Re: [hibernate-dev] Question about substituting IDs in Hibernate OGM

Hi Josiah, It's great to hear that you are working an a backend for Hibernate OGM! Regarding ids, it should work for you if they are mapped using the IDENTITY strategy: @Id @GeneratedValue(strategy=GenerationType.IDENTITY) Long id; This causes the Hibernate ORM engine to read back the id value generated by the datastore upon insertion. To make it work, your GridDialect for OGM needs to implement the IdentityColumnAwareGridDialect facet [1]. You can check out the MongoDB dialect for an example. If this works and this kind of id generation is the only one which is useful for Datomic (i.e. table/sequence strategies don't make any sense), you may validate mapped entities by means of a SchemaDefiner [2] (an experimental contract of OGM). An example is CouchDBSchemaDefiner. Let us know how it goes or in case you run into any other issues. --Gunnar [1] https://github.com/hibernate/hibernate-ogm/blob/master/core/src/main/java... [2] https://github.com/hibernate/hibernate-ogm/blob/master/couchdb/src/main/j... 2015-02-11 2:40 GMT+01:00 Haswell, Josiah D <Josiah.Haswell(a)ca.com&gt;: