0 Replies Latest reply: Jan 26, 2012 8:32 AM by 913420 RSS

    Message handling in a process (JMS)

    913420
      Hi all

      First of all, I'm a JMS noob. I used to use EAI-tools to accomplish integration assignments but now a customer wants to develop message flow, mapping, routing, etc with code:(
      Because of that I got couple of questions.

      A queue will contain messages from a party. Those messages are of one format but they will be processed differently depending on the values in some elements. One message may be routed directly to a system but the other may be used as a part of a process.
      That process is following:
      1. Pick the message from the queue
      2. Use some details from the message to create a SOAP request
      3. receive the SOAP response
      4. create another SOAP request to update a salary system
      5. When all the above steps are finished then I use the original message from 1. to update a third system

      My question is if I pick the message from the queue (1.) and the process fails before its finalized (5.) then the original message (1.) is lost. Should I use try/catch in my process code to resubmit the message to the queue in case of failure? Or should I create a "Runnning-state" queue that contains messages that are in this process state.
      What is the normal thinking when working processes and JMS?

      Kind regards
      L.O.