RE: [wsbpel] Groups - New Action Item #0067 Change example XPath expression ...

["Mark Ford" <mark.ford@active-endpoints.com>]

The example Xpath expressions from those two lines are as follows:

.	a single XML infoset item: e.g. $myFooVar/lines/line[2] 
.	a collection of XML infoset items e.g. $myFooVar/lines 

After reading that, I imagine that the XML might look like this:

<var>
  <lines>
     <line>one</line> 
     <line>two</line> 
     <line>three</line> 
   </lines>
</var>

The first expression illustrates selecting a single infoset item, which
would result in the 2nd line element.

The second expression would select a single element, the lines element. This
element has multiple children, but it's still a single element. In order to
get multiple elements back from the expression you would have to select the
individual lines. This could be done a number of ways but I think
$myFooVar/lines/* is the clearest.

If I misread the above or if you feel strongly about keeping the current
example then I'll remove the action item since it's a minor thing and I
don't want to open debate on a section we already reviewed.

Thanks

-----Original Message-----
From: Alex Yiu [mailto:alex.yiu@oracle.com] 
Sent: Thursday, March 30, 2006 2:57 PM
To: mark.ford@active-endpoints.com
Cc: wsbpel@lists.oasis-open.org; Alex Yiu
Subject: Re: [wsbpel] Groups - New Action Item #0067 Change example XPath
expression ...


Hi Mark,

I am not sure I follow your suggestion/comment.
My expectation/interpretation is: "lines" is the parent element of multiple
"line" elements.


Regards,
Alex Yiu


mark.ford@active-endpoints.com wrote:

>OASIS Web Services Business Process Execution Language (WSBPEL) TC member,
>
>Mr Mark Ford has created a new action item.
>
>Number: #0067
>Description: Change example XPath expression ...
>Owner: Unassigned
>
>
>Comments:
>Mr Mark Ford  2006-03-30 19:29 GMT
>While the current example is valid XPath, it looks odd following the
example for selecting a single infoset item which is:
$myFooVar/lines/line[2]. The new example better illustrates that we're
expecting to get multiple "line" elements (and other children) while the
previous example would only return a collection if there were multiple
"lines" elements.
>
>View Details:
>http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/action_item.php
?action_item_id=1426
>
>
>
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