[php]php设计模式 Builder(建造者模式)

<?php
 2 /**
 3  * 建造者模式
 4  * 
 5  * 将一个复杂对象的构建与它的表示分离,使用同样的构建过程可以创建不同的表示
 6 */
 7 class Product
 8 {
 9 public$_type=null;
10 public$_size=null;
11 public$_color=null;
12 
13 publicfunctionsetType($type)
14     {
15 echo"set product type<br/>";
16 $this->_type =$type;
17     }
18 
19 publicfunction setSize($size)
20     {
21 echo"set product size<br/>";
22 $this->_size =$size;
23     }
24 
25 publicfunction setColor($color)
26     {
27 echo"set product color<br/>";
28 $this->_color =$color;
29     }
30 }
31 
32 $config=array(
33 "type"=>"shirt",
34 "size"=>"xl",
35 "color"=>"red",
36 );
37 
38 // 没有使用bulider以前的处理
39 $oProduct=new Product();
40 $oProduct->setType($config['type']);
41 $oProduct->setSize($config['size']);
42 $oProduct->setColor($config['color']);
43 
44 
45 // 创建一个builder类
46 class ProductBuilder
47 {
48 var$_config=null;
49 var$_object=null;
50 
51 publicfunction ProductBuilder($config)
52     {
53 $this->_object =new Product();
54 $this->_config =$config;
55     }
56 
57 publicfunction build()
58     {
59 echo"--- in builder---<br/>";
60 $this->_object->setType($this->_config['type']);
61 $this->_object->setSize($this->_config['size']);
62 $this->_object->setColor($this->_config['color']);
63     }
64 
65 publicfunction getProduct()
66     {
67 return$this->_object;
68     }
69 }
70 
71 $objBuilder=new ProductBuilder($config);
72 $objBuilder->build();
73 $objProduct=$objBuilder->getProduct();