
30 {
31 private static final long serialVersionUID = 8249555756363020156L;
32
33 /***
34 * <code>key</code>
35 */
36 private Object key;
37
38 /***
39 * @param key
40 * @param payloadP
41 */
42 public LRUElementDescriptor( Object key, Object payloadP )
43 {
44 super( payloadP );
45 this.setKey( key );
46 }
47
48 /***
49 * @param key
50 * The key to set.
51 */
52 public void setKey( Object key )
53 {
54 this.key = key;
55 }
56
57 /***
58 * @return Returns the key.
59 */
60 public Object getKey()
61 {
62 return key;
63 }
64
65 }