XPath correction applied only on the first Path in Field.XPath class
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Key: XERCESJ-1137
URL: http://issues.apache.org/jira/browse/XERCESJ-1137
Project: Xerces2-J
Type: Bug
Versions: 2.7.1
Reporter: George Cristian Bina
In Field.java on the inner XPath class there is the following comment and code:
// NOTE: We have to prefix the field XPath with "./" in
// order to handle selectors such as "@attr" that
// select the attribute because the fields could be
// relative to the selector element. -Ac
// Unless xpath starts with a descendant node -Achille Fokoue
// ... or a / or a . - NG
super(((xpath.trim().startsWith("/")
||xpath.trim().startsWith("."))?
xpath:"./"+xpath),
symbolTable, context);
>From this it is clear that the XPath Paths should be corrected to start with
>./ if they do not start with . or / but only the first one is corrected.
Thus an instance like:
<?xml version="1.0" encoding="UTF-8"?>
<test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="test.xsd">
<a>
<id1>v1</id1>
</a>
<a>
<id1>v2</id1>
</a>
</test>
will be reported invalid against test.xsd:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";>
<xs:element name="test">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="a"/>
</xs:sequence>
</xs:complexType>
<xs:key name="aID">
<xs:selector xpath=".//a"/>
<xs:field xpath="./@id1|./@id2|id1|./id2"/>
</xs:key>
</xs:element>
<xs:element name="a">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="a"/>
<xs:element ref="id1"/>
<xs:element ref="id2"/>
</xs:choice>
<xs:attribute name="id1" use="optional"/>
<xs:attribute name="id2" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="id1" type="xs:string"/>
<xs:element name="id2" type="xs:string"/>
</xs:schema>
Replacing:
<xs:field xpath="./@id1|./@id2|id1|./id2"/>
with
<xs:field xpath="./@id1|./@id2|./id1|./id2"/>\
makes Xerces report that the schema is valid.
Regards,
George
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