Hello, I am working on a large application which has around 50 entities and many relational tables. We wish to use OpenJPA 2.1 as a Persistence provider.
I would like to know what criteria's should be considered while deciding the number of persistence units to be defined in an application. Following are my questions about persistence units 1) What are points to be considered to decide how many persistence units should be created in an application? 2) Is it recommended to have one persistence unit per logical module (Business module) in an application? While exploring I found that multiple persistence units are created mostly if different entities are packaged in different WAR/JAR/EAR files. Is this the only criteria to have multiple units? Regards, Krishnaprasad (Kp)
