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The scope of XML Schema validation is a single document.
The only way to do validation across multiple documents is to do a
transformation that assembles them into a single document and then apply
validation to that.
Michael Kay
http://www.saxonica.com/
> -----Original Message-----
> From: Stephan Dick [mailto:stephan.dick@siemens.com]
> Sent: 22 February 2005 10:46
> To: xml-dev@lists.xml.org
> Subject: [xml-dev] schema keyref to other schema.
>
> Hi
>
> I defined two schemas somewhat like a RDB model. One holds a
> primary key
> and the other one a foreign key pointing to the primary key. Now the
> schemas are valid (in Stylus Studio XML) but i can't get the
> xml file to
> validate. How can i tell the "slave"-xml file to include the "master"
> file? Any help is really appreciated!
>
> key.xsd
> -------
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:test="http://www.test.com/test";
> targetNamespace="http://www.test.com/test";
> elementFormDefault="qualified" attributeFormDefault="unqualified">
> <xs:element name="root">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="primary" type="xs:string">
> <xs:key name="PrimaryKey">
> <xs:selector xpath="./primary"/>
> <xs:field xpath="."/>
> </xs:key>
> </xs:element>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:schema>
>
> foreignKey.xsd
> --------------
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:test="http://www.test.com/test"; elementFormDefault="qualified"
> attributeFormDefault="unqualified">
> <xs:import namespace="http://www.test.com/test";
> schemaLocation="Key.xsd"/>
> <xs:element name="root">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="foreignKey" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> <xs:keyref name="ForeignKeyRef" refer="test:PrimaryKey">
> <xs:selector xpath="./foreignKey"/>
> <xs:field xpath="."/>
> </xs:keyref>
> </xs:element>
> </xs:schema>
>
> TestKey.xml -> valid!
> ------------
> <?xml version="1.0" encoding="UTF-8"?>
> <root xmlns="http://www.test.com/test";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://www.test.com/test D:\Temp\FK\Key.xsd">
>
> <primary>Primary</primary>
> </root>
>
> TestForeignKey.xml Error: The keyref 'ForeignKeyRef' refers to a
> key/unique that is out of scope.
> ------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <root xmlns:test="http://www.test.com/test";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:noNamespaceSchemaLocation="D:\Temp\FK\ForeignKey.xsd">
> <foreignKey>Primary</foreignKey>
> </root>
>
>
>
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