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paul elzingaSubject: Validating constraints
Author: paul elzinga
Date: 06 Oct 2005 09:20 AM
I've problems with validating a XML file with a XSD when using unique and keyref constraints. We are swapping from altova to stylus and the stylus doesn't validate the XML-file while Altova does. What is the problem here?


UnknownexampleBV.zip

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(Deleted User) Subject: Validating constraints
Author: (Deleted User)
Date: 06 Oct 2005 12:56 PM
This happens due to the different types of the attributes used as key and as a reference. ID attribute has a type "xs:string" and "IDActiviteit", for example, is missing type declaration, so by default it is of type "anySimpleType". This is what written in specification:

"
2.2.1.2

The mapping from lexical space to value space is unspecified for items whose type definition is the simple ur-type definition. Accordingly this specification does not constrain processors' behaviour in areas where this mapping is implicated, for example checking such items against enumerations, constructing default attributes or elements whose declared type definition is the simple ur-type definition, checking identity constraints involving such items."

So, if you want all processors to provide same results you have
to declare attributes used as a references as "xs:string" attributes.

At the same time several validators will perform mapping automatically, for example .NET, XSV or Xerces-J. You can pick one you want to use from the dropdown list attached to the "Validate Document" toolbar button.

Posttop
paul elzingaSubject: Validating constraints
Author: paul elzinga
Date: 12 Oct 2005 07:56 AM
Problem is solved, thanks a lot!!

>This happens due to the
>different types of the
>attributes used as key and as
>a reference. ID attribute has
>a type "xs:string" and
>"IDActiviteit", for example,
>is missing type declaration,
>so by default it is of type
>"anySimpleType". This is what
>written in specification:
>
>"
> 2.2.1.2
>
>The mapping from lexical space
>to value space is unspecified
>for items whose type
>definition is the simple
>ur-type definition.
>Accordingly this specification
>does not constrain processors'
>behaviour in areas where this
>mapping is implicated, for
>example checking such items
>against enumerations,
>constructing default
>attributes or elements whose
>declared type definition is
>the simple ur-type definition,
>checking identity constraints
>involving such items."
>
>So, if you want all processors
>to provide same results you
>have
>to declare attributes used as
>a references as "xs:string"
>attributes.
>
>At the same time several
>validators will perform
>mapping automatically, for
>example .NET, XSV or Xerces-J.
>You can pick one you want to
>use from the dropdown list
>attached to the "Validate
>Document" toolbar button.

 
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