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Subject: Re: [wsbpel] expressionLanguage and queryLanguage URI


Good catch.  I beleive there is an ISO tech doc 21??? or something - 
that references the rules for URNs that OASIS is using.

Small but important issue.


Alex Yiu wrote:

> Hi,
> In the course of Issue 89 discussion today, Chris Keller mentioned a 
> very good point the URI value of the expression language and query 
> language.
> Currently, http://www.w3.org/TR/1999/REC-xpath-19991116 is used as the 
> default value of both expression language and query language, which 
> represents XPath 1.0.
> In order for us to make use of XPath 1.0 within BPEL, the BPEL spec 
> needs to define additional semantics for the cross-language bindings. 
> Those details are actually specific to BPEL language in a sense. 
> Strictly speaking, it is not appropriate to "hijack" the W3C namespace 
> for our own use.
> Therefore, I suggest to replace the following text in BPEL spec:
> The default value for this attribute is XPath 1.0, represented by the 
> URI of the XPath 1.0 specification: 
> http://www.w3.org/TR/1999/REC-xpath-19991116.
> with:
> The default value for this attribute is:  
> "urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0", which represents the 
> usage of XPath 1.0 within WS-BPEL 2.0. The URI of the corresponding 
> XPath 1.0 specification is: http://www.w3.org/TR/1999/REC-xpath-19991116.
> I have done some internet searching on OASIS URN namespace convention.
> Reference: 
> http://wayf.internet2.edu/opensaml/java/doc/api/constant-values.html
> I believe we still need try to get some official document from OASIS 
> on how to use an OASIS-based URN.
> Does the above make sense?
> If so, I will open a new issue.
> Thanks!
> Regards,
> Alex Yiu

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