Fluent NHibernate Mapping - State Pattern

Question

Hi,

I'm not too hot on NHibernate / FNH Mapping but I am looking at implementing the state pattern and like the idea of Derick Bailey's article here:

I beleive this was a while ago so the mapping code is out of date, can someone give me a hand to update it for FNH 1.1?

public class OrderStatusMap: ClassMap<OrderStatus>
{
   public OrderStatusMap()
   {
       CreateMap();
   }

   public void CreateMap()
   {
       DefaultAccess.AsProperty();
       WithTable("OrderStates");
       Id(s => s.Id).GeneratedBy.Assigned();

       DiscriminateSubClassesOnColumn<string>("Name") 
           .SubClass<InProcessStatus>()
               .IsIdentifiedBy(OrderStatus.InProcess.Name)
               .MapSubClassColumns(x => { }) 

           .SubClass<TotaledStatus>()
               .IsIdentifiedBy(OrderStatus.Totaled.Name)
               .MapSubClassColumns(x => { })

           .SubClass<TenderedStatus>()
               .IsIdentifiedBy(OrderStatus.Tendered.Name)
               .MapSubClassColumns(x => { })

           .SubClass<DeliveredStatus>()
               .IsIdentifiedBy(OrderStatus.Delivered.Name)
               .MapSubClassColumns(x => { })

       Map(s => s.Name);    
   }
}

His article is here for the rest of the code: http://www.lostechies.com/blogs/derickbailey/archive/2008/11/26/mapping-a-state-pattern-with-nhibernate.aspx

Thank you very much!

Paul