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Java > Open Source Codes > org > apache > activemq > broker > region > policy > NoSubscriptionRecoveryPolicy


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.broker.region.policy;
19
20 import org.apache.activemq.broker.ConnectionContext;
21 import org.apache.activemq.broker.region.MessageReference;
22 import org.apache.activemq.broker.region.Subscription;
23 import org.apache.activemq.broker.region.SubscriptionRecovery;
24 import org.apache.activemq.broker.region.Topic;
25 import org.apache.activemq.command.ActiveMQDestination;
26 import org.apache.activemq.command.Message;
27
28 /**
29  * This SubscriptionRecoveryPolicy disable recovery of messages.
30  *
31  * @org.apache.xbean.XBean
32  *
33  * @version $Revision$
34  */
35 public class NoSubscriptionRecoveryPolicy implements SubscriptionRecoveryPolicy {
36
37
38     public SubscriptionRecoveryPolicy copy() {
39         // This object is immutable
40 return this;
41     }
42
43     public boolean add(ConnectionContext context, MessageReference node) throws Exception JavaDoc {
44         return true;
45     }
46
47     public void recover(ConnectionContext context, Topic topic, SubscriptionRecovery sub) throws Exception JavaDoc {
48     }
49
50     public void start() throws Exception JavaDoc {
51     }
52
53     public void stop() throws Exception JavaDoc {
54     }
55
56     public Message[] browse(ActiveMQDestination dest) throws Exception JavaDoc{
57         return new Message[0];
58     }
59
60 }
61
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