/**
* Returns a peer instance associated with this om.
*
* Since Peer classes are not to have any instance attributes, this method returns the
* same instance for all member of this class. The method could therefore
* be static, but this would prevent one from overriding the behavior.
*
* @return NotificacionPeer
*/
public function getPeer()
{
if (self::$peer === null) {
self::$peer = new NotificacionPeer();
}
return self::$peer;
}