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Java > Open Source Codes > org > objectweb > joram > mom > notifications > SubscribeRequest


1 /*
2  * JORAM: Java(TM) Open Reliable Asynchronous Messaging
3  * Copyright (C) 2001 - ScalAgent Distributed Technologies
4  * Copyright (C) 1996 - Dyade
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA.
20  *
21  * Initial developer(s): Frederic Maistre (INRIA)
22  * Contributor(s):
23  */

24 package org.objectweb.joram.mom.notifications;
25
26
27 /**
28  * A <code>SubscribeRequest</code> instance is used by a client agent
29  * for subscribing to a topic.
30  */

31 public class SubscribeRequest extends AbstractRequest
32 {
33   /**
34    * Selector for filtering messages, null or empty string for no selection.
35    */

36   private String JavaDoc selector;
37
38
39   /**
40    * Constructs a <code>SubscribeRequest</code> instance.
41    *
42    * @param clientContext Identifies a client context.
43    * @param requestId Request identifier.
44    * @param selector Selector expression for filtering messages, null or
45    * empty string for no selection.
46    */

47   public SubscribeRequest(int clientContext, int requestId, String JavaDoc selector)
48   {
49     super(clientContext, requestId);
50     this.selector = selector;
51   }
52
53
54   /** Returns the selector. */
55   public String JavaDoc getSelector()
56   {
57     return selector;
58   }
59 }
60
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