2014-12-01 18:25 GMT+01:00 Steve Ebersole <steve(a)hibernate.org&gt;: > Maybe. I'll have to look a little closer. Is this something you are > looking at for use with ORM 5.0? > > On Fri, Nov 28, 2014 at 5:08 AM, Gunnar Morling <gunnar(a)hibernate.org&gt; > wrote: > >> Hi Steve, all, >> >> For OGM it would be beneficial if there was an extension point in ORM >> which >> allows us to customize how GenerationType.AUTO is mapped. AFAICS, that's >> currently semi-hard coded in ORM. Depending on whether >> "new_generator_mappings" is set, either SEQUENCE (true) or "native" >> (false) >> will be used. >> >> Now for the MongoDB grid dialect we'd ideally do the following: If the id >> of an entity is declared as >> >> org.bson.typesObjectId >> >> or >> >> @Type(type = "objectid") String >> >> then map AUTO to IDENTITY (ObjectId is a MongoDB-specific type which >> resembles an identity column). Otherwise map it to TABLE (or SEQUENCE, >> which transparently falls back to TABLE). >> >> I.e. this decision would not be a global one, but depend on the specific >> id >> type. >> >> Would this be feasible to do? or is it mandated by JPA somehow that AUTO >> is >> always mapped in the same way? I cannot judge on the amount of changes >> required in ORM as atm. AUTO always is mapped in the same way, it doesn't >> depend on the specific entity and its id type. >> >> Any thoughts? >> >> Thanks, >> >> --Gunnar >> _______________________________________________ >> hibernate-dev mailing list >> hibernate-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/hibernate-dev >> > >