Hi.

I am creating a database application using Hibernate and Derby. A number of the tables use the following to generate the id:


This causes the TableHiLoGenerator to be used to create the ids.

I was wondering how this class ensures that unique ids are generated in the case where a large number of records are inserted and deleted, so that the value in HIBERNATE_UNIQUE_KEY wraps around?

Looking at the code, I can't see any safeguard to prevent this.

Thanks,

Carl