[jboss-user] [EJB 3.0] - CMP EntityManager flush and Dirty READ/WRITE

[fbadt]

We have a Stateless Session Bean that REQUIRES a new transaction for each of its methods.  The session bean passes off work to several delegate objects that are also given a reference to the inject Entity Manager.

These delegates do an em.flush to update the database (informix 9.4 with Datadirect type 4 drivers).  This seems to result in rows showing up in the database that aren't committed and therefore would need to be read with a DirtyRead.

** 1 : how can the EM be setup to do dirty reads?
** 2 : the session bean methods are logical business methods and thus one transaction; however, it would be desireable to actually do sub transactions within them.  How can this be done?

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