[DFDL-WG] Policy Driven DFDL?

[Mike Beckerle]

DFDL "the standard" says nothing about how to do this today. The way an
implementation applies value bindings to external variables is not defined
by the standard. Basically, nothing about APIs for driving a DFDL processor
is mentioned in the standard.

What you suggest is an interesting mechanism especially for when there are
many such variables and calling an API function to set them each is
burdensome.

...mike

On Wed, Jul 17, 2013 at 2:59 PM, Garriss Jr., James P.
<jgarriss at mitre.org>wrote:

>  Suppose you have an XSLT stylesheet with a bunch of global variables.
> Suppose that the value of those variables must be determined outside of the
> XSLT.  How do you get the values into it?  You might use parameters, and
> pass in the values when you call the transform() function in your code.
> But you could also use the document() function from within XSLT, read in an
> XML “policy” file that has all the values, then store the values in the
> variables.  You might call this approach policy driven XSLT.****
>
> ** **
>
> Can we do policy driven DFDL?  Yes, I know that we have parameters, but is
> there a way to read in a “policy” file (whether XML or not), read the
> values, then set the variables to those values?****
>
> ** **
>
> TIA****
>
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-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com
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