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Signed-off-by:沈海生 <haisheng.shen@yoho.cn>

@@ -68,7 +68,7 @@ class CacheRedis extends Root implements CacheInterface
      * @return Redis
      * @return Redis
      * @throws DebugException
      * @throws DebugException
      */
      */
-    private function init()
+    final private function init()
     {
     {
         if (isset($this->redisInstances[$this->persistentID])) {
         if (isset($this->redisInstances[$this->persistentID])) {
             $redis = $this->redisInstances[$this->persistentID];
             $redis = $this->redisInstances[$this->persistentID];
@@ -164,8 +164,8 @@ class CacheRedis extends Root implements CacheInterface
 
 
     /**
     /**
      * 设置key-value并设置过期时间
      * 设置key-value并设置过期时间
-     * @param $key
-     * @param $val
+     * @param string $key
+     * @param string $val
      * @param int $timeout 过期时间,单位：秒
      * @param int $timeout 过期时间,单位：秒
      * @return bool
      * @return bool
      * @throws DebugException
      * @throws DebugException
@@ -190,24 +190,24 @@ class CacheRedis extends Root implements CacheInterface
 
 
     /**
     /**
      * 增量
      * 增量
-     * @param $key
-     * @param int $value
+     * @param string $key
+     * @param string $value
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function increment($key, $value = 1)
     public function increment($key, $value = 1)
     {
     {
-        $this->init()->incrBy((string)$key, (int)$value);
+        return $this->init()->incrBy((string)$key, (int)$value);
     }
     }
 
 
     /**
     /**
      * 减量
      * 减量
-     * @param $key
+     * @param string $key
      * @param int $value
      * @param int $value
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function decrement($key, $value = 1)
     public function decrement($key, $value = 1)
     {
     {
-        $this->init()->decrBy((string)$key, (int)$value);
+        return $this->init()->decrBy((string)$key, (int)$value);
     }
     }
 
 
 
 
@@ -237,45 +237,74 @@ class CacheRedis extends Root implements CacheInterface
 
 
     /**
     /**
      * 向list左压入
      * 向list左压入
-     * @param $key
-     * @param $value
+     * @param string $key
+     * @param string $value
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function lpush($key, $value)
     public function lpush($key, $value)
     {
     {
-        $this->init()->lPush((string)$key, $value);
+        return $this->init()->lPush((string)$key, $value);
     }
     }
 
 
     /**
     /**
      * 从list左弹出
      * 从list左弹出
-     * @param $key
+     * @param string $key
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function lpop($key)
     public function lpop($key)
     {
     {
-        $this->init()->lPop((string)$key);
+        return $this->init()->lPop((string)$key);
     }
     }
 
 
 
 
     /**
     /**
      * 向list右压入
      * 向list右压入
-     * @param $key
-     * @param $value
+     * @param string $key
+     * @param string $value
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function rpush($key, $value)
     public function rpush($key, $value)
     {
     {
-        $this->init()->rPush((string)$key);
+        return $this->init()->rPush((string)$key, $value);
     }
     }
 
 
     /**
     /**
      * 从list右弹出
      * 从list右弹出
-     * @param $key
+     * @param string $key
      * @throws DebugException
      * @throws DebugException
      */
      */
     public function rpop($key)
     public function rpop($key)
     {
     {
-        $this->init()->rPop((string)$key);
+        return $this->init()->rPop((string)$key);
+    }
+    
+    
+    /**
+     * 检查一个key是否存在 
+     * @param string $key
+     * @return int
+     */
+    public function exists($key)
+    {
+        return $this->init()->exists((string)$key);
+    }
+    
+    /**
+     * 设置过期时间
+     * @param string $key
+     * @param int $second
+     * @return int
+     */
+    public function expire($key, $second)
+    {
+        return $this->init()->expire((string)$key, (int)$second);
+    }
+    
+    
+    
+    public function mget()
+    {
+        return $this->init()->mget();
     }
     }
 
 
 } 
 }