For table per class, if I use AUTO for id generation,
@Id(generate = GeneratorType.AUTO)
I got the following deployment exception:
org.hibernate.MappingException: Cannot use identity column key generation with <union-subclass> mapping for: example.Cat.
If I change it to Table:
@Id(generate = GeneratorType.Table)
It works fine.
All DBs support AUTO. For Table Per class, which one should I use? There are some others: Identity, sequence, none.
I tried to look for docs, none can be found on internet. The Javadoc
is really not very nice, no docs, just names. :-)
I already answered that, please do not crosspost.