xp-dev.com Git - RRRRHHHH_Code/blob - ruralHouses/src/businessLogic/BookingManager.java

   1 package businessLogic;
   2
   3 import java.util.Date;
   4 import java.util.Vector;
   5
   6 import com.db4o.ObjectContainer;
   7 import com.db4o.ObjectSet;
   8
   9 import dataAccess.DB4oManager;
  10 import domain.Booking;
  11 import domain.Offer;
  12 import domain.Owner;
  13 import domain.RuralHouse;
  14 import exceptions.OfferCanNotBeBooked;
  15
  16 public final class BookingManager {
  17
  18         private int bookingNumber = 0;
  19         dataAccess.DB4oManager dbMngr;
  20
  21         private static BookingManager theBookingManager;
  22
  23         public BookingManager() {
  24                 try {
  25                         this.dbMngr = DB4oManager.getInstance();
  26                 } catch (Exception e) {
  27                         e.printStackTrace();
  28                 }
  29         }
  30
  31         /**
  32          * This method returns the next Booking number
  33          *
  34          * @return the book number
  35          */
  36         public static int getNumber() {
  37                 ObjectContainer db = DB4oManager.getContainer();
  38                 BookingManager b = getInstance();
  39                 b.bookingNumber++;
  40                 db.store(b);
  41                 db.commit();
  42                 return b.bookingNumber;
  43         }
  44
  45         /**
  46          * This method returns the instance of the BookingManager class
  47          *
  48          * @return the booking manager
  49          */
  50         public static BookingManager getInstance() {
  51                 ObjectContainer db = DB4oManager.getContainer();
  52                 BookingManager b = new BookingManager();
  53                 ObjectSet<BookingManager> result = db.queryByExample(b);
  54                 if (!result.hasNext()) {
  55                         theBookingManager = new BookingManager();
  56                         db.store(theBookingManager);
  57                         db.commit();
  58                 } else
  59                         theBookingManager = (BookingManager) result.next();
  60                 return theBookingManager;
  61         }
  62
  63         public void removeBooking(Booking B) {
  64                 // TODO
  65
  66         }
  67
  68
  69         /**
  70          * This method creates a book with a corresponding parameters
  71          *
  72          * @param First
  73          *            day, last day, house number and telephone
  74          * @return a book
  75          */
  76         public Booking createBooking(RuralHouse ruralHouse, Date firstDate,
  77                         Date lastDate, String bookTelephoneNumber)
  78                         throws OfferCanNotBeBooked {
  79
  80                 return dbMngr.createBooking(ruralHouse, firstDate, lastDate,
  81                                 bookTelephoneNumber);
  82         }
  83
  84 }