/** * Checks whether a request line has been previously processed. * * @param float $reference * * @return boolean */ public function hasLineBeenPreviouslyProcessed($reference) { if (isset($this->_processedIds[$reference])) { return true; } return SixBySix_RealTimeDespatch_Model_Resource_Request_Line_Collection::isDuplicate($this->_getEntity(), $reference); }