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15. Re: What if I want programmatic control of conversations?
Is it because the flush mode is defaulting to auto?
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16. Re: What if I want programmatic control of conversations?
Hi Keith,
Nah, Francisco pointed out the other day that even with MANUAL, the flush will occur when he calls persist() -- it's necessary in order to get the generated identifier.
The problem is that each method call is a transaction under CMT, so commit is occuring after the persist is flushed. If he uses BMT and injects a UserTransaction, he can get around this by manually doing ut.begin() and ut.commit() calls.
Daniel.
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17. Re: What if I want programmatic control of conversations?
Nah, Francisco pointed out the other day that even with MANUAL, the flush will occur when he calls persist() -- it's necessary in order to get the generated identifier.So? Pick a different non-stupid identity generator, like a sequence. Then persist() will not execute an INSERT but a SELECT to just get the new identifier. Btw, this is not related to flushing of the persistence context at all, it's called pre- vs. post-insert identifier generators.
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18. Re: What if I want programmatic control of conversations?
Click HELP for text formatting instructions. Then edit this text and check the preview.
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19. Re: What if I want programmatic control of conversations?
Yes! It works! @TransactionManagement(TransactionManagementType.BEAN) is the solution!!!!
Thanks!!!! -
20. Re: What if I want programmatic control of conversations?
Yes, that is true... but only for databases that support non-stupid identity generation (like Oracle or PostgreSQL) but not for those with autonumerics (like SQLServer) and I wanted to find a way that worked for any database.
Regards, -
21. Re: What if I want programmatic control of conversations?
Hibernates SequenceStyleGenerator works on any database and emulates sequences on trash DBMS that don't support them directly (HSQL, MySQL, etc.). This wiki software is using it.