01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.client;
22
23 import org.apache.qpid.framing.AMQShortString;
24
25 import javax.jms.JMSException;
26 import javax.jms.TemporaryTopic;
27 import java.util.UUID;
28
29 /**
30 * AMQ implementation of TemporaryTopic.
31 */
32 class AMQTemporaryTopic extends AMQTopic implements TemporaryTopic, TemporaryDestination
33 {
34
35 private final AMQSession _session;
36 private boolean _deleted;
37 /**
38 * Create new temporary topic.
39 */
40 public AMQTemporaryTopic(AMQSession session)
41 {
42 super(session.getTemporaryTopicExchangeName(),new AMQShortString("tmp_" + UUID.randomUUID()));
43 _session = session;
44 }
45
46 /**
47 * @see javax.jms.TemporaryTopic#delete()
48 */
49 public void delete() throws JMSException
50 {
51 if(_session.hasConsumer(this))
52 {
53 throw new JMSException("Temporary Topic has consumers so cannot be deleted");
54 }
55
56 _deleted = true;
57 // Currently TemporaryQueue is set to be auto-delete which means that the queue will be deleted
58 // by the server when there are no more subscriptions to that queue. This is probably not
59 // quite right for JMSCompliance.
60 }
61
62 public AMQSession getSession()
63 {
64 return _session;
65 }
66
67 public boolean isDeleted()
68 {
69 return _deleted;
70 }
71
72 }
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