Hi Steven, I found: "In WS-Notification, a message type is represented by an XML Schema global element definition." I did not find such an explicit statement for the othe WS definitions, but I think the same holds there. I am not sure if that would exclude large binary messages, but it certainly would make that more difficult. Yes, you can encode them, and include even larger ascii messages then, but that would be inefficient. So I think the mechanisms used in WS-Notification and WS-ReliableMessaging are VERY compatible to the SAGA message API, but the target use cases differ, and it is possible to implement the SAGA message API on top of the WS-standards, but that may be not optimal in terms of performance. OTOH, for use cases with less strict requirements (smaller message footprint, XML messages, no latency limits), the API and the WS-specs seem definitely compatible. Cheers, Andre. Quoting [Andre Merzky] (Feb 20 2007):
From: Andre Merzky <andre@merzky.net> To: Steven Newhouse <s.newhouse@omii.ac.uk> Cc: Andre Merzky <andre@merzky.net>, SAGA RG <saga-rg@ogf.org> Subject: Re: [SAGA-RG] SAGA Message API Extension
Hi Steven,
Quoting [Steven Newhouse] (Jan 19 2007):
Andre,
Where does this messaging API sit with things such as WS-Notification or WS-Eventing and WS-Relaibility or WS-ReliabaleMessaging. Can these underpin the API?
In terms of notification and event management I'd say: yes, that is compatible to WS-Notification, WS-Eventing and WS-Relaibility. I don't think though that all reliability and ordering modes can be supported with those (have to recheck, in respect to the latest discussion and changes).
I do not think though that the API would be implemented with these, as it focuses on large messages (think megabyte or more) of binary data. I think thats not the target usage scenario for the WS-protocols. Or am I missing something?
I must admit I don't know a thing about WS-ReliabaleMessaging, really - will check as soon as I am back online. I suspect though that the same answer holds. (I don't know much about the other three too, really, so will re-check them, too ;-)
Thanks for the hint!
Cheers, Andre. -- "So much time, so little to do..." -- Garfield