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Subject: RE: [wsbpel] RE: NCName restriction to avoid "."


Yes. Basically, anywhere that we're referring to a variable the type should be "BPELVariableName" instead of "NCName". Of course I'll leave the actual selection of the name to the schema powers at be but you get the idea.
 
The only downside to this is that we need to add a little more text to the current spec to define what this type is since it will appear in our pseudo schema examples. This may impact readability a little but it goes a long way in making the restriction explicit. If I were reading the spec for the first time and I saw "BPELVariableName" for the data type I would naturally assume that there was some restriction in play and then go and find the definition of this type. As it is now, NCName appears in multiple places without any kind of qualifier to indicate that it's a restricted NCName.


From: Alex Yiu [mailto:alex.yiu@oracle.com]
Sent: Sunday, June 04, 2006 7:26 PM
To: Mark Ford
Cc: 'wsbpeltc'; Alex Yiu
Subject: Re: [wsbpel] RE: NCName restriction to avoid "."


Mark,

Do we want to apply the same restriction to variable attribute of <from> and <to> spec also?

Thanks!

Regards,
Alex Yiu


Mark Ford wrote:
+1 from me ;)
 
This would also apply to the implicit variables created by a <fromPart> nested within an onEvent.
 
I'll open an issue on this.


From: Alex Yiu [mailto:alex.yiu@oracle.com]
Sent: Sunday, June 04, 2006 5:38 PM
To: wsbpeltc
Cc: Mark Ford; Alex Yiu
Subject: NCName restriction to avoid "." (was: [Fwd: BPEL Schema question])


Hi guys,

Mark has the following suggestion to use the data type other than NCName to restrict the "." usage in variable names.

I am OK with it.
Thought?

Thanks!

Regards,
Alex Yiu


-------- Original Message --------
Subject: BPEL Schema question
Date: Sun, 4 Jun 2006 13:27:35 -0400
From: Mark Ford <mark.ford@active-endpoints.com>
To: 'Alex Yiu' <alex.yiu@oracle.com>


Hi Alex,

What do you think about changing the data type of a variable's name to be a restriction of NCName to disallow the "." as described in Section 8.1? The dot is a legal value for NCNames but disallowed for Xpath binding purposes of message variables.

This also applies to the name of the counter attribute on a <forEach>.

I'd prefer to catch these types of errors with the XSD as opposed to having to write code to catch them during static analysis.

Thanks.




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