/**
  * Sets query from and size
  *
  * @param Pocketphp_Elasticsearch_Model_Query_Abstract $dsl
  */
 protected function _setFromAndSize(Pocketphp_Elasticsearch_Model_Query_Abstract $dsl)
 {
     if ($this->_pageSize !== false) {
         $page = $this->_curPage > 0 ? (int) $this->_curPage : 1;
         $rowCount = $this->_pageSize > 0 ? (int) $this->_pageSize : 1;
         $offset = $rowCount * ($page - 1);
         $dsl->setFrom($offset);
         $dsl->setSize($rowCount);
     }
 }