First, I have tried to search... nothing. Second, I know that java.lang.String PKs, managed by the application are stupid. But this is legacy code that I have to deal with. So, please don't flame me.

I have no problem reading data from this table, or updating any other table with a more "normal" java.lang.Long PK. But I am trying to create a new row and it's giving me a headache. Here are some questions:

1) Since I am not auto-generating keys as normal, is <generator class="assigned" /> the right clause in the HBM file?

2) In the method call, should I be doing session.save(obj) or session.saveOrUpdate(obj)?

3) It is supposed to be in a transaction, right?

Thx.

P.S.: I did not list the exact error message because I get different ones depending on what I try... so I thought I'd get the basics straight first.

Yes.


This might help you. Probably there is even more information in the FAQ or at least in the documentation.
http://www.hibernate.org/116.html#A19


Well, transactions are nice. If you don't use them, you won't be able to profit from their advantages. :)

Best regards
Sven