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Hello,

there is an API find() on the EntityManager interface. It is used to directly load an object. The method signature includes the object id as geenric object, and the class of the object sought.

Does Versant JPA actually require the class to be supplied? I would think it can work out easily from the object ID what the type is.

Are there performance benefits in supplying the class (does it make the lookup faster in any way)?

Regards, Mark

Hi Mark,
you are right, Versant JPA does not require the class, you can use em.find(null, ...) in all cases without any risk. Supplying the class does not make the lookup faster in any way, the server-side lookup with the object ID is already as fast as it can get.
Cheers, Per