Persistence Manager Improvements
--------------------------------

         Key: JBMQ-11
         URL: http://jira.jboss.com/jira/browse/JBMQ-11
     Project: JBoss MQ
        Type: Task
  Components: Persistence  
    Reporter: Adrian Brock


There are a number of improvements that can be made to the persistence manager.
This should really be done by writing a new version that can then be optionally 
used while
it is experimental.

1) Make use of the datasource mappings - similar what has been done for the EJB 
timer

2) The use of the JTA transaction is unnecessary since we are the only one in 
the transaction branch. The tranaction still needs suspending so we are 
isolated from any wrapping transacton.

3) Make use of build writes to the database
This can be used for transactional sessions where multiple messages are 
processed
But it could also be used where people want to relax the absolute requirement 
that
messages are persisted in return for some performance improvement.

4) A general review/rewrite of where the persistence manager is invoked from the
server with an aim to improve performance.

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