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RE: RE: Quick, Easy Namespace Question
- To: "CHIUSANO, Joseph" <JCHIUSANO@l...>,<xml-dev@l...>
- Subject: RE: RE: Quick, Easy Namespace Question
- From: "Dare Obasanjo" <dareo@m...>
- Date: Mon, 5 Aug 2002 13:38:19 -0700
- Thread-index: AcI8vrqmYnmgaA8UQuOX+Q+cWtmGjQAADM0A
- Thread-topic: RE: Quick, Easy Namespace Question
Title: Message
elementFormDefault is what controls whether local elements belong to the
target namespace or not. This is orthogonal to whether they are locally or
globally declared elements. More information about this available in the
W3C XML Schema Primer at http://www.w3.org/TR/xmlschema-0/#QualLocals
PS:
Coincidentally this is close to the topic of the Extreme XML column I am writing
for this month. :)
-- PITHY WORDS OF WISDOM A man who can smile when
everything has gone wrong has probably thought of who he can blame it
on.
This posting is provided "AS IS" with no warranties, and
confers no rights.
Oh, I'm still a bit
confused (must be the extreme heat here in Washington DC!)....Since the second
declaration of "MyElement1" does not belong to the target namespace (or any
namespace for that matter), it cannot be namespace-qualified in the XML
instance document. Does this mean that in order to satisfy the
elementFormDefault of "qualified", I have to declare a second namespace in the
schema and assign the second declaration of "MyElement1" to that namespace
(then declare a prefix for it in the instance document and prefix the second
declaration of "MyElement1" accordingly)?
TIA,
Joe
Chiusano
LMI
**************************************************************************
Joseph M. Chiusano Logistics Management Institute 2000 Corporate Ridge McLean, VA 22102
Email: jchiusano@l... Tel:
571.633.7722 **************************************************************************
elementFormDefault set to qualified means ALL elements in your
instance document should be qualified. Qualification in this case means
"have a namespace name, specifically the target namespace" NOT "have a
prefix".
-- PITHY WORDS OF WISDOM A man who can smile when
everything has gone wrong has probably thought of who he can blame it
on.
This posting is provided "AS IS" with no warranties,
and confers no rights.
I thought I had all of this
namespace stuff down pat...then I tried something new.
I'm not sure if it's my
schema/XML document or the tool that's the problem.
Here's what I've done in the
schema:
(1) I have declared a target
namespace with a namespace prefix ("abc" for our purposes here)
(2) I have a global declaration
of an element "MyElement1", which is a complex type
(3) I also have a local
declaration of "MyElement1", because this second declaration has a
different set of subelements; in the local declaration, I have not
namespace-qualified the element name as it would clash with the global
declaration. This is the only local element in the
schema.
(4) I've set elementFormDefault
to "qualified"
I realized that I could not
have a default namespace in the XML instance document, because the XML
processor would consider both "MyELement1" elements as belonging to the
same target namespace, and an error would result due to the clash in
declarations. Therefore, in the XML instance document, I have
namespace-prefixed all elements _except the locally declared
"MyElement1"_.
The tool I am using doesn't
like this - is there something that I'm not seeing?
TIA, Joe Chiusano LMI
**************************************************************************
Joseph M.
Chiusano
Logistics Management Institute 2000 Corporate Ridge McLean, VA 22102
Email:
jchiusano@l... Tel: 571.633.7722 **************************************************************************
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