Pheasant\Query\QueryIterator::_resultSet PHP Method

    private function _resultSet()
    {
        if (!isset($this->_resultSet)) {
            foreach ($this->_before as $callback) {
                $callback($this->_query);
            }
            $this->_resultSet = $this->_query->execute();
        }
        return $this->_resultSet;
    }