public function remove ($item) {
        if ($this->name === null) {
            throw new InvalidConfigException(get_class ($this) . " requires a name!");
        }
        if (!$this->getConnection ()->getClient ()->lrem ($this->name , $item , 1)) {
            return false;
        }
        $this->_data = null;
        $this->_count = null;
        return true;
    }