Ali,
1) The scenario you describe seems correct to me. Event Notification is
a rather common pattern, and some specifications that can be of help are
WS-Eventing and WS-BaseNotification. Anyway, your scenario is simple
enough for, as Anne stated, WS-Addressing being enough to implement it.
2) The solution you are considering is basically correct, but putting
and EndPointReference to the service will be better than a simple
service name. Shortly, it will safe you some programming at the client
side if you get a ready-to-use EPR ;-)
Some thoughts about your description:
- You should include an EPR in OpenAccountMsg, pointing to the service
that will receive the notification in the client side.
- Why do not you include the results in the event notification itself?
Regards,
Rodrigo Ruiz
Anne Thomas Manes wrote:
WS-Addressing.
On 4/27/06, *Ali Sadik Kumlali* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Hi all,
I want to send a notification message to my clients when their requests
are processed and the results are ready. Then I expect them to call a
service to acquire the results. Here is the sample scenario:
server.wsdl
------------
- OpenAccount
- input: OpenAccountMsg
- GetOpenAccountResult
- input: GetOpenAccountResultMsg
- output: GetOpenAccountResultResponseMsg
client.wsdl
------------
- ResultIsReady (input only)
- input: ResultIsReadyMsg
OpenAccountMsg (MessageId: A)
Client -----------------------------------------------------> Server
ResultIsReadyMsg (MessageId: B, RelatesTo: A)
Client <----------------------------------------------------- Server
GetOpenAccountResultMsg (MessageId: C, RelatesTo: A)
Client -----------------------------------------------------> Server
<-----------------------------------------------------
GetOpenAccountResultResponseMsg (MessageId: D, RelatesTo: A)
Here are the questions:
1) Do you see any flaw in this scenario? Or is there a common and
standards based way to accomplish this kind of asynchronous
communication?
2) I haven't found a good way to say my clients which service do they
need to call for getting the results. I'm planning to put the name of
result service name (GetOpenAccountResultMsg) in notification message
(ResultIsReadyMsg).
Could you please enlighten me? Any help would be great!
Ali Sadik Kumlali
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