Michael Glavassevich wrote:
Hi Hansgerd,
XML Schema processors are not required to follow an import for a
namespace it's already seen and Xerces will not follow such imports by
default. You would need to enable the "honour-all-schemaLocations" [1]
feature to get the behaviour you want or add an include to "xsd3.xsd"
in "xsd1.xsd" (as you've already discovered). The latter solution
being the one I would go with if I were publishing my schema for
others to use with potentially any XML Schema processor (not just
Xerces or XMLSpy).
Even this latter solution doesn't seem to work with JDK5( but works with
JDK6). Is that correct ? The reason may be that JDK5 is using older
xerces version.
thanks,
Jitu
Thanks.
[1]
http://xerces.apache.org/xerces2-j/features.html#honour-all-schemaLocations
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrgla...@ca.ibm.com
E-mail: mrgla...@apache.org
Hansgerd Schneider <hansgerd.schnei...@gmx.de> wrote on 04/11/2010
01:53:06 PM:
> Hi
>
> I need some help with a problem that i ran into. I've created a simple
> example to demonstrate it.
>
> There are 3 xsd files with two different targetNamespaces nsA and
nsB. I
> pasted them at the end of this mail.
> The files use imports in the following way:
>
> xsd1(nsA) imports xsd2(nsB) imports xsd3(nsA)
>
> A complexType (Type3) is defined in xsd3.
> This is extended by a complexType (Type2) in xsd2.
> This is extended by a complexType (Type1) in xsd1.
>
> If i validate these files with XMLSpy, i get the message that these are
> all valid xml-schema files.
> I do believe that they are valid too, but...
>
> If i try to load xsd1 with SchemaFactory.getSchema(...) (Xerces 2.9.1)
> oder try to run xjc with it, i get the following error message:
> [ERROR] src-resolve: Cannot resolve the name 'a:Type3' to a(n) 'type
> definition' component.
> line 11 of file:/home/hansgerd/xml/examples/ex1/xsd2.xsd
>
> If i uncomment the xs:include of xsd3 in xsd1 everything works fine
with
> no error.
>
> I don't understand what's wrong with these xsd files and why XMLSpy
> comes to a different result than Xerces.
> Which one ist correct? XMLSpy oder Xerces?
>
> These are the contents of my xsd files.
>
> File: ./xsd1.xsd targetNamespace="nsA"
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:b="nsB" targetNamespace="nsA"
> elementFormDefault="qualified"
> attributeFormDefault="unqualified">
>
> <xs:import namespace="nsB" schemaLocation="xsd2.xsd"/>
> <!-- <xs:include schemaLocation="xsd3.xsd"/> -->
>
> <xs:complexType name="Type1">
> <xs:complexContent>
> <xs:extension base="b:Type2"/>
> </xs:complexContent>
> </xs:complexType>
>
> </xs:schema>
>
> File: ./xsd2.xsd targetNamespace="nsB"
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> targetNamespace="nsB"
> xmlns:a="nsA"
> elementFormDefault="qualified"
> attributeFormDefault="unqualified">
>
> <xs:import namespace="nsA" schemaLocation="xsd3.xsd"/>
>
> <xs:complexType name="Type2">
> <xs:complexContent>
> <xs:extension base="a:Type3"/>
> </xs:complexContent>
> </xs:complexType>
>
> </xs:schema>
>
> File: ./xsd3.xsd targetNamespace="nsA"
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
> targetNamespace="nsA"
> elementFormDefault="qualified"
> attributeFormDefault="unqualified">
>
> <xs:complexType name="Type3"/>
>
> </xs:schema>
>
> Thanks,
>
> Hansgerd Schneider
>
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