[I believe that much can be done with XSModel, although it was initially
designed mostly in support of PSVI types of information.
There is a non-Apache open source library which does provide somewhat
higher level functions to navigate relationships between schema infoset
components. For info, see http://www.eclipse.org/xsd ].
Huzefa Hakimi
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
.com> cc:
Subject: Re: Parsing XML Schema
11/09/2003 08:21
PM
Please respond to
xerces-j-user
Things seems to be working after following the notes
given by Michael. Thanks
At present I am not able to figure out, If I get the
schemainformation() and obtain XSModel from
ElementPSVI, one can get
1. Elements, attributes, defined
2. Types of corresponding elements and attributes
But if one has also to capture the relationship
between the types, attributes and elements defined in
Schema, does at xsmodel defines a way for it i.e.
given an element one can find its descendands and
ancestors.
Thanks for the co-operation provided.
-Huzefa
--- Huzefa Hakimi <[EMAIL PROTECTED]> wrote:
> Thanks Michael.
>
> It works that ways but as far as I can infer I am
> not using any other JAXP version other than provided
> by Xerces 2.5. And at present am using some of JAXP
> 1.1 methods to use functionality of SAX 2.0 and this
> is embedded within xerces 2.5. Than what can the
> problem be.
>
> Thank you once again.
> -Huzefa
>
> Michael Glavassevich <[EMAIL PROTECTED]> wrote:
> Hi Huzefa,
>
> You seem to be trying to cast the JAXP [1] SAXParser
> to a PSVIProvider. If
> you're using JAXP, you need to retrieve the
> underlying XMLReader and cast
> this object to a PSVIProvider. To answer your other
> question. If you want
> to get PSVI information you need to keep a reference
> to a PSVIProvider
> (this is also the parser) so that it's accessible
> during the relevant
> callbacks.
>
> [1]
>
http://xml.apache.org/xerces2-j/javadocs/api/javax/xml/parsers/SAXParser.html
>
> On Sat, 8 Nov 2003, Huzefa Hakimi wrote:
>
> > Thanks.
> > I have some related to it problems
> >
> > 1.
> >
> > .....
> > SAXParser saxParser = factory.newSAXParser();
> > PSVIProvider psvi = (PSVIProvider)saxParser;
> > .....
> >
> > this code snipet gives me ClassCastException?
> >
> > At this moment how is it related to
> AbstractSaxParser provided by Xerces which
> implements PSVIProvider
> >
> > 2. All the SAXHandlers implemented callback
> methods reside in different class Handlers so do we
> have to pass around this instance of PSVIProvider to
> the handler class implementation to take action.
> Sorry am in dual state of mind.
>
> ---------------------------
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: [EMAIL PROTECTED]
> E-mail: [EMAIL PROTECTED]
>
>
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