Dear visitor - I'm new to NHibernate and came across the following problem:

I've one base class for all my entities. In my entities I use list of this base class for references. For example:

class A : BaseClass
{
IList<BaseClass> myList;
}

class B : BaseClass
{
}

class C : BaseClass
{
}

At runtime it's decided which conrete class - B or C - is filled in myList.

To use NHibernate I wrote a map class for each entity A,B,C - but not for the base class (Is there a way to do that - I've some redundant code for the attributes of the base class??)

class AMap : ClassMap<A>
{
......
HasMany(x => x.myList).Inverse().Cascade.All().KeyColumn("xyz");
.....
}

I end up with the error "Association references unmapped class: BaseClass" which is truly right - I don't have a map class for my BaseClass.

I tried it with SubClassMap but that did not solve the problem.
How can I solve the problem?? Any help is urgently needed ...