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php设计模式 建造者模式 与Adapter(适配器模式)

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Release: 2016-06-08 17:25:13
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php教程设计模式 建造者模式 与Adapter(适配器模式)

适配器模式
*
* 将一个类的接口转换成客户希望的另外一个接口,使用原本不兼容的而不能在一起工作的那些类可以在一起工作

建造者模式
*
* 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

/**
* 适配器模式
*
* 将一个类的接口转换成客户希望的另外一个接口,使用原本不兼容的而不能在一起工作的那些类可以在一起工作
*/

// 这个是原有的类型
class OldCache
{
public function __construct()
{
echo "OldCache construct
";
}

public function store($key,$value)
{
echo "OldCache store
";
}

public function remove($key)
{
echo "OldCache remove
";
}

public function fetch($key)
{
echo "OldCache fetch
";
}
}

interface Cacheable
{
public function set($key,$value);
public function get($key);
public function del($key);
}

class OldCacheAdapter implements Cacheable
{
private $_cache = null;
public function __construct()
{
$this->_cache = new OldCache();
}

public function set($key,$value)
{
return $this->_cache->store($key,$value);
}

public function get($key)
{
return $this->_cache->fetch($key);
}

public function del($key)
{
return $this->_cache->remove($key);
}
}

$objCache = new OldCacheAdapter();
$objCache->set("test",1);
$objCache->get("test");
$objCache->del("test",1);

php设计模式 Builder(建造者模式)

 

/**
* 建造者模式
*
* 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
*/
class Product
{
public $_type = null;
public $_size = null;
public $_color = null;

public function setType($type)
{
echo "set product type
";
$this->_type = $type;
}

public function setSize($size)
{
echo "set product size
";
$this->_size = $size;
}

public function setColor($color)
{
echo "set product color
";
$this->_color = $color;
}
}

$config = array(
"type"=>"shirt",
"size"=>"xl",
"color"=>"red",
);

// 没有使用bulider以前的处理
$oProduct = new Product();
$oProduct->setType($config['type']);
$oProduct->setSize($config['size']);
$oProduct->setColor($config['color']);


// 创建一个builder类
class ProductBuilder
{
var $_config = null;
var $_object = null;

public function ProductBuilder($config)
{
$this->_object = new Product();
$this->_config = $config;
}

public function build()
{
echo "--- in builder---
";
$this->_object->setType($this->_config['type']);
$this->_object->setSize($this->_config['size']);
$this->_object->setColor($this->_config['color']);
}

public function getProduct()
{
return $this->_object;
}
}

$objBuilder = new ProductBuilder($config);
$objBuilder->build();
$objProduct = $objBuilder->getProduct();

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