Hibernate version: NHibernate 1.2.0 beta

I want to use a custom type for some of the id-fields of my entities.
for example, i'd like to make a CustomerId-type, so that there won't be confusion about its type... is it long int or whatever?

but i'm not sure how to do the mapping.

I guess that type would be something like:


Only nhibernate should know about Value's type, and should map it to a single column in the database (in this case it would be the primary key column, autonum of int), my client-code would just use a CustomerId-instance.

I think it must be possible by creating a CustomerIdUserType that implements IUserType, but i haven't been successfull in implementing it yet.

Or should i derive my type from ValueType?


Anyone that has done something similar before and could post an example of the type and the mapping? or is this just complete non-sense and a very stupid idea for this or that good reason?


Thanks in advance,
greetz sotto