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David Byrden <David@Byrden.com> writes:
> I'm using a substitution group of 2 element types. The head element
> and the alternative element are in different namespaces.
>
> In my XML document, I'm instantiating the alternative element
> where the schema mandates the head should go. If I import the
> 2nd namespace in the schema, everything works.
Which schema? Here's what I understand you to be describing:
s1.xsd:
<xs:schema targetNamespace="urn:s:1" xmlns:s1="urn:s:1">
<xs:complexType name="rootType">
<xs:sequence>
. . .
<xs:element ref="s1:head"/>
. . .
</xs:sequence>
</xs:complexType>
<xs:element name="head">...</xs:element>
</xs:schema>
s2.xsd:
<xs:schema targetNamespace="urn:s:2" xmlns:s1="urn:s:1">
<xs:import namespace="urn:s:1"/>
<xs:element name="alt" substitutionGroup="s1:head">...</xs:element>
</xs:schema>
instance:
<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:s1="urn:s:1" xmlns:s2="urn:s:2"
xsi:schemaLocation="urn:s:1 s1.xsd urn:s:2 s2.xsd"
xsi:type="s1:rootType">
<s2:alt>...</s2:alt>
</root>
> But why should I import the 2nd namespace in the schema
> if nothing in the schema refers to it? I want the dependencies to
> be one-way. I'd prefer to get this 2nd namespace with the
> schemaLocation attribute in the document, because the
> document DOES depend on it.
I'm not sure I'm answering your question, but the above is the minimum
necessary, and is schema-valid.
> But when I try to do so, the processor does not even read my
> 2nd namespace's schema as specified in schemaLocation. It
> reads the original schema and tells me I have invalid content.
> It seems as if the processor wants all schemas referenced
> by schemaLocation to be complete in and of themselves, ignoring
> possible inheritance across them. Maybe this is the correct behaviour,
> but I don't know.
>
> I'm using Java and JWSDP1.0_01
What processor is that? Please unpack the acronym.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2002, part-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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