Re: [wsbpel] wsbpel 3/31/2006: propertyAlias and Return of MultipleNodes

[Alex Yiu <alex.yiu@oracle.com>]

Yes, we still need the text around "bpel:selectionFailure" in chapter 9. 
The usage context was different. In chapter 9, we are using 
propertyAlias in the context of correlationSet. It was not clear before 
that whether we should throw a selectionFailure or correlationViolation 
before we passed a related resolution. (I opened that clarifcation issue 
last summer - Issue 219)

Regards,
Alex Yiu
 

Monica J Martin wrote:

>
>> mm1: In the F2F when we discussed query and expressions, we touched 
>> on the application of the XPATH in the propertyAlias to the variable 
>> value and what happens if this results in a response that contains 
>> anything other than exactly one information item and/or a collection 
>> of CII, i.e. a bpel:selectionFailure fault MUST be thrown in the 
>> context of <copy> operation.  I believe the text was rewritten in 
>> Section 8 although at the time we suggested deletion.  Part of the 
>> reason for the rewording or deletion was because: In queries, is it 
>> acceptable to return multiple nodes with this function and the 
>> selections are filtered in the expression and end up with one node.
>> I don't see that we have specifically provide such a hint later in 
>> Section 8.2.6 as suggested. Is there still a need to do so? (Note: 
>> The text provided are brief notes, not proposed specification 
>> language if appropriate). Thanks. 
>
>
> mm2: In looking further I see the propertyAlias reference is in 
> Section 9.2. Do we still need the hint?  Is there any reason to still 
> consider why we originally wished to delete this text in the F2F and 
> that is still relevant. Thanks.
>
> Reference: 
> http://www.oasis-open.org/apps/org/workgroup/wsbpel/download.php/17462/reviewOfChapter9.rev1.5.doc 
>
>
>
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