php设计模式 Mediator (中介者模式)

简介：这是php设计模式 Mediator (中介者模式)的详细页面，介绍了和php,有关的知识、技巧、经验，和一些php源码等。

class='pingjiaF' frameborder='0' src='http://biancheng.dnbcw.info/pingjia.php?id=339375' scrolling='no'>

1 <?php
2 /**
3  * 中介者模式
4  *
5  * 用一个中介对象来封装一系列的对象交互,使各对象不需要显式地相互引用从而使其耦合松散,而且可以独立地改变它们之间的交互
6  */
7 abstract class Mediator
8 {
9     abstract public function send($message,$colleague);
10 }
11
12 abstract class Colleague
13 {
14     private $_mediator = null;
15
16     public function Colleague($mediator)
17     {
18         $this->_mediator = $mediator;
19     }
20
21     public function send($message)
22     {
23         $this->_mediator->send($message,$this);
24     }
25
26     abstract public function notify($message);
27 }
28
29 class ConcreteMediator extends Mediator
30 {
31     private $_colleague1 = null;
32     private $_colleague2 = null;
33
34     public function send($message,$colleague)
35     {
36         if($colleague == $this->_colleague1)
37         {
38             $this->_colleague1->notify($message);
39         } else {
40             $this->_colleague2->notify($message);
41         }
42     }
43
44     public function set($colleague1,$colleague2)
45     {
46         $this->_colleague1 = $colleague1;
47         $this->_colleague2 = $colleague2;
48     }
49 }
50
51 class Colleague1 extends Colleague
52 {
53     public function notify($message)
54     {
55         echo "Colleague1 Message is :".$message."<br/>";
56     }
57 }
58
59 class Colleague2 extends Colleague
60 {
61     public function notify($message)
62     {
63         echo "Colleague2 Message is :".$message."<br/>";
64     }
65 }
66
67 //
68 $objMediator = new ConcreteMediator();
69 $objC1 = new Colleague1($objMediator);
70 $objC2 = new Colleague2($objMediator);
71
72 $objMediator->set($objC1,$objC2);
73
74 $objC1->send("to c2 from c1");
75 $objC2->send("to c1 from c2");

爱J2EE关注Java迈克尔杰克逊视频站JSON在线工具
http://biancheng.dnbcw.info/php/339375.html pageNo:8