create xml using another namespace keyref

This should cover W3C XML Schema, Relax NG and DTD related problems.
osanha
Posts: 1
Joined: Tue Apr 22, 2014 7:14 pm

create xml using another namespace keyref

Post by osanha » Tue Apr 22, 2014 7:30 pm

test1.xsd

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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
targetNamespace="test1" xmlns="test1">

<xs:complexType name="Host">
<xs:attribute name="id" type="xs:string"/>
</xs:complexType>
<xs:element name="root">
<xs:complexType>
<xs:all>
<xs:element name="hosts">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" minOccurs="0" name="host" type="Host"/>
</xs:sequence>
</xs:complexType>
<xs:key name="Host-PK">
<xs:selector xpath="host"/>
<xs:field xpath="@id"/>
</xs:key>
</xs:element>
</xs:all>
</xs:complexType>
</xs:element>
</xs:schema>
test2.xsd

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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
targetNamespace="test2" xmlns="test2" xmlns:t1="test1">

<xs:import namespace="test1" schemaLocation="test1.xsd"/>

<xs:element name="root">
<xs:complexType>
<xs:all>
<xs:element name="server">
<xs:complexType>
<xs:attribute name="host" type="xs:string"/>
</xs:complexType>
</xs:element>
</xs:all>
</xs:complexType>
<xs:keyref name="Host-FK" refer="t1:Host-PK">
<xs:selector xpath="server"/>
<xs:field xpath="@host"/>
</xs:keyref>
</xs:element>
</xs:schema>
test1.xml

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<root xmlns="test1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="test1 test1.xsd">
<hosts>
<host id="ABC"/>
<host id="DEF"/>
</hosts>
</root>
test2.xml

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<root xmlns:t1="test1" xmlns="test2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="test2 test2.xsd">
<server host="ABC"/>
</root>

test2.xml raised error like below:

Error: [Xerces] Identity Constraint error: the keyref identity
constraint "Host-FK" refers to a key or unique that is out
of scope.

How can I fix it ? Another words, how import test1.xml instance from test2.xml ?