public List<JourneyRoute> getJourneyRoutes(Journey journey) {
    JourneyRouteDao journeyRouteDao = daoSession.getJourneyRouteDao();
    List<JourneyRoute> journeyRoutes =
        journeyRouteDao
            .queryBuilder()
            .where(JourneyRouteDao.Properties.Journey_id.eq(journey.getId()))
            .list();
    Collections.sort(
        journeyRoutes,
        new Comparator<JourneyRoute>() {
          public int compare(JourneyRoute journeyRoute1, JourneyRoute journeyRoute2) {
            String routeNumber1 = journeyRoute1.getRoute().getNumber();
            String routeNumber2 = journeyRoute2.getRoute().getNumber();

            if (routeNumber1.equals(routeNumber2)) {
              routeNumber1 += journeyRoute1.getRoute().getHeadsign();
              routeNumber2 += journeyRoute2.getRoute().getHeadsign();
            } else {
              try {
                int routeNumberInt1 = Integer.parseInt(routeNumber1);
                int routeNumberInt2 = Integer.parseInt(routeNumber2);

                return new Integer(routeNumberInt1).compareTo(routeNumberInt2);
              } catch (NumberFormatException e) {
                /* ignore */
              }
            }

            return routeNumber1.compareTo(routeNumber2);
          }
        });

    return journeyRoutes;
  }
 public void clearJourneyRoutesFromDatabase(Journey journey) {
   JourneyRouteDao journeyRouteDao = daoSession.getJourneyRouteDao();
   journeyRouteDao
       .queryBuilder()
       .where(JourneyRouteDao.Properties.Journey_id.eq(journey.getId()))
       .buildDelete()
       .executeDeleteWithoutDetachingEntities();
   journey.resetJourneyRouteList();
 }