Re: [sca-bindings] Notions around issue 54 - close to a proposal

[David Booz <booz@us.ibm.com>]

+1 to Mike.

And one further comment (on the reference side), how do other people feel about an optimization allowing wsdlElement to point to a WSDL service that has only one port in it?

Dave Booz
STSM, BPM and SCA Architecture
Co-Chair OASIS SCA-Policy TC and SCA-J TC
"Distributed objects first, then world hunger"
Poughkeepsie, NY (845)-435-6093 or 8-295-6093
e-mail:booz@us.ibm.com

Mike Edwards ---02/11/2009 05:50:09 AM---Eric, Comments inline as <mje></mje>

From:	Mike Edwards <mike_edwards@uk.ibm.com>
To:	OASIS Bindings <sca-bindings@lists.oasis-open.org>
Date:	02/11/2009 05:50 AM
Subject:	Re: [sca-bindings] Notions around issue 54 - close to a proposal

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Eric, 

Comments inline as <mje></mje> 

Yours,  Mike.

Strategist - Emerging Technologies, SCA & SDO.
Co Chair OASIS SCA Assembly TC.
IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
Phone & FAX: +44-1962-818014    Mobile: +44-7802-467431  
Email:  mike_edwards@uk.ibm.com

From:	Eric Johnson <eric@tibco.com>
To:	OASIS Bindings <sca-bindings@lists.oasis-open.org>
Date:	11/02/2009 02:57
Subject:	[sca-bindings] Notions around issue 54 - close to a proposal

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Staring at issue 54 for several hours, I came up with the following:

The URI(s) for a binding.ws element contained in an service element
SHOULD be determined by the first of these rules that is satisfied:
1. If the @wsdlElement attribute is present
   1. and refers to a WSDL port element, use the address of the port
   2. and refers to a WSDL service element, use the address for each
port element that the service contains.
2. If the endpointReference element is present, and has a wsa:Address
element with an absolute URI, use the wsa:Address element value
3. If there is no endpointReference element
   1) if the @uri attribute is present on the binding.ws element, it
must be relative (Assembly section 9), and the actual URI should contain
the structural URI of the service plus the value of the @uri attribute.
   2) if the @uri attribute is absent, the actual binding URI should
contain the structural URI of the binding.
4. If there is an endpointReference element with a relative wsa:Address
element, compute the address as per #3, and combine the relative address
from wsa:Address with the result. 
<mje>Should not #4 be a subclause of #2?  Clearly #3 is skipped if there is an 
endpointReference element</mje>

The URI for a binding.ws.element contained in a reference element SHOULD
be determined by the first of these rules that is satisfied: 
<mje>Why SHOULD rather than MUST here?</mje> 

1. If the @wsdlElement attribute is present
  1. and refers to a WSDL port element, use the address of the port
2. If the endpointReference element is present, and has a wsa:Address
element with an absolute URI, use the wsa:Address element value
3. and the @uri is present on the binding.ws element, and it is
absolute, use the value of the @uri attribute
4. and the @uri is present on the binding.ws element, and it is
relative, use the address determined by the targeted service 

<mje> I don't understand #4 here.  What is the "targeted service" in this case?  The 
@uri value is supposed to identify the "targeted service" - how can the address be 
determined from the targeted service without already knowing what the targeted 
service is - and in this case the @uri is supposed to contain this information. 
</mje>

If this makes sense to people, I can finish up by adding in the
appropriate text about how the endpointReference reference parameters
should be used.

-Eric.


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