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1   /*
2    * $Id: MessageRequester.java 10489 2008-01-23 17:53:38Z dfeist $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
5    *
6    * The software in this package is published under the terms of the CPAL v1.0
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  
11  package org.mule.api.transport;
12  
13  import org.mule.api.lifecycle.Disposable;
14  
15  /**
16   * Combine {@link org.mule.api.transport.MessageRequesting} with
17   * various lifecycle methods for the actual instances doing message sending.
18   */
19  public interface MessageRequester extends Disposable, Connectable, MessageRequesting
20  {
21  
22      /**
23       * This method can perform necessary state updates before any of the
24       * {@link org.mule.api.transport.MessageDispatching} methods are invoked.
25       *
26       * @see {@link org.mule.api.transport.MessageDispatcherFactory#activate(org.mule.api.endpoint.ImmutableEndpoint, org.mule.api.transport.MessageDispatcher)}
27       */
28      void activate();
29  
30      /**
31       * After receiving a message, the dispatcher can use this method e.g. to
32       * clean up its internal state (if it has any) or return pooled resources to
33       * whereever it got them during {@link #activate()}.
34       *
35       * @see {@link org.mule.api.transport.MessageDispatcherFactory#passivate(org.mule.api.endpoint.ImmutableEndpoint, org.mule.api.transport.MessageDispatcher)}
36       */
37      void passivate();
38  
39      /**
40       * Determines whether this dispatcher can be reused after message receiving.
41       *
42       * @return <code>true</code> if this dispatcher can be reused,
43       *         <code>false</code> otherwise (for example when
44       *         {@link org.mule.api.lifecycle.Disposable#dispose()} has been called because an Exception was
45       *         raised)
46       */
47      boolean validate();
48  
49      /**
50       * Gets the connector for this dispatcher
51       *
52       * @return the connector for this dispatcher
53       */
54      Connector getConnector();
55  
56  }