Hello,

How do you do Clustering and ID TableGenerator
(e.g.OPENJPA_SEQUENCE_TABLE) ?

Will this somehow magically work (how?), or will different nodes "step
on each other's feet" because they'll use the same PK? Can they each use
different "slices" ?

If impossible, do you HAVE to use Identify columns or Sequence
generators in the DB? I thought that was not such a good idea (if you
have a choice), performance wise, because it requires an extra
round-trip to the DB to get the PK e.g. to set it as FK. Also
https://issues.apache.org/jira/browse/OPENJPA-464 states that Statement
Batching won't work with GeneratedType=IDENTITY - so this option doesn't
seem terribly tempting in order to get ID and clustering happily married
together.

How do people out there do this with OpenJPA?

Thank you,
Michael

_____________________________
Michael Vorburger, Odyssey Financial Technologies


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