<selector xpath="."/> doesn't work

["Markus Seibold" <Markus.Seibold@gmx.net>]

Hello,
I am using <key> and <keyref> in my XML Schema.

When I declare the <key> element globally ('AdminUnitKey_Global'), the key's
are set appropriatly.

When I want to declare the <key> element locally ('AdminUnitKey_Local'; by
using the expression <selector xpath="."/ under the <AdminUnit> element) the
key is not set and the schema does not validate because the <keyref> fails to
refer to some key.

I thought that xpath="." refers to the current element where the xpath
expression is set? Why doesn't that work with <key>?

Thanks, Markus

<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opentourism.org";
xmlns="http://www.w3.org/2001/XMLSchema"; xmlns:utour="http://www.opentourism.org";
elementFormDefault="unqualified">
	<element name="Country">
		<complexType>
			<sequence>
				<element name="CountryID" type="string"/>
				<element name="AdminUnit" minOccurs="0" maxOccurs="unbounded">
					<complexType>
						<sequence>
							<element name="AdminUnitName" type="string"/>
							<element name="SubAdminUnits" minOccurs="0" maxOccurs="unbounded">
								<complexType>
									<sequence>
										<element name="SubAdminUnitName" type="string"/>
									</sequence>
								</complexType>
							</element>
						</sequence>
					</complexType>
<!--
					<key name="AdminUnitKey_Local">
						<selector xpath="."/>
						<field xpath="AdminUnitName"/>
					</key>
					<keyref name="AdminUnitRef_Local" refer="utour:AdminUnitKey_Local">
						<selector xpath="SubAdminUnits"/>
						<field xpath="SubAdminUnitName"/>
					</keyref>
-->
				</element>
			</sequence>
		</complexType>
		<key name="AdminUnitKey_Global">
			<selector xpath="AdminUnit"/>
			<field xpath="AdminUnitName"/>
		</key>
		<keyref name="AdminUnitRef_Global" refer="utour:AdminUnitKey_Global">
			<selector xpath="AdminUnit/SubAdminUnits"/>
			<field xpath="SubAdminUnitName"/>
		</keyref>
	</element>
</schema>

-- 
Markus Seibold
------------------------------
Krebsgasse 6
D-93047 Regensburg
Germany
------------------------------
Email: markus.seibold@gmx.net
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