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Posted to j-dev@xerces.apache.org by Greg Zoller <gz...@hotmail.com> on 2000/12/15 06:55:16 UTC

Schemas Not Catching Errors?

Hello.  I'm trying to get Xerces to validate using XML schema.
I've turned on the validation feature in my 15-line Java program
that does nothing but parse the doc and report exceptions.

Here's my xsd:

<?xml version="1.0" encoding="UTF-8"?>
<schema>
        <ElementType name="description" content="textOnly"
           model="closed"/>
        <ElementType name="role" content="eltOnly" model="closed">
                <element type="description" minOccurs="1"
                   maxOccurs="1"/>
                <AttributeType name="name" />
                <attribute type="name" />
        </ElementType>
        <element type="role" />
</schema>

And my XML file:

<?xml version="1.0" encoding="UTF-8"?>
<Top xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation='schema.xsd' >

        <role name="hey">
        </role>
</Top>

This should give me an error because the <role> tag is missing
the required <description> tag, but my parser happily accepts this
with no problems.

Just as a sanity check I played with the included personnel-schema.xml
example.  In theory at least 1 <person> element is required in the
<personnel> element, but if I delete all the <person> elements my
parser is still happy!

Anyone see what I'm doing wrong?

Thanks
Greg
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Re: Schemas Not Catching Errors?

Posted by Eric Ye <er...@locus.apache.org>.
You need to have a errorhandler and register it on the parser, for detail,
please refer to sax.SAXCount sample under samples directory.

Eric Ye
IBM-Cupertino.
----- Original Message -----
From: "Greg Zoller" <gz...@hotmail.com>
To: <xe...@xml.apache.org>
Sent: Friday, December 15, 2000 5:55 AM
Subject: Schemas Not Catching Errors?


> Hello.  I'm trying to get Xerces to validate using XML schema.
> I've turned on the validation feature in my 15-line Java program
> that does nothing but parse the doc and report exceptions.
>
> Here's my xsd:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <schema>
>         <ElementType name="description" content="textOnly"
>            model="closed"/>
>         <ElementType name="role" content="eltOnly" model="closed">
>                 <element type="description" minOccurs="1"
>                    maxOccurs="1"/>
>                 <AttributeType name="name" />
>                 <attribute type="name" />
>         </ElementType>
>         <element type="role" />
> </schema>
>
> And my XML file:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <Top xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
>         xsi:noNamespaceSchemaLocation='schema.xsd' >
>
>         <role name="hey">
>         </role>
> </Top>
>
> This should give me an error because the <role> tag is missing
> the required <description> tag, but my parser happily accepts this
> with no problems.
>
> Just as a sanity check I played with the included personnel-schema.xml
> example.  In theory at least 1 <person> element is required in the
> <personnel> element, but if I delete all the <person> elements my
> parser is still happy!
>
> Anyone see what I'm doing wrong?
>
> Thanks
> Greg
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com
>
>
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