public function Guacamole_Connection_Parameter($connection = null, $parameterName = "Il n'y a pas de nom de paramètre de la connexion", $parameterValue = "Il n'y a pas de valeur pour le paramètre de la connexion")
 {
     if (is_null($connection)) {
         $connection = Guacamole_ConnectionDAL::findByDefault();
         $this->connection = $connection;
     } else {
         $this->connection = $connection;
     }
     $this->parameterName = $parameterName;
     $this->parameterValue = $parameterValue;
 }
 public function Guacamole_Connection_Permission($user = null, $connection = null, $permission = "Il n'y a pas de permission")
 {
     if (is_null($user)) {
         $user = Guacamole_UserDAL::findByDefault();
         $this->user = $user;
     } else {
         $this->user = $user;
     }
     if (is_null($connection)) {
         $connection = Guacamole_ConnectionDAL::findByDefault();
         $this->connection = $connection;
     } else {
         $this->connection = $connection;
     }
     $this->permission = $permission;
 }