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

[Monica J Martin <Monica.Martin@Sun.COM>]

> yiu: 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 clarification issue last summer - Issue 219)

mm3: Thanks for the additional information Alex. I had thought the 
reference would stay. What about the hint then that was discussed? Do we 
still need it?

>>> 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.
>