Several instances of MDB accessing a Q and one rolling back a message

I have one input queue being served by several instances of an identical
          MDB.
          When a problem occurs with an MDB processing one of the messagse read on the
          queue (for instance, it could not forward the answer, the bean is being
          brought down through an exception or otherwise), I would like to rollback
          the message it was processing since it could not complete the job.
          I would like to let the container manage the transaction and use
          setRollbackOnly when the instance of MDB fails or has to abrupty end. What
          would happen to messages that are currently being processed by other MDBs
          (and thus have not been committed) and followed the message that caused the
          rollback in the input queue? In other words, uncomitted messages submitted
          to other MDB instances after the failed MDB started the transaction that
          ultimately failed. Will they also be rollbacked?

          Wim van der Kerkhoven wrote:
          > I have one input queue being served by several instances of an identical
          > MDB.
          >
          > When a problem occurs with an MDB processing one of the messagse read on the
          > queue (for instance, it could not forward the answer, the bean is being
          > brought down through an exception or otherwise), I would like to rollback
          > the message it was processing since it could not complete the job.
          >
          > I would like to let the container manage the transaction and use
          > setRollbackOnly when the instance of MDB fails or has to abrupty end. What
          > would happen to messages that are currently being processed by other MDBs
          > (and thus have not been committed) and followed the message that caused the
          > rollback in the input queue? In other words, uncomitted messages submitted
          > to other MDB instances after the failed MDB started the transaction that
          > ultimately failed. Will they also be rollbacked?
          No. Only the message participating in the rolled back transaction
          will be rolled back. Messages in other transactions will not be
          affected.
          >
          >
          >
          >

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