1 /*
2 * Copyright 2001-2004 The Apache Software Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.commons.cache.adt;
17
18 /**
19 * A simple {@link Listable} supporting doubly-linked
20 * lists of arbitrary {@link Object}s.
21 *
22 * @version $Id: WListableObject.java 155435 2005-02-26 13:17:27Z dirkv $
23 * @author Rodney Waldhoff
24 */
25 public class WListableObject extends WListableBase implements Listable, Cloneable {
26 /**
27 * Equivalent to {@link #WListableObject(java.lang.Object,Listable,Listable) <tt>WListableObject(val,null,null)</tt>}.
28 */
29 public WListableObject(Object val) {
30 this(val,null,null);
31 }
32
33 /**
34 * @param val my value
35 * @param next the next Listable.
36 */
37 public WListableObject(Object val, Listable prev, Listable next) {
38 super(prev,next);
39 _val = val;
40 }
41
42 /** My value. */
43 protected Object _val = null;
44
45 /**
46 * Return the {@link Object} I'm wrapping.
47 * @return the {@link Object} I'm wrapping.
48 */
49 public Object getValue() {
50 return _val;
51 }
52
53 /**
54 * Set the {@link Object} I'm wrapping.
55 * @param the {@link Object} to wrap.
56 */
57 public void setValue(Object obj) {
58 _val = obj;
59 }
60 }