[jboss-user] [JBoss Messaging] - best practice for JTA based consuming and delegating

mclu do-not-reply at jboss.com
Wed Jul 2 04:40:16 EDT 2008

Hi all!
I am a little confused.

I have to receive messages from a local queue and have to delegate this to some business logic (Session Beans) (which persists data in a DB);

I have to ensure that the message order is preserved, also in case of rollbacks or exceptions. I also have to ensure that the consuming and the business logic is handles in one transaction.

My first idea was to receive messages via a MDB but in case of setRollbackOnly() the MDB container does not retry the same message so order is scrambled.

Then I thought to create a Service which starts a plain receiver which uses jmsXA Connectionfactory to create a transacted receive. Message by Message. 

My question. Does this also starts a JTA transaction where my called Sessionbeans later enlist to? Or must I start a transaction by hand?

I am searching for the best practice to receive messages and process them by my ejb3 session and entitybeans in one transaction.  

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