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RE: [xml-dev] what is the meaning of elementFormDefault="qualified" in a schema without a targetnamespace?

From: "Paul Spencer" <xml-dev-list@--------.--.-->
To: "bryan rasmussen" <rasmussen.bryan@-----.--->,"George Cristian Bina" <george@---------.--->
Date: 5/10/2007 10:58:00 AM
Or could it simply be that the tool used for development includes the
elementFormDefault="qualified" by default and it was just left in?

Paul

> -----Original Message-----
> From: bryan rasmussen [mailto:rasmussen.bryan@g...]
> Sent: 03 May 2007 14:27
> To: George Cristian Bina
> Cc: XML Developers List
> Subject: Re: [xml-dev] what is the meaning of
> elementFormDefault="qualified" in a schema without a targetnamespace?
>
>
> thanks, I keep falling afoul of this, I guess I've spent too long with
> Venetian blind and Salami slice schemas to consider any other design
> pattern.
>
> I swear I had the same problem looking at some schemas about this same
> time last year, and then totally blocked the solution out of my mind.
>
> Cheers,
> Bryan Rasmussen
>
> On 5/3/07, George Cristian Bina <george@o...> wrote:
> > Hi Bryan,
> >
> > The target namespace for that schema is absent. If you include the
> > schema from another one that has a target namespace then the components
> > from that schema will have that target namespace (I believe this is
> > called chameleon schema).
> > See an example below:
> >
> > test.xsd
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> > targetNamespace="http://example.com">
> >      <xs:include schemaLocation="common.xsd"/>
> > </xs:schema>
> >
> > common.xsd
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> > elementFormDefault="qualified">
> >      <xs:element name="test">
> >          <xs:complexType>
> >              <xs:sequence>
> >                  <xs:element name="a"/>
> >                  <xs:element name="b"/>
> >              </xs:sequence>
> >          </xs:complexType>
> >      </xs:element>
> > </xs:schema>
> >
> > The following instance is valid against test.xsd
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <test xmlns="http://example.com"
> >      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> >      xsi:schemaLocation="http://example.com test.xsd">
> >      <a></a>
> >      <b></b>
> > </test>
> >
> > Best Regards,
> > George
> > ---------------------------------------------------------------------
> > George Cristian Bina - http://aboutxml.blogspot.com/
> > <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
> > www.---.com
> >
> >
> > bryan rasmussen wrote:
> > > Hi,
> > > As per the subject line.
> > >
> > > I am looking over a rather big application with some XML schemas in
> > > which elementFormDefault is always given as qualified but there is no
> > > targetNamespace. This strikes me as weird because the implication is
> > > that one would have instances like this
> > >
> > > <t:test xmlns:t="" xsi:schemaLocation="myschema.xsd"
> > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
> > >
> > > which by my understanding would be very illegal.
> > >
> > > Cheers,
> > > Bryan Rasmussen
> > >
> > >
> _______________________________________________________________________
> > >
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> > >
> >
>
> _______________________________________________________________________
>
> XML-DEV is a publicly archived, unmoderated list hosted by OASIS
> to support XML implementation and development. To minimize
> spam in the archives, you must subscribe before posting.
>
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