public void doReturnDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects...
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer rented this DVD?
RentalData rental_data =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental_data == null || !rental_data.getReturned().equals("null"))
setMessage("This DVD not rented by this customer!");
else {
try {
// begin transaction...
DVDStoreFactory.getInstance().begin();
rental_data.setReturned(DVDStoreFactory.getTodayDate());
getRentalManager().returnDVD(rental_data);
DVD_data.setNumCopies(DVD_data.getNumCopies() + 1);
getDVDManager().updateDVD(DVD_data);
// need to commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Returned DVD");
} catch (Exception e) {
setMessage("Couldn't return DVD: exception " + e);
try {
// need to rollback transaction
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("Couldn't rollback transaction: exception " + e);
}
}
}
} catch (Exception e) {
setMessage("couldn't check DVD record: " + e);
}
}
public void doRentDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer asked for this DVD??
RentalData rental =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental != null) {
if (rental.getDispatched() != null && !rental.getDispatched().equals("null")) {
setMessage("Already dispatched to customer on " + rental.getDispatched());
return;
}
try {
// need to do begin transaction...
DVDStoreFactory.getInstance().begin();
// indicate sent to customer & by whom
rental.setStaffID(staff_data.getID());
rental.setDispatched(DVDStoreFactory.getTodayDate());
getRentalManager().dispatchDVD(rental);
// indicate number of copies available now reduced by 1 - should change to do on REQUEST
// !!!
DVD_data.setNumCopies(DVD_data.getNumCopies() - 1);
getDVDManager().updateDVD(DVD_data);
// need to do commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Rented DVD");
} catch (Exception e) {
setMessage("Couldn't rent DVD: exception: " + e);
try {
// need to do rollback of transaction...
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("*** Couldn't roll back transaction: " + e);
}
}
} else setMessage("This DVD not requested by customer!");
} catch (Exception e) {
setMessage("Couldn't check DVD: exception:" + e);
}
}
