[ebxmlms-develop] syncReply to return Data structure, Can I use EBXML to encapsulate a Web Service Call?

[john s. <dev...@ih...>]

I would need to return a data structure as return value from a message 
reception. The whole thing has to be done in a synchronous way because 
the client (the one who posts the message) is behind a NAT (so the IP is 
not directly accesible and the receiver cannot instantiate a connection 
with the client whenever he wants) .
I have tested the Acknowledge thing but the structure returned is as far 
as I know fixed (it is generated automatically without any kind of 
interaction with my onMessage function - in fact it looks as if the 
response with the acknowledgement is returned well before my onMessage 
returns). The ideal thing would be to be able to insert a custom made 
data structure in my onMessage that would somehow be sent in the 
response back and would be readable on the calling end.
This would be a little like using EBMS to encapsulate a web service: I 
pass a request as a XML document (ebXMLMessage) and receive a response 
as another XML document (an ebXMLMessage again) that actually can 
contain response information, and all of this encapsulated with EBXML 
and using XML functionalities like signing and validation and so on.

Is this possible with Hermes?
Can this be done with EBXML?

Thanks in advance.