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source: OpenPNE/branches/ebihara/prj_pnebiz/lib/include/HTTP/Request/Listener.php @ 557

Last change on this file since 557 was 557, checked in by ebihara, 14 years ago

create prj_pnebiz

File size: 3.7 KB
Line 
1<?php
2// +-----------------------------------------------------------------------+
3// | Copyright (c) 2002-2003, Richard Heyes                                |
4// | All rights reserved.                                                  |
5// |                                                                       |
6// | Redistribution and use in source and binary forms, with or without    |
7// | modification, are permitted provided that the following conditions    |
8// | are met:                                                              |
9// |                                                                       |
10// | o Redistributions of source code must retain the above copyright      |
11// |   notice, this list of conditions and the following disclaimer.       |
12// | o Redistributions in binary form must reproduce the above copyright   |
13// |   notice, this list of conditions and the following disclaimer in the |
14// |   documentation and/or other materials provided with the distribution.|
15// | o The names of the authors may not be used to endorse or promote      |
16// |   products derived from this software without specific prior written  |
17// |   permission.                                                         |
18// |                                                                       |
19// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   |
20// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     |
21// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
22// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT  |
23// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
24// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT      |
25// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
26// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT   |
28// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  |
30// |                                                                       |
31// +-----------------------------------------------------------------------+
32// | Author: Alexey Borzov <avb@php.net>                                  |
33// +-----------------------------------------------------------------------+
34//
35// $Id: Listener.php,v 1.2 2003/10/26 10:28:29 avb Exp $
36//
37
38/**
39 * This class implements the Observer part of a Subject-Observer
40 * design pattern. It listens to the events sent by a
41 * HTTP_Request or HTTP_Response instance.
42 *
43 * @package HTTP_Request
44 * @author  Alexey Borzov <avb@php.net>
45 * @version $Revision: 1.2 $
46 */
47class HTTP_Request_Listener 
48{
49   /**
50    * A listener's identifier
51    * @var string
52    */
53    var $_id;
54
55   /**
56    * Constructor, sets the object's identifier
57    *
58    * @access public
59    */
60    function HTTP_Request_Listener()
61    {
62        $this->_id = md5(uniqid('http_request_', 1));
63    }
64
65
66   /**
67    * Returns the listener's identifier
68    *
69    * @access public
70    * @return string
71    */
72    function getId()
73    {
74        return $this->_id;
75    }
76
77
78   /**
79    * This method is called when Listener is notified of an event
80    *
81    * @access   public
82    * @param    object  an object the listener is attached to
83    * @param    string  Event name
84    * @param    mixed   Additional data
85    * @abstract
86    */
87    function update(&$subject, $event, $data = null)
88    {
89        echo "Notified of event: '$event'\n";
90        if (null !== $data) {
91            echo "Additional data: ";
92            var_dump($data);
93        }
94    }
95}
96?>
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