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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.websocket.common.events;
20  
21  import org.eclipse.jetty.websocket.api.WebSocketPolicy;
22  
23  /**
24   * A specific implementation of a EventDriver.
25   */
26  public interface EventDriverImpl
27  {
28      /**
29       * Create the EventDriver based on this implementation.
30       * 
31       * @param websocket
32       *            the websocket to wrap
33       * @param policy
34       *            the policy to use
35       * @return the created EventDriver
36       * @throws Throwable
37       *             if unable to create the EventDriver
38       */
39      EventDriver create(Object websocket, WebSocketPolicy policy) throws Throwable;
40  
41      /**
42       * human readable string describing the rule that would support this EventDriver.
43       * <p>
44       * Used to help developer with possible object annotations, listeners, or base classes.
45       * 
46       * @return the human readable description of this event driver rule(s).
47       */
48      String describeRule();
49  
50      /**
51       * Test for if this implementation can support the provided websocket.
52       * 
53       * @param websocket
54       *            the possible websocket to test
55       * @return true if implementation can support it, false if otherwise.
56       */
57      boolean supports(Object websocket);
58  }