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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.websocket.api.extensions;
20  
21  import org.eclipse.jetty.websocket.api.WriteCallback;
22  
23  /**
24   * Interface for dealing with frames outgoing to the network (eventually)
25   */
26  public interface OutgoingFrames
27  {
28      /**
29       * A frame, and optional callback, intended for the network.
30       * <p>
31       * Note: the frame can undergo many transformations in the various layers and extensions present in the implementation.
32       * <p>
33       * If you are implementing a mutation, you are obliged to handle the incoming WriteCallback appropriately.
34       * 
35       * @param frame
36       *            the frame to eventually write to the network.
37       * @param callback
38       *            the optional callback to use for success/failure of the network write operation. Can be null.
39       */
40      void outgoingFrame(Frame frame, WriteCallback callback);
41  }