How to maintain Strict Ordering of messages using SOA Suite where AQ is used for persistence.

The requirement is this -
Source DB -> Poller DB Adapter-> BPEL -> AQ -> DEQUEUE -> Target System
Messages are DEQUEUED from an AQ (second part above - AQ -> DEQUEUE -> Target System) . The messages in this AQ are to be sent strictly in order to the Target system. In case there is an error during this processing of messages from the AQ to the Target system. The process should HALT and the message must be rolledback. Put in other words - the interface should stop . There must be no message loss in any circumstances. There should not be any further dequeue of messages or there should be no more instances created due to this. Only when someone has seen this error / error message  and acted on this error message/error shall this processing get started. Any idea how do we achieve this using SOA Suite 11g? Hope I have been able to explain well about the problem.
Environment -  has two soa managed servers on weblogic (clustered).
Please suggest ways to achieve this scenario. This is very crucial and needs implementation within 2 days of time.

Hi,
You can use Mediator Resequencing if looking for a standard solution. Else introduce Timestamp while pushing messages in AQ and sort them by Timestamp during processing - not a neat solution though.
Regards,
Neeraj Sehgal

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