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Re: XML Spy and complex type restriction

From: Eddie Robertsson <erobertsson@allette.com.au>
Date: Wed, 29 May 2002 09:43:15 +1000
Message-ID: <3CF41613.F24E88EA@allette.com.au>
To: Matteo Garutti <m.garutti@cribisnetgroup.com>
CC: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>
Hi,

Matteo Garutti wrote:

> Hi !
> Let's take a look at the following example: we have a BaseLibrary schema in
> which we have defined a complex type named "BaseType" which is a simple
> extension of xs:string; in another schema, FinalSchema.xsd, we have defined
> 2 elements which derives by restriction from the "BaseType"; the first
> element "child_1" fixes the length to two chars, the second one "child_2"
> fixes the length to four chars. Eventually we created an XML document based
> on FinalSchema.xsd, and we set the content of "child_1" and "child_2" nodes
> according to their types as defined in the schema.
> Then, we have tried to validate this XML document using 4 different XML
> engines and, unfortunately, we got different results:
>
> (1) XML Spy 4.2                                         --> Ok, the document
> is valid
> (2) Microsoft .NET ValidatingReader Object      --> Ok, the document is
> valid
> (2) XML Spy 4.3                                         --> Error, value
> does not macth facet length="4" in element dn:child_1
> (4) XML Spy 4.4                                 --> Error, value does not
> macth facet length="4" in element dn:child_1
>
> It seems that XML Spy (4.3 - 4.4) recognizes only the last restriction of
> the complex type "BaseType".
> It's somewhat stange that XML Spy changed its behaviour in its two last
> releases, isn't it ?
> Which is the right behaviour according to W3C standard ??

Your schema looks fine to me so I would suggest that a bug was introduced in the
later versions of XML Spy.

Cheers,
/Eddie

> ---------------
> BaseLibrary.xsd
> ---------------
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema targetNamespace="urn:BaseNamespace" xmlns:mq="urn:BaseNamespace"
> xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
> attributeFormDefault="qualified">
>         <xs:complexType name="BaseType">
>                 <xs:simpleContent>
>                         <xs:extension base="xs:string"/>
>                 </xs:simpleContent>
>         </xs:complexType>
> </xs:schema>
>
> ----------------
> FinalSchema.xsd
> ----------------
> <xs:schema targetNamespace="urn:DerivedNamespace"
> xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:bn="urn:BaseNamespace"
> elementFormDefault="qualified" attributeFormDefault="qualified">
>         <xs:import namespace="urn:BaseNamespace"
> schemaLocation="BaseLibrary.xsd"/>
>         <xs:element name="root">
>                 <xs:complexType>
>                         <xs:sequence>
>                                 <xs:element name="parent">
>                                         <xs:complexType>
>                                                 <xs:sequence>
>                                                         <xs:element
> name="child_1">
>
> <xs:complexType>
>
> <xs:simpleContent>
>
> <xs:restriction base="bn:BaseType">
>
> <xs:length value="2"/>
>
> </xs:restriction>
>
> </xs:simpleContent>
>
> </xs:complexType>
>                                                         </xs:element>
>                                                         <xs:element
> name="child_2">
>
> <xs:complexType>
>
> <xs:simpleContent>
>
> <xs:restriction base="bn:BaseType">
>
> <xs:length value="4"/>
>
> </xs:restriction>
>
> </xs:simpleContent>
>
> </xs:complexType>
>                                                         </xs:element>
>                                                 </xs:sequence>
>                                         </xs:complexType>
>                                 </xs:element>
>                         </xs:sequence>
>                 </xs:complexType>
>         </xs:element>
> </xs:schema>
>
> ------------------
> FinalDocument.xml
> ------------------
> <dn:root xmlns:dn="urn:DerivedNamespace" xmlns:bn="urn:BaseNamespace"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="urn:DerivedNamespace FinalSchema.xsd">
>         <dn:parent>
>                 <dn:child_1>12</dn:child_1>
>                 <dn:child_2>1234</dn:child_2>
>         </dn:parent>
> </dn:root>
Received on Tuesday, 28 May 2002 19:30:15 UTC

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