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Java > Open Source Codes > org > jboss > mq > sm > none > NullStateManager


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.mq.sm.none;
23
24 import java.util.Collection JavaDoc;
25 import java.util.Collections JavaDoc;
26
27 import javax.jms.JMSException JavaDoc;
28
29 import org.jboss.mq.DurableSubscriptionID;
30 import org.jboss.mq.SpyTopic;
31 import org.jboss.mq.sm.AbstractStateManager;
32 import org.jboss.mq.sm.StateManager;
33 import org.jboss.util.NotImplementedException;
34
35 /**
36  * NullStateManager.
37  *
38  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
39  * @version $Revision: 40901 $
40  */
41 public class NullStateManager extends AbstractStateManager
42 {
43    protected void checkLoggedOnClientId(String JavaDoc clientID) throws JMSException JavaDoc
44    {
45       return;
46    }
47
48    protected DurableSubscription getDurableSubscription(DurableSubscriptionID sub) throws JMSException JavaDoc
49    {
50       throw new NotImplementedException("Durable subscriptions are not supported");
51    }
52
53    public Collection JavaDoc getDurableSubscriptionIdsForTopic(SpyTopic topic) throws JMSException JavaDoc
54    {
55       return Collections.EMPTY_SET;
56    }
57
58    protected String JavaDoc getPreconfClientId(String JavaDoc login, String JavaDoc passwd) throws JMSException JavaDoc
59    {
60       return null;
61    }
62
63    protected void removeDurableSubscription(DurableSubscription ds) throws JMSException JavaDoc
64    {
65       throw new NotImplementedException("Durable subscriptions are not supported");
66    }
67
68    protected void saveDurableSubscription(DurableSubscription ds) throws JMSException JavaDoc
69    {
70       throw new NotImplementedException("Durable subscriptions are not supported");
71    }
72
73    public StateManager getInstance()
74    {
75       return this;
76    }
77 }
78
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