From Emmanuel (regarding references to OgmEntityPersister):

For Infinispan, it seems it's to access OgmEntityPersister.getRootEntityKeyMetadata() we could create an interface SPI hosting this.

I don't know how to access any column name from the EntityPersister but you can do {{Lockable.getVersionColumnName(). Would that be sufficient?

For the query, getting the GridType if that's what you are looking for could be a contract of the interface I mentioned above.

So yes let's keep it in impl and build the necessary contract in a dedicated interface (new issue).