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php设计模式 Adapter(适配器模式)_php技巧

WBOY
WBOYOriginal
2016-05-17 09:17:53894browse
复制代码 代码如下:

/**
* 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);
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