How to keep EJBs and Database Tables in sync ?
Hello dear fellow JDeveloper 11 users,
after i created some EJB 3 entity beans and some offline database table definitions
i would like to get them linked to each other, and to keep them in sync.
where do i do that? cant find it, have i missed it?
thanks for any tips,
thomas
thomas.nagel (at) materna.de
Both questions are not JDev 11 specific and work in JDev 10.1.3.x also.
To keep entities in sync you have tell the underlying orm layer when to refresh its cache. One way for doing this is to use hints in the NamedQueries like this one
hints =
{ @QueryHint(name = TopLinkQueryHints.REFRESH, value = HintValues.TRUE)Linking EJBs could be easily done (ie automagically during EJB from Tables creation) if the underlying datamodel uses foreign keys relationships.
--olaf
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