One more question though - do I understand right from the javadoc that putForExternalRead is non-transactional? Meaning that if a change something in a TX in the persistent store, and then call putForExternalRead with the changes, other transactions will see the change, making it a dirty read? Although I'll probably won't be able to use it anyway, as I'm not able to deploy cache > 2 on AS 4.2 ;) (Hibernate stops finding the datasource in jndi ...) Adam View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4257266#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...