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1. Re: JBossCache transaction isolation levels
manik Apr 20, 2007 12:32 PM (in response to aricci)You should note that isolation levels aren't 100% in line with DB isolation levels. We just use the terms as analogies.
In reality, dealing with null nodes are different. For example, in your repeatable read case, try the same test with an older but value instead of a null.
It is not an excuse, it is still a limitation in our RR implementation. I've added a task to review our unit test suite around isolation levels as some scenarios are not well tested. See JBCACHE-1029 -
2. Re: JBossCache transaction isolation levels
manik Jun 12, 2007 11:44 AM (in response to aricci)I've added a more comprehensive set of unit tests around isolation levels, but cannot recreate the 2nd failure you talk about above (with READ_UNCOMMITTED). Perhaps the EM has another layer of caching?
See
http://viewvc.jboss.org/cgi-bin/viewvc.cgi/jboss/JBossCache/tests/functional/org/jboss/cache/transaction/isolationlevels/
Cheers,
Manik