Octavian Nadolu created XERCESJ-1601:
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Summary: Keyref to a key in a different scope
Key: XERCESJ-1601
URL: https://issues.apache.org/jira/browse/XERCESJ-1601
Project: Xerces2-J
Issue Type: Bug
Components: XML Schema 1.1 Structures
Affects Versions: 2.11.0
Reporter: Octavian Nadolu
Priority: Minor
If I validate the "instance.xml" with the XML Schema "test.xsd" I get the
following error:
cvc-identity-constraint.4.3: Key 'kr' with value 'a2' not found for identity
constraint of element 'parent'.
I tested on the xml-schema-1.1-dev branch.
Xerces discards all the key defined on "child" elements except the ones defined
on the last "child" element. In the example only the "a1" and "a4" values are
used when the keyref is checked.
The schema added below defines a key on the "child" element selecting the
"element/@id" attribute and a key reference on the "parent" element that
specifies that "test/@ref" points to "child/element/@id" attributes.
All the keys defined in the "child" elements should be valid, except the ones
that are duplicates. There is a discussion about this on the XML Schema Dev
list:
http://lists.w3.org/Archives/Public/xmlschema-dev/2013Jan/0004.html
---- instance.xml------------------
<?xml version="1.0" encoding="UTF-8"?>
<parent xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="test.xsd">
<child>
<element id="a1"/>
<element id="a2"/>
</child>
<child>
<element id="a1"/>
<element id="a4"/>
</child>
<test ref="a2"/>
<test ref="a1"/>
</parent>
-------------------
------------test.xsd---------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
elementFormDefault="qualified">
<xs:element name="parent">
<xs:complexType>
<xs:sequence>
<xs:element name="child" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element name="element">
<xs:complexType>
<xs:attribute name="id" use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:key name="k">
<xs:selector xpath="element"/>
<xs:field xpath="@id"/>
</xs:key>
</xs:element>
<xs:element name="test" maxOccurs="unbounded">
<xs:complexType>
<xs:attribute name="ref"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:keyref name="kr" refer="k">
<xs:selector xpath="test"/>
<xs:field xpath="@ref"/>
</xs:keyref>
</xs:element>
</xs:schema>
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