more refactoring on the framework.

laravel/cache/drivers/memcached.php

@@ -0,0 +1,80 @@
+<?php namespace Laravel\Cache\Drivers;
+
+use Memcache;
+use Laravel\Config;
+
+class Memcached extends Driver {
+
+	/**
+	 * The Memcache instance.
+	 *
+	 * @var Memcache
+	 */
+	private $memcache;
+
+	/**
+	 * The cache key from the cache configuration file.
+	 *
+	 * @var string
+	 */
+	private $key;
+
+	/**
+	 * Create a new Memcached cache driver instance.
+	 *
+	 * @param  Memcache  $memcache
+	 * @return void
+	 */
+	public function __construct(Memcache $memcache, $key)
+	{
+		$this->key = $key;
+		$this->memcache = $memcache;
+	}
+
+	/**
+	 * Determine if an item exists in the cache.
+	 *
+	 * @param  string  $key
+	 * @return bool
+	 */
+	public function has($key)
+	{
+		return ( ! is_null($this->get($key)));
+	}
+
+	/**
+	 * Retrieve an item from the cache driver.
+	 *
+	 * @param  string  $key
+	 * @return mixed
+	 */
+	protected function retrieve($key)
+	{
+		if (($cache = $this->memcache->get($this->key.$key)) !== false) return $cache;
+	}
+
+	/**
+	 * Write an item to the cache for a given number of minutes.
+	 *
+	 * @param  string  $key
+	 * @param  mixed   $value
+	 * @param  int     $minutes
+	 * @return void
+	 */
+	public function put($key, $value, $minutes)
+	{
+		$this->memcache->set($this->key.$key, $value, 0, $minutes * 60);
+	}
+
+	/**
+	 * Delete an item from the cache.
+	 *
+	 * @param  string  $key
+	 * @return void
+	 */
+	public function forget($key)
+	{
+		$this->memcache->delete($this->key.$key);
+	}
+
+}