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 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));
}
public List <Tickets> GetTickets(string ticketType)
{
Type t = SimpleTicketFactory.CreateTicketType(ticketType);
//反射调用泛型方法，由于具体泛型只能在运行时确定
IList templist = (IList)typeof(TicketsMgr).GetMethod("GetTicketsGeneric").MakeGenericMethod(t).Invoke(this, new object[] { ticketType });
List <Tickets> res = new List <Tickets>();
//返回的是具体类，需要转换为抽象类
foreach (var item in templist)
{
res.Add((Tickets)item);
}
return(res);
}