public function setAttribute($attribute, $value)
 {
     switch ($attribute)
     {
         case $this->AuthenticationAuthority->getField('email'):
             $this->setEmail($value);
             break;
         case $this->AuthenticationAuthority->getField('lastname'):
             $this->setLastName($value);
             break;
         case $this->AuthenticationAuthority->getField('firstname'):
             $this->setFirstName($value);
             break;
         case $this->AuthenticationAuthority->getField('uid'):
             $this->setUserID($value);
             break;
         default:
             parent::setAttribute($attribute, $value);
             break;
     }
 }