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XML Spy and complex type restriction

From: Matteo Garutti <m.garutti@cribisnetgroup.com>
Date: Tue, 28 May 2002 04:18:31 -0400 (EDT)
Message-ID: <7BF52F4688BCD411AD6700508BAE2C1102841A8A@crifmail.crifnet.com>
To: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>
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 ?? 
Thanks in advance for your support,
bye

MATTEO GARUTTI 
Technology Advisor 
Internet Competence Center 
CRIBISNET GROUP S.p.A. 

---------------
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 04:26:06 UTC

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