/**
	 * Retrieve object using using composite pkey values.
	 * @param      int $eleve_id
	 * @param      string $date_demi_jounee
	 * @param      PropelPDO $con
	 * @return     AbsenceAgregationDecompte
	 */
	public static function retrieveByPK($eleve_id, $date_demi_jounee, PropelPDO $con = null) {
		$_instancePoolKey = serialize(array((string) $eleve_id, (string) $date_demi_jounee));
 		if (null !== ($obj = AbsenceAgregationDecomptePeer::getInstanceFromPool($_instancePoolKey))) {
 			return $obj;
		}

		if ($con === null) {
			$con = Propel::getConnection(AbsenceAgregationDecomptePeer::DATABASE_NAME, Propel::CONNECTION_READ);
		}
		$criteria = new Criteria(AbsenceAgregationDecomptePeer::DATABASE_NAME);
		$criteria->add(AbsenceAgregationDecomptePeer::ELEVE_ID, $eleve_id);
		$criteria->add(AbsenceAgregationDecomptePeer::DATE_DEMI_JOUNEE, $date_demi_jounee);
		$v = AbsenceAgregationDecomptePeer::doSelect($criteria, $con);

		return !empty($v) ? $v[0] : null;
	}