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The problem you are facing is a common misunderstanding that people face with dealing with derivation by restriction in W3C XML Schema. Your derivation breaks the following rule
Schema Component Constraint: Particle Restriction OK (Elt:Elt -- NameAndTypeOK)
For an element declaration particle to be a ·valid restriction· of another element declaration particle all of the following must be true:
1 The declarations' {name}s and {target namespace}s are the same.
--
PITHY WORDS OF WISDOM
If at first you don't succeed, imitate.
This posting is provided "AS IS" with no warranties, and confers no rights.
>
>
> -----Original Message-----
> From: fangc@bsoft.com.cn [mailto:fangc@bsoft.com.cn]
> Sent: Wednesday, May 07, 2003 6:38 PM
> To: Henry S. Thompson
> Cc: xml-dev@lists.xml.org
>
> Hi
>
> I had a post in 2003-4-29, said I m could import a abstract
> complex type and derived from that complex type. And thanks
> Mr. Henry S. Thompson, he give me the advice that I use the
> same target namespace in import file.
> Well, after I using the different target Namespace, the
> problem still exists.
> I could not find any mistake I have made in the file. So I
> think maybe it's the parser's bug,and I fix the MSXML 4.0
> Service Pack 2,but the issue still occur.
> What could I do?
> This problem has tortured me for a whole week.
> Is it a bug? Or are these file correct?
> Could anyone help me?
>
> Here is the file.
> main.xsd
> <xs:schema targetNamespace="http://www.test.com/";
> xmlns="http://www.test.com/";
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> elementFormDefault="qualified">
> <xs:simpleType name="PowerEnum">
> <xs:restriction base="xs:string">
> <xs:enumeration value="1Pounds"/>
> <xs:enumeration value="2Pounds"/>
> <xs:enumeration value="300Pounds"/>
> </xs:restriction>
> </xs:simpleType>
> <xs:complexType name="Man" abstract="true">
> <xs:sequence>
> <xs:element name="Name" type="xs:string"/>
> <xs:element name="Power" type="PowerEnum"/>
> </xs:sequence>
> </xs:complexType>
> </xs:schema>
>
> main_derive.xsd
> <xs:schema xmlns="http://www.test.com/ok";
> targetNamespace="http://www.test.com/ok";
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:im="http://www.test.com/"; elementFormDefault="qualified">
> <xs:import namespace="http://www.test.com/";
> schemaLocation="main.xsd"/>
> <xs:complexType name="SuperMan">
> <xs:complexContent>
> <xs:restriction base="im:Man">
> <xs:sequence>
> <xs:element name="Name"
> type="xs:string"/>
> <xs:element name="Power">
> <xs:simpleType>
>
> <xs:restriction base="im:PowerEnum">
>
> <xs:enumeration value="300Pounds"/>
>
> </xs:restriction>
> </xs:simpleType>
> </xs:element>
> </xs:sequence>
> </xs:restriction>
> </xs:complexContent>
> </xs:complexType>
> <xs:element name="test">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="OneMan"
> type="SuperMan"/>
> <xs:element name="ok" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:schema>
>
> what could I do?
> I check the file for hundreds of times. But no miracle
> happened. How depress I was!
> Best Regards
> fbeyond
> -----邮件原件-----
> 发件人: Henry S. Thompson [mailto:ht@cogsci.ed.ac.uk]
> 发送时间: 2003年4月30日 17:40
> 收件人: fc_方超
> 抄送: xml-dev@lists.xml.org
> 主题: Re: [xml-dev] import problem
>
> =?utf-8?B?ZmNf5pa56LaF?= <fangc@bsoft.com.cn> writes:
>
> > Hi,I got a namespace problem.
>
> You're using import for a schema document with the same
> target namespace as the importing document -- you should be
> using include.
>
> See the W3C XML Schema Primer [1] for an example.
>
> ht
>
> [1] http://www.w3.org/TR/xmlschema-0/#SchemaInMultDocs
> --
> Henry S. Thompson, HCRC Language Technology Group,
> University of Edinburgh
> Half-time member of W3C Team
> 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44)
> 131 650-4440
> Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
> URL: http://www.ltg.ed.ac.uk/~ht/ [mail
> really from me _always_ has this .sig -- mail without it is
> forged spam]
>
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