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https://issues.apache.org/jira/browse/XERCESJ-1601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13558651#comment-13558651
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Octavian Nadolu commented on XERCESJ-1601:
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Thanks Mukul,
You are right, the specification is not so clear about the IDC constraints.
This is why my colleague George Bina started the discussion on the XML Schema
Dev list. But I am inclined to believe that the key/keyref should work in the
example that I post it. This is why a added this issue.
Maybe you should add your comments on the on xmlschema-dev thread to get the
opinion of the others.
> 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
> Attachments: keyref1_1.xsd, keyref1_2.xsd, keyref1.xml, keyref2.xml,
> keyref2.xsd
>
>
> 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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