Re: [hibernate-dev] [OGM] Behavior of GenerationType.IDENTITY with OGM

The problem is that in JPA, IDENTITY returns a long, not a UUID. On Mon 2014-01-20 12:23, Gunnar Morling wrote: > Hi, > > While reviewing the PR for batch operations in OGM [1], I took some time to > better understand OGM's approaches for id generation. > > Now I'm wondering about how GenerationType.IDENTITY is implemented. The > corresponding generator (OgmIdentityGenerator) just delegates to a > table-based strategy, so an id is always pre-allocated and then passed into > the dialect when creating a tuple. > > I think it would be nice to have proper support for server-generated ids, > in particular since some stores return the inserted id directly from the > insert operation, i.e. without requiring another read. > > For the time being, as the current implementation doesn't really adhere to > the semantics of GenerationType.IDENTITY, should we raise an error when > using it instead of silently using another strategy? > > Thoughts? > > --Gunnar > > [1] https://hibernate.atlassian.net/browse/OGM-175 > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev