I have a question about JDO Lifecycle Listeners and transactions. Suppose that I have set a StoreLifecycleListener for a PersistenceManager, then initiated a transaction. When I call commit(), this triggers some saves to the Datastore, and the preStore() and postStore() methods get called.
My question: if a Datastore save is triggered by a transaction commit, will postStore() be called ONLY if the transaction commits successfully? My guess is that no, it will be called regardless, before the commit does/does not go through. The reason I think this, is that if I call makePersistent() mid-transaction, I see that postStore() is called then as well. Does anyone know the definitive answer to this? (apologies if I missed it in the docs somewhere). On a related note :), is there a good way to simulate a transaction commit failure due to contention? I often want to test things like the above and do not know a good way to force a commit failure in order to find out. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
