public bool Update(Tickets ticket)
{
//Tickets ticDB = TicketsDao.GetSingleTicket(ticket.TicketType, ticket.Beginning, ticket.Destination);
Type t = SimpleTicketFactory.CreateTicketType(ticket.TicketType);
Tickets ticDB = (Tickets)typeof(TicketsDao).GetMethod("GetSingleTicketGeneric").MakeGenericMethod(t)
.Invoke(null, new object[] { ticket.TicketType, ticket.Beginning, ticket.Destination });
ticket.Remainder = ticDB.Remainder + ticket.Remainder;
return(TicketsDao.Update(ticket) > 0);
}
public bool Add(Tickets ticket)
{
if (CheckExist(ticket.Beginning, ticket.Destination))
{
return(Update(ticket));
}
else
{
return(TicketsDao.Add(ticket) > 0);
}
}
public List <string> BuyTicket(Tickets ticket, int count)
{
Type t = SimpleTicketFactory.CreateTicketType(ticket.TicketType);
//反射调用泛型方法，由于具体泛型只能在运行时确定
object res = typeof(TicketsDao).GetMethod("GetSingleTicketByIDGeneric").MakeGenericMethod(t).Invoke(null, new object[] { ticket.ID });
Tickets ticDb = (Tickets)res;
if (ticDb.Remainder < count)
{
return(null);
}
ticket.Remainder = ticDb.Remainder - count;
TicketsDao.Update(ticket);
NotifyObserver(ticket, count);
return(ticDb.GetSeats(count));
}
/// <summary>
/// 反射调用
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ticketType"></param>
/// <returns></returns>
public List <T> GetTicketsGeneric <T>(string ticketType) where T : Tickets, new()
{
return(TicketsDao.GetTickets <T>(ticketType));
}
public bool CheckExist(string begin, string destination)
{
return(TicketsDao.CheckExist(begin, destination) > 0);
}