public function getItem( $id, array $ref = array() )
	{
		$criteria = $this->createSearch();
		$criteria->setConditions( $criteria->compare( '==', 'job.id', $id ) );
		$items = $this->searchItems( $criteria, $ref );

		if( ( $item = reset( $items ) ) === false ) {
			throw new MAdmin_Job_Exception( sprintf( 'Job with ID "%1$s" not found', $id ) );
		}

		return $item;
	}