OSB is staless and how it achieves Asychnorous call back

Hi All,
I got to know OSB is statless and BPEL is stateful and hence it supports Asynchronous Call back reliably with Correletaion ID which is also
supported in Oracle Enterprise Service bus and it is now knows as Mediator in 11g.
The question I have is
A) Since OSB is stateless which means we can't implement Asynchronous call back kind of integration pattern.
B) If my proxy service has to call WebService Asynchronopusly and don't wait for the response continue with the rest of the
execution once the response get's received from the web service it has to send the details to the source.
I am indeed aware of one particular indirect approach is this kind of stuffs could be achieved in JMS queues by means of correlation IDs by
means of using two queues one for request and another for response.
If anyone had a better suggestion/thoughts please do provide the same at the earliest.
Many Thanks,
Dini

You may also consider the approach discussed here -
http://blogs.oracle.com/knutvatsendvik/entry/oracle_service_bus_asynchronous_message_processing
http://biemond.blogspot.in/2011/02/building-asynchronous-web-service-with_27.html
Regards,
Anuj
Edited by: Anuj Dwivedi on Feb 10, 2012 6:01 PM

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