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I believe you found the cause in your explanation below - the
restriction is not actually a restriction. You would have to - for
example - change one of the maxOccurs facets from "unbounded" to "5" (or
anything other than "unbounded").
Kind Regards,
Joe Chiusano
Booz | Allen | Hamilton
Strategy and Technology Consultants to the World
Brent Worden wrote:
>
> I have a question regarding the following schema:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsd:schema targetNamespace="urn:example" xmlns="urn:example"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema"; elementFormDefault="qualified"
> attributeFormDefault="unqualified">
>
> <xsd:element name="Root" type="RestrictedType"/>
>
> <xsd:complexType name="RestrictedType">
> <xsd:complexContent>
> <xsd:restriction base="BaseType">
> <xsd:sequence>
> <xsd:element name="FirstElement">
> <xsd:complexType>
> <xsd:choice>
> <xsd:element name="FirstChoice" type="xsd:string"
> maxOccurs="unbounded"/>
> <xsd:element name="SecondChoice" type="xsd:string"
> maxOccurs="unbounded"/>
> </xsd:choice>
> </xsd:complexType>
> </xsd:element>
> <xsd:element name="SecondElement" type="xsd:string" minOccurs="0"
> maxOccurs="unbounded"/>
> </xsd:sequence>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
>
> <xsd:complexType name="BaseType">
> <xsd:sequence>
> <xsd:element name="FirstElement">
> <xsd:complexType>
> <xsd:choice>
> <xsd:element name="FirstChoice" type="xsd:string"
> maxOccurs="unbounded"/>
> <xsd:element name="SecondChoice" type="xsd:string"
> maxOccurs="unbounded"/>
> </xsd:choice>
> </xsd:complexType>
> </xsd:element>
> <xsd:element name="SecondElement" type="xsd:string" minOccurs="0"
> maxOccurs="unbounded"/>
> </xsd:sequence>
> </xsd:complexType>
>
> </xsd:schema>
>
> When I try validating a simple XML document using Xerces with full schema
> checking enabled, I get the following error message:
> Error for type 'RestrictedType'. The particle of the type is not a valid
> restriction of the particle of the base.
>
> Through the process of elimination, I've determined the trouble lies in
> FirstElement found in the two types. I've looked at the schema contraints
> at http://www.w3.org/TR/xmlschema-1/#derivation-ok-restriction that I
> believe govern this issue. With reading those and since, FirstElement is a
> verbatium copy from BaseType to RestrictedType I've been unable to determine
> the cause for the invalid restriction message.
>
> Can someone give me some insight into the cause of the violation?
>
> Thanks,
>
> Brent Worden
>
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--
Kind Regards,
Joseph Chiusano
Associate
Booz | Allen | Hamilton
|
