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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 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.client;
20  
21  import java.util.EventListener;
22  
23  import org.eclipse.jetty.client.api.ContentProvider;
24  
25  /**
26   * A {@link ContentProvider} that notifies listeners that content is available.
27   */
28  public interface AsyncContentProvider extends ContentProvider
29  {
30      /**
31       * @param listener the listener to be notified of content availability
32       */
33      public void setListener(Listener listener);
34  
35      /**
36       * A listener that is notified of content availability
37       */
38      public interface Listener extends EventListener
39      {
40          /**
41           * Callback method invoked when content is available
42           */
43          public void onContent();
44      }
45  }