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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with 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,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License.
18   *
19   */
20  package org.apache.mina.core.write;
21  
22  import java.net.SocketAddress;
23  
24  import org.apache.mina.core.filterchain.IoFilter;
25  import org.apache.mina.core.future.WriteFuture;
26  import org.apache.mina.core.session.IoSession;
27  
28  /**
29   * Represents write request fired by {@link IoSession#write(Object)}.
30   *
31   * @author The Apache MINA Project (dev@mina.apache.org)
32   * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (jeu, 26 jun 2008) $
33   */
34  public interface WriteRequest {
35      /**
36       * Returns the {@link WriteRequest} which was requested originally,
37       * which is not transformed by any {@link IoFilter}.
38       */
39      WriteRequest getOriginalRequest();
40  
41      /**
42       * Returns {@link WriteFuture} that is associated with this write request.
43       */
44      WriteFuture getFuture();
45      
46      /**
47       * Returns a message object to be written.
48       */
49      Object getMessage();
50  
51      /**
52       * Returns the destination of this write request.
53       *
54       * @return <tt>null</tt> for the default destination
55       */
56      SocketAddress getDestination();
57  }