/**
* Get a specific physical object related to this info object
*
* @param integer $physicalObjectId the id of the related physical object
* @return mixed the QubitRelation object on success, null if no match found
*/
public function getPhysicalObject($physicalObjectId)
{
$criteria = new Criteria();
$criteria->add(QubitRelation::OBJECT_ID, $this->id);
$criteria->add(QubitRelation::SUBJECT_ID, $physicalObjectId);
return QubitRelation::getOne($criteria);
}
