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Subject: Re: [sca-bindings] [Issue 2] Proposal version 3: How to implementSCA callbacks using SOAP

I forgot to mention that when this proposal is combined with Mike's idea 
of defining a WSDL extension to indicate the callback interface (similar 
to the @Callback Java annotation), what we have is a WS-Callback 
specification (I know, yet another WS-Splat spec). Such a spec could be 
a stand-alone spec independent of SCA and would result in non-SCA 
systems being able to talk to SCA services that offer bi-directional 


Anish Karmarkar wrote:
> Attached.
> I have converted the HTML version to Word, so that it is easy for folks 
> to comment and make inline changes.
> The big change between v2 and v3 is the addition of faults. My initial 
> inclination was to define our own faults, but it turns out WS-Addressing 
> has some pre-defined faults which fit our purpose. So, I have reused 
> those faults.
> One thing I'm not clear on is whether the TC wishes to define this 
> SOAP-specific callback mechanism as *one* of the ways callbacks can be 
> implemented when using SOAP or *the* way callbacks are implemented when 
> using SOAP. My inclination is to say *the* way, otherwise we have to 
> invent ways (metadata such as policySets, ws-policy assertion, WSDL 
> extension, Java annotation) to convey when it is required.
> Comments?
> -Anish
> -- 
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