Hi, For multi-level derived identity, please see the discussion and examples provided with [1]. OpenJPA manual describes the ground rules [2].
[1] https://issues.apache.org/jira/browse/OPENJPA-207 [2] http://openjpa.apache.org/builds/1.2.0/apache-openjpa-1.2.0/docs/manual/manual.html#ref_guide_pc_oid_entitypk -- View this message in context: http://n2.nabble.com/Enterprise-JavaBeans---HowTo%3A-construct-Composite-key-using-other-composite-key--tp788926p789546.html Sent from the OpenJPA Users mailing list archive at Nabble.com.
