protected function _saveOptions()
    {
        if ($this->_search->hasOption(Search::OPTION_SCROLL)) {
            $this->_options[0] = $this->_search->getOption(Search::OPTION_SCROLL);
        }

        if ($this->_search->hasOption(Search::OPTION_SCROLL_ID)) {
            $this->_options[1] = $this->_search->getOption(Search::OPTION_SCROLL_ID);
        }
    }