public function read()
    {
        $responses = array();

        if (!$this->_isWritten) {
            throw new Rediska_Command_Exception('You need write before');
        }

        foreach ($this->_execs as $exec) {
            $responses[] = $exec->read();
        }

        if (isset($responses[0]) && $responses[0] === self::QUEUED) {
            $this->_isQueued = true;

            return true;
        } else {
            $this->_isWritten = false;
            return $this->parseResponses($responses);
        }
    }