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Java > Open Source Codes > com > sun > appserv > util > cache > mbeans > JmxLruCache


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the License). You may not use this file except in
5  * compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9  * glassfish/bootstrap/legal/CDDLv1.0.txt.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * Header Notice in each file and include the License file
15  * at glassfish/bootstrap/legal/CDDLv1.0.txt.
16  * If applicable, add the following below the CDDL Header,
17  * with the fields enclosed by brackets [] replaced by
18  * you own identifying information:
19  * "Portions Copyrighted [year] [name of copyright owner]"
20  *
21  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22  */
23
24 /**
25  * @Version $Id: JmxLruCache.java,v 1.4 2005/12/25 04:25:23 tcfujii Exp $
26  * Created on May 4, 2005 1:20 PM
27  */
28
29 package com.sun.appserv.util.cache.mbeans;
30
31 import com.sun.appserv.util.cache.LruCache;
32 import com.sun.appserv.util.cache.Constants;
33 /**
34  * This class provides implementation for JmxLruCache MBean
35  *
36  * @author Krishnamohan Meduri (Krishna.Meduri@Sun.com)
37  *
38  */
39 public class JmxLruCache extends JmxBaseCache implements JmxLruCacheMBean {
40
41     private LruCache lruCache;
42
43     public JmxLruCache(LruCache lruCache, String JavaDoc name) {
44         super(lruCache,name);
45         this.lruCache = lruCache;
46     }
47     /**
48      * Returns the current lenght of the LRU list
49      */
50     public Integer JavaDoc getLruListLength() {
51         return (Integer JavaDoc) lruCache.getStatByName(
52                                         Constants.STAT_LRUCACHE_LIST_LENGTH);
53     }
54
55     /**
56      * Returns the number of entries that have been trimmed
57      */
58     public Integer JavaDoc getTrimCount() {
59         return (Integer JavaDoc) lruCache.getStatByName(
60                                         Constants.STAT_LRUCACHE_TRIM_COUNT);
61     }
62 }
63
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