NHibernate: Discriminators without inheritance

I have the following model:

public class Some开发者_Go百科Object1 {
  public virtual Guid Id {get; set; }
  public string Property1 {get; set; }
}
public class SomeObject2 {
  public virtual Guid Id {get; set; }
  public string Property2 {get; set;}
}

and the table

SOME_OBJECTS 
  PK_SOME_OBJECTS Guid
  WHICH_OBJECT Integer
  PROPERTY1 varchar2
  PROPERTY2 varchar2

when the WHICH_OBJECT column = 1 the row contains information for SomeObject1, when the WHICH_OBJECT column = 2 the row contains information for SomeObject2.

How would I go about doing these mappings? I've found the discriminator feature but it seems to only apply when you have subclasses in an inheritance hierarchy.

---

I'm pretty sure it's not possible to map two unrelated entities to the same table; however, you may be able to map them to two different views that reference the same table.