public function has($userId, $callId)
    {
        $key = $this->getCacheKey($userId, $callId);
        if (!isset($this->cache[$key])) {
            return $this->getStorage()->has($userId, $callId);
        }
        return $this->exists($key);
    }
public function has($userId, $callId)
    {
        $key = $this->getCacheKey($userId, $callId);
        if (!isset($this->cache[$key])) {
            return $this->getStorage()->has($userId, $callId);
        }
        return $this->exists($key);
    }
public function has ( $ userId , $ callId ) { $ key = $ this -> getCacheKey ( $ userId , $ callId ) ; if ( ! isset ( $ this -> cache [ $ key ] ) ) { return $ this -> getStorage ( ) -> has ( $ userId , $ callId ) ; } return $ this -> exists ( $ key ) ; }
Whenever or not a dataset exists.

@param string $userId
@param string $callId
@return boolean
Whenever or not a dataset exists .