Albert Strasheim wrote:
>
> Hello,
>
> If you could provide us with a basic sample of the code that exhibits the
> problems you're seeing, that would be very helpful.
>
>>
>> Hi,
>> I'm using CMS 2.1 with ActiveMQ 4.1 in transactional mode, and using
>> callbacks (onMessage) to alert me to a message arriving. However I have 2
>> problems:
>>
>> a) If I call Session::commit() in onMessage() (which none of the examples
>> do) then I get a core dump.
>
> Basically I have the example code for the consumer modified so that:
>
> session = connection->createSession( Session::SESSION_TRANSACTED );
>
> and:
>
> void MQConsumer::onMessage(const Message* message)
> {
> static int count = 0;
>
> count++;
> const TextMessage* textMessage = dynamic_cast< const TextMessage* >(
> message );
>
> if( textMessage != 0 )
> {
> const std::string text = textMessage->getText();
> session->commit();
> }
> else
> {
> throw std::runtime_error("Received something other than a text
> message");
> }
> }
>
>> b) Having worked around (a), calling Session::rollback() appears to have
>> no effect - I have to close and re-open the session to get the desired
>> effect
>> of the message being put back into the MQ to be retrieved again.
>
>
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