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Subject: RE: [ws-rx] new issue: What is the purpose of the WSDL?
Thanks for writing this up Jonathan. As
far as I’m concerned this clears up any confusion in the area. +1…. -Charlton. From: Jonathan Marsh
[mailto:jonathan@wso2.com] Title: What is the
purpose of the WSDL? Issue: The purpose of the
WSDL is not terribly clear. I doubt one would actually describe a Web
service using this WSDL, as RM is generally considered an infrastructure-level
protocol and WSDL typically describes an application-level message
exchange. In addition, if machine-processing of this WSDL is expected,
not all message exchanges are described – after a MakeConnection message
comes _in_ to the service, a
CreateSequence message may come _out_,
yet CreateSequence is only described as an _in_
message in the WSDL. The limits of the WSDL in describing the complete
exchanges of messages should be noted. Proposal: fix this
editorially by adding the following explanatory text to “Appendix
B. WSDL”: This WSDL describes the RM protocol
from the point of view of an RM Destination. In the case where an
endpoint acts both as an RM Destination and an RM Source, note that additional
messages may be present in exchanges with that endpoint. Also note that this WSDL is intended
to describe the internal structure of the RM protocol, and will not generally
to appear in a description of an RM-capable Web service. See RM-Policy
[ref] for a higher-level mechanism to indicate that RM is engaged. Jonathan Marsh - http://www.wso2.com - http://auburnmarshes.spaces.live.com |
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