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RE: how to use xml:base and relative URLs with SAX/Java?

• To: Michael Kay <mike@s...>, 'Elliotte Harold' <elharo@m...>, xml-dev@l...
• Subject: RE: how to use xml:base and relative URLs with SAX/Java?
• From: Anil Philip <goodnewsforyou@y...>
• Date: Mon, 12 Dec 2005 15:05:20 -0800 (PST)
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ok, thank you.
So in my application, every time the xml file is
parsed and the "base" element encountered in the
endElement() callback, I shall pop up a dialog pane to
the user asking if the URL has changed and if so,
please do input the new base.
-
Anil



--- Michael Kay <mike@s...> wrote:

> > My basic question is: how do I use xml:base from
> Java?
> > Do I have to define everything from scratch in the
> > schema (in that case, what's the point of having
> > xml:base as a feature), or is there support in the
> > language for the construct?
> 
> In XML Schema, I think the point has already been
> covered: if your schema
> doesn't allow the xml:base attribute on a particular
> element, then an
> element that uses xml:base is invalid.
> 
> For SAX, there is no special support for xml:base.
> It's notified to your
> application like any other attribute. You
> application can therefore work out
> what the current base URI is, and use it to resolve
> any relative URI. This
> seems reasonable: SAX is explicitly designed as a
> low-level interface.
> 
> If you want a higher-level interface, XPath 2.0 will
> tell you the base URI
> of a node, which means the system will do the
> legwork for you. In fact, so
> will XOM. But SAX won't.
> 
> Michael Kay
> http://www.saxonica.com/
> 
> 
> 


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