Validate XML against XSD generated by Oxygen

This should cover W3C XML Schema, Relax NG and DTD related problems.
Fiona Chen
Posts: 3
Joined: Fri Aug 21, 2020 5:40 pm

Validate XML against XSD generated by Oxygen

Post by Fiona Chen » Fri Aug 21, 2020 6:01 pm

Hello:

I use Oxygen to generate XSD. However, Oxygen hinted Error:

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The {target namespace} of an attribute declaration must not match 'http://www.w3.org/2001/XMLSchema-instance'.
This predicament causes me to comment out below:

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  <xs:import namespace="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="xsi.xsd"/>
If I comment out the subsequent referenced schema in the orignial XML:

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 <xs:attribute ref="xsi:schemaLocation" use="required"/>

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  <xs:attribute ref="xsi:type" use="required"/>
My Java API will fail the XSD validation, as the original XML referenced the import ns:

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 <value nullFlavor="OTH" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CD">
The Java API validation throws error:

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 cvc-elt.4.2: Cannot resolve 'CD' to a type definition for element 'value'.
I review below post but as the "CD" uses

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xmlns:xsi
, it wouldn't work.

topic616.html

Do you have a realistic solution for this problem?

tavy
Posts: 235
Joined: Thu Jul 01, 2004 12:29 pm

Re: Validate XML against XSD generated by Oxygen

Post by tavy » Tue Aug 25, 2020 11:06 am

Hello,

We are using Trang to generate an XSD schema from XML files. It seems that Trang generates an xsi.xsd schema when you use attributes from "http://www.w3.org/2001/XMLSchema-instance" namespace. There is already an issue for this on the Trang project:
https://github.com/relaxng/jing-trang/issues/132

As an workaround you can remove the "xsi.xsd" schema import from your generated XSD schema. You need to delete the following line:

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<xs:import namespace="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="xsi.xsd"/>
Best Regards,
Octavian
Octavian Nadolu
<oXygen/> XML Editor
http://www.oxygenxml.com

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