Re: [xsl] Schema and fixed attribute value

["Bruno Chatel" <bcha@xxxxxxxxxxx>]

    Hi Jenni,

thanks for this answer :-)

> >  I tried to load the unit.xml as a DOMSource by using Xerces2.0.2  parser
> >  with features like
> >
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking",true);
> >  parser.setFeature("http://apache.org/xml/features/validation/schema",true);
> >  parser.setFeature("http://xml.org/sax/features/namespaces";, true);
> >
parser.setFeature("http://apache.org/xml/features/validation/schema/normalized-value",true
> >   );
> >
parser.setFeature("http://apache.org/xml/features/validation/schema/element-default",true)
> >  ;
> >
> >  but the attribute value seems to be not accessible in my stylesheet.
>
> That surprises me. Xerces should be able to add the attribute in the
> DOM just as if it had been specified in the XML document originally.
> You might try setting the validation feature to true as well as the
> ones that you've set above:
>
>   parser.setFeature("http://xml.org/sax/features/validation",true);

This feature seems to check the document against a DTD.
When setting it, I get error message about needed declaration for root element
of my document (correctly declared in my schema).

But, I am not sure that the problem is here...
As far as i understand the Xalan processing model, the internal tree representation
is not (on 2.3.x) a DOM tree (but something called DTM).
I don't know if processing a DOM source (loaded by Xerces) implies that
Schema properties are kept in internal tree model.
Any idea about this ?
Is it the same with other processors (such Saxon, ect..) ?


> The Xerces documentation suggests that the normalized-value and
> element-default features only work if validation occurs, which implies
> that the same might be true for fixed/default attribute values as
> specified in XML Schema.
>
> If that doesn't work, I suggest that you ask on the
> xerces-j-user@xxxxxxxxxxxxxx mailing list.

I ask on xalan-j-user list..


> If all else fails, you might be able to access the schema from XSLT in
> order to work out what the fixed value of the attribute is. However,
> processing XML Schemas with XSLT is not trivial (unless you constrain
> the schemas), so if you can fix the DOM that you're passing to Xalan
> that will be the best option.

Yes.. It is my last solution if I can not get default values.. But I hope that I will
not need to do this !!!


-- bruno --
Bruno Chatel
Tel : (+33)[0] 4 96 11 14 57
Email : bcha@xxxxxxxxxxx
http://www.chadocs.com
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