/**
  * Get the associated Llistes object
  *
  * @param      PropelPDO Optional Connection object.
  * @return     Llistes The associated Llistes object.
  * @throws     PropelException
  */
 public function getLlistes(PropelPDO $con = null)
 {
     if ($this->aLlistes === null && $this->llistes_idllistes !== null) {
         $this->aLlistes = LlistesPeer::retrieveByPk($this->llistes_idllistes);
         /* The following can be used additionally to
         		   guarantee the related object contains a reference
         		   to this object.  This level of coupling may, however, be
         		   undesirable since it could result in an only partially populated collection
         		   in the referenced object.
         		   $this->aLlistes->addUsuarisllistess($this);
         		 */
     }
     return $this->aLlistes;
 }