Throw an EJBException from EJBStore. Catch the exception in the SB and call rollback, then retry.
> -----Original Message----- > From: A mailing list for Enterprise JavaBeans development > [mailto:[EMAIL PROTECTED] Behalf Of Pablo Schor > Sent: Thursday, 15 January 2004 11:35 a.m. > To: [EMAIL PROTECTED] > Subject: BMP/T, optimistic locking and trying to revert a commit > > > I have the following situation: Jboss 3.2.1, one statless > session bean, one BMP entity beans. The session bean updates the > table through _BMT_, but the ejbStore has a "version=v" in the > where clause and if it fails (no rows updated), it has to throw > an exception to the session bean. > > > The container executes the ejbStore() method when the session > bean issues a commit, but if the version is incorrect, the BMP > throws an exception - trying to rollback since the update clause > didn't update the required row. > > > Questions: > > 1. What Exception should the BMP throw? Can a BMP throw an > application specific exception? if not, how can the BMP notify > the session bean the fact no rows were updated? > 2. In any case, can the commit be reverted? > > > Thanks for any info, > PS > > > ================================================================== > ========= > To unsubscribe, send email to [EMAIL PROTECTED] and include > in the body > of the message "signoff EJB-INTEREST". For general help, send email to > [EMAIL PROTECTED] and include in the body of the message "help". > > =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
