Before Session Timeout: Flush entityManager problem

[specialagent.specialagentx.web.de]

Hi all,

Im trying to persist/synchronize all user provided data before a session rans out of time within a conversation/pageflow. I need to do this to prevent loosing data and I set the flushMode to manual.

What would be the way to handle this issue?

Im using an @Observer(org.jboss.seam.preDestroyContext.SESSION)
inject the EntityManager, check if it is open() and calling flush() method.
Then I get the exception javax.persistence.TransactionRequiredException: no transaction is in progress.

Im using JTA transaction on WebLogic 10.3.3 and JBoss 4.2.3

So are you dealing with data loss on session time out?

Thank you!

[lvdberg]

Hi,

you should try to prevent thse situations, but the thing I do is creating a session bean and add the necessary logic in the destroy method. When the session times-out. The destroy method is called and you could perform some logic (although I prefer a timer ajax push in a page to prevent this, or a simple ajax update for each change).

Leo