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Java > Open Source Codes > com > sun > appserv > management > util > jmx > ObjectNameComparator


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 package com.sun.appserv.management.util.jmx;
24
25 import javax.management.ObjectName JavaDoc;
26
27 public final class ObjectNameComparator implements java.util.Comparator JavaDoc<ObjectName JavaDoc>
28 {
29     public static final ObjectNameComparator INSTANCE = new ObjectNameComparator();
30     
31     private ObjectNameComparator() {}
32     
33         public int
34     compare( final ObjectName JavaDoc o1, final ObjectName JavaDoc o2 )
35     {
36         int result = 0;
37         
38         if ( o1 == null && o2 == null )
39         {
40             result = 0;
41         }
42         else if ( o1 == null )
43         {
44             result = -1;
45         }
46         else if ( o2 == null )
47         {
48             result = 1;
49         }
50         else
51         {
52             final String JavaDoc name1 = JMXUtil.toString( o1 );
53             final String JavaDoc name2 = JMXUtil.toString( o2 );
54             
55             result = name1.toString().compareTo( name2.toString() );
56         }
57         
58         return result;
59     }
60     
61         public boolean
62     equals( final Object JavaDoc other )
63     {
64         return( other instanceof ObjectNameComparator );
65     }
66 }
67
68
69
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