public static IVehicle GetStartedVehicle <TVehicle>()
where TVehicle : class, IVehicle, new()
{
IVehicleFactory factory;
switch (new TVehicle())
{
case Car c:
factory = new CarFactory();
break;
case Truck t:
factory = new TruckFactory();
break;
default:
throw new NotImplementedException();
}
var result = factory.CreateVehicle();
result.Start();
//Return IVehicle and NOT TVehicle
//TVehicle would be the concrete type, we want the abstract type (IVehicle).
return(result);
}
