/**
  * supprime une reservation
  *
  * @param lesReservs
  */
 public static void supprimeReservation(ArrayList<Reservation> lesReservs) {
   FabriqueCategorie fc = FabriqueCategorie.getInstance();
   FabriqueVol fv = FabriqueVol.getInstance();
   for (Reservation res : lesReservs) {
     Date aujourd = BDDConnection.getDateDuJour();
     Date reservVol = res.getDateVol();
     Date reservChambre = res.getDateReservation();
     Categorie cat = fc.getCategorieWithIdCategorie(res.getIdCategorie());
     int delaiCat = cat.getDelai();
     Vol vol = fv.getVolBDDWithIdVol(res.getIdVol());
     int delaiVol = vol.getDelaiAnnulation();
     int difference = reservChambre.compareTo(aujourd);
     int difference2 = reservVol.compareTo(aujourd);
     if (difference >= delaiCat && difference2 >= delaiVol) {
       BDDConnection.supprimeReservation(res.getId_reservation());
     }
   }
 }