Redelivery of message ,If there is an exception in onMessage() method

Question

          Hi ,
          Is it possible to send acknowledge from the onMessage() method of any MDB to the
          JMS server (Queue). And how to make JMS server redeliver the message ? What properties
          are to be set for this in Weblogic server ,JMS server . And do we need to do modify
          onMessage() method . If anybody has the code snippet and properties setting ,pleas
          let me know .
          TIA
          Prabir
          [redelivery.txt]
          

Answer 1

If MDB is transactional, you can call setRollbackOnly() on it (not sure of exact syntax),
          this is
          standard J2EE.
          If it is not transactional you can throw a RuntimeException (such as
          ArrayIndexOutOfBounds, etc)
          this will force a redelivery. (J2EE provides no standard here, but BEA does the sane
          thing here.)
          Note that 6.1 and above provides optional redelivery delays and redelivery limits.
          Tom
          Prabir wrote:
          > Hi ,
          > Is it possible to send acknowledge from the onMessage() method of any MDB to the
          > JMS server (Queue). And how to make JMS server redeliver the message ? What properties
          > are to be set for this in Weblogic server ,JMS server . And do we need to do modify
          > onMessage() method . If anybody has the code snippet and properties setting ,pleas
          > let me know .
          > TIA
          > Prabir
          >
          > ------------------------------------------------------------------------
          > Name: redelivery.txt
          > redelivery.txt Type: Plain Text (text/plain)
          > Encoding: base64