[jboss-user] [EJB 3.0] - Re: Transaction annotation - cannot get desired behavior

[amitka]

This will only work for EntityExistsException due to primary key constraint. The situation I encountered is with a unique constraint on other columns which are not primary keys.

I used the setter methods to set some field values, and then handled both InvalidStateException to retrieve all of the InvalidValue-s, and EntityExistsException to know if a unique constraint has been violated. The problem is that in the catch block of the EntityExistsException, I couldn't query and extract which field's uniqueness the update tried to violate. The only solution I did find was to receive another instance of the (same) bean (from itself), and invoke a REQUIRES_NEW method on that other instance which does the query.

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