users@jaxb.java.net

Re: Suppress namespace declarations

From: Claus Nagel <claus.nagel_at_gmail.com>
Date: Wed, 24 Sep 2008 01:03:58 -0700 (PDT)

Since there is no answer so far, let me be more precise about my problem. I
have to deal with three xsd schemata: A, B, and C. Each schema is associated
with a different namespace. Both B and C <xs:import> schema A and extend
type definitions from A. Thus, A basically provides abstract type
definitions which are extended in B and C. JAXB perfectly maps all three
schemata to Java classes.

Valid XML instance documents may contain elements from B and C, but there
may also be valid instance documents just containing elements from B or C.

Now the problem (question): If I just instantiate classes from B and
marshall them to XML, then the JAXB marshaller also puts the namespace
declaration for schema C into my root element. However, since my instance
document does not contain elements from C I do not want that namespace to be
declared automatically. Is there any possibility to make the JAXB marshaller
suppress the namespace declaration for C?

I would appreciate a quick "yes" or "no" response because I urgently need
the answer in one of my projects. If, however, it is not possible, I would
like to put this onto my wish list for the upcoming JAXB version.

Regards,
Claus







Claus Nagel wrote:
>
> Hi all -
>
> Is there a possibility to customize the JAXB marshaller to suppress
> namespace declarations on the root element? Sometimes an instance document
> does not contain elements from a certain namespace so I do not want that
> namespace to be declared at the root element.
>
> Thanks,
> Claus
>
>
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