Hello,
I am struggling with some problems mapping vertical inheritance clases:
I have 5 classes in my business model:
Session
ClientSession inherits from Session
WebSession inherits from Session
User
Device
Using vertical inheritance I have all 5 tables and I have no problem
mapping ClientSession and WebSession attributes but ClientSession has a
many to one relationship with Device and the same happens with
WebSession and User.
Using flattened relationship I can map that relation it is read only,
this should be no problem as long as I can create the relationship from
the other side, the problem is that in this case there is no reverse
relationship.
If I try to creat a entity relationship on User I must set the target to
Session entity and not WebSession, if I set it to WebSession tells me
there is no mapping and if I choose the correct mapping to WebSession
then as there is no entity linked to that table it complains about no
target entity.
I have modelled it as the documentation says setting table/view of
ClientSession and WebSession to Session table.
As a result it seems the only way to set the relationships is using
addSession over User/Device to add Session object but this for sure is
not an easy setup, not documented and I don't know how it will react if
I add the wrong session type.
Indeed I am unsure about all this model working as I am under heavy
refactoring in my application and I wont be able to test the setup in
the short term.
I am unsure if this is a rant message or a help me I am going crazy one,
but if some one with some experience with this kind of mapping can share
some light it will be great.
BTW I tried to do everything with 3.0.2 modeller and finally updated to
3.1.B1 modeller, Will the model created with 3.1.B1 modeller work with
3.0.2 runtime? (I want to update the runtime but just in case I can not
do it).
Ramiro Aparcio
