RE: FpML-VAL solution for 559.

["Andrew Jacobs" <andrew@xxxxxxxxxxxxx>]

Allowing a model group as context is my preferred solution. We are making
increasing use of groups in the schema these days and I don't like the idea
of explicitly listing all the occurances in the rules.

Andrew 

-----Original Message-----
From: valwg@xxxxxxxx [mailto:valwg@xxxxxxxx] On Behalf Of
matthew.d.rawlings@xxxxxxxxxxxx
Sent: 16 April 2008 08:59
To: valwg
Subject: Re: FpML-VAL solution for 559.


Hi Christian -

I agree on your analysis. It was discussed at the VWG and I was asked to
make a proposal without using the parent or ancestor axis. That's what I
did. 

In the end it doesn't buy much as the risks of using ancestor and parent
axis are of picking up nodes by accident, which is unlikely because the
xs:group contents are included by name.

The problem with making the context an xs:group is that it isn't possible to
address it via XDM, PVSI, etc.. This isn't a barrier, just inconvenient. 

Either we put the rule on the group or we enumerate everywhere the group is
used as a context. Either choice is acceptable to me.

Matthew +44 7917596827


----- Original Message -----
From: Christian Nentwich [christian@xxxxxxxxxxxxxxxx]
Sent: 04/15/2008 11:06 PM CET
To: valwg@xxxxxxxx
Subject: Re: FpML-VAL solution for 559.



Matthew,

your solution using the sibling axis works perfectly well, but is 
completely equivalent to using ".." as far as the constructs in question 
are concerned (presumably we don't care much if the element is a 
following or preceding sibling, and no groups allow both).

I'm not sure it will do much except ensure that the reader has to know 
XPath axis syntax? At least ".." is familiar to anyone who has ever seen 
a command line or URL.

As a lazy alternative, can't we just say "Context: PayerReceiver.model" 
and let implementers work it out?

regards,

Christian


matthew.d.rawlings@xxxxxxxxxxxx wrote:
>
> Dear VWG Members -
>
> As requested at today's meeting I published a solution for
> http://www.fpml.org/issues/view.php?id=559 online.
>
> Matthew Rawlings
> +44 7917 596 827
> ----------------------------------------------------------------------
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