public static RentalDAO getInstance()
{
if (dbInstance == null)
{
dbInstance = new RentalDAO();
}
return(dbInstance);
}
static void Main(string[] args)
{
RentalDAO RentalDAO = RentalDAO.Instance;
RentalDAO.OpenConnection();
Customer c = RentalDAO.RetrieveCustomer("I8877640T");
RentalDAO.CloseConnection();
Console.WriteLine(c.Name);
Console.ReadLine();
}
public Customer RetrieveCustomer(string NRIC)
{
RentalDAO rentalDAO = RentalDAO.Instance;
try
{
rentalDAO.OpenConnection();
return(rentalDAO.RetrieveCustomer(NRIC));
}
catch (Exception)
{
throw; // preserve stack trace
}
finally
{
rentalDAO.CloseConnection();
}
}
public void CreateRentalRecord(RentalRecord record)
{
RentalDAO rentalDAO = RentalDAO.Instance;
try
{
rentalDAO.OpenConnection();
rentalDAO.InsertRentalRecord(record);
}
catch (Exception)
{
throw;
}
finally
{
rentalDAO.CloseConnection();
}
}
