[eclipselink-users] Batch Writing and unique key constraint violation

[patric@xxxxxxxxxx]

Hello,

I have a question when writing many entities to the database (using  
jdbc batch).
Because of performance reasons I am commiting in "groups" (let's say  
every 100 entities).

The table to which the entity belongs has several unique key  
constraints defined.
It may be the case that some entities of a group matches the same  
unique key and hence the commit will fail, due to unique key violation.

My question: Is there any way to retrieve the entity/ies (or the  
unique key combination) which caused the violation?

(A "commit size" of 1, a flush after each insert, or a  
select-before-insert are no options for me)

Thank you!

Best regards,
Patric