Fwd: RE: [Xerces-J] Validating a DOM doc against the DTD

[Jeffrey Rodriguez <je...@hotmail.com>]

David you got the parse.setFeature right. The other step needed to setup 
DOMParser to validate is to provide an errorHandler.
You need to do the following:

1) Create a class that implements  class org.xml.sax.ErrorHandler interface.
2) Register your class using using DOMParser setErrorHandler method.

For an example of this look at the the two DOM wrappers files  under 
java/samples/dom/wrappers.

Thanks,
           Jeffrey Rodriguez
           IBM Cupertino



>From: "David Blevins" <da...@visi.com>
>Reply-To: xerces-dev@xml.apache.org
>To: <xe...@xml.apache.org>
>Subject: RE: [Xerces-J] Validating a DOM doc against the DTD
>Date: Tue, 22 Feb 2000 16:35:59 -0600
>
>Here's my test case.
>
>I set the validation feature in the parser and then parse the XML document.
>
>DOMParser parser = new DOMParser();
>parser.setFeature("http://xml.org/sax/features/validation", true);
>parser.setFeature("http://apache.org/xml/features/validation/warn-on-undecla
>red-elemdef", true);
>parser.parse("personal.xml");
>
>The DTD is as such.
>
>     <?xml encoding="US-ASCII"?>
>
>     <!ELEMENT personnel (person)+>
>     <!ELEMENT person (name,email*)>
>     <!ATTLIST person id ID #REQUIRED>
>     <!ELEMENT name (#PCDATA)>
>     <!ELEMENT email (#PCDATA)>
>
>The XML is as such.
>
>     <?xml version="1.0"?>
>     <!DOCTYPE personnel SYSTEM "personal.dtd">
>
>     <personnel>
>
>       <people>
>         <person id="one.worker">
>           <name>Bob</name>
>           <email>one@foo.com</email>
>         </person>
>
>         <person id="two.worker">
>           <name>Joe</name>
>           <email>two@foo.com</email>
>         </person>
>       </people>
>
>     </personnel>
>
>The XML document is intentionally invalid.
>The parser parses out the DOM and I am able to retrieve the Document 
>object.
>No error is thrown and the DOM is incorrect.
>
>What might be the problem or am I misunderstanding something?
>
>
>
> > -----Original Message-----
> > From: David Blevins [mailto:david.blevins@visi.com]
> > Sent: Monday, February 21, 2000 5:29 PM
> > To: Xerces-Dev
> > Subject: [Xerces-J] Validating a DOM doc against the DTD
> >
> >
> > How would I go about validating a DOM against the DTD?
> >
> > I tried using org.apache.xerces.parsers.RevalidatingDOMParser and then
> > calling validate on the base element.  This returned null even
> > though there
> > were discrepancies between the Element and the DTD.
> >
> > Is there another way to go about this or am I missing something
> > basic in the
> > RevalidatingDOMParser?
> >
> > -Dave
> >
> >
>

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