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1   /*** 
2    * 
3    * Copyright 2004 Protique Ltd
4    * 
5    * Licensed under the Apache License, Version 2.0 (the "License"); 
6    * you may not use this file except in compliance with the License. 
7    * You may obtain a copy of the License at 
8    * 
9    * http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS, 
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
14   * See the License for the specific language governing permissions and 
15   * limitations under the License. 
16   * 
17   **/
18  package org.codehaus.activemq.service;
19  
20  import javax.jms.JMSException;
21  
22  
23  /***
24   * A Topic based {@link MessageContainer}
25   *
26   * @version $Revision: 1.5 $
27   */
28  public interface TopicMessageContainer extends MessageContainer {
29  
30  
31      /***
32       * Sets the last acknowleged message ID for the given subscriber in this
33       * container so that if we shut down and recover we know where to start
34       * replaying messages from.
35       *
36       * @param subscription
37       * @param messageIdentity
38       */
39      public void setLastAcknowledgedMessageID(Subscription subscription, MessageIdentity messageIdentity) throws JMSException;
40  
41      /***
42       * A durable subscription has started so recovery any messages that are required.
43       * This method should find the last acknowledged message for the given subscription
44       * and then iterate through any further messages and those that match the subscription
45       * should be dispatched to this subscription so that they can be dispatched in the future
46       *
47       * @param subscription
48       */
49      public void recoverSubscription(Subscription subscription) throws JMSException;
50  }