[jdom-interest] Special XMLOutputter which omits namespaces?

[Guillaume Berche]

Hi Per,

Thanks for your suggestion. This seems a good idea, the only drawback to
this approach is that it may impact performance to traverse and modify the
tree, whereas working on the Outputter seems lighter.

Thanks for your answer anyway!

Guillaume.

> -----Original Message-----
> From: Per Norrman [mailto:pernorrman at telia.com]
> Sent: mardi 18 mai 2004 23:34
> To: Guillaume Berche
> Cc: jdom-interest at jdom.org
> Subject: Re: [jdom-interest] Special XMLOutputter which omits
> namespaces?
>
>
> Hi,
>
> why don't you just set the namespace for all
> elements to Namespace.NO_NAMESPACE before dumping.
> If you need to retain the original tree, you can
> always clone the subtree.
>
> Here's a snippet that removes all namespaces and
> namespace declarations:
>
> void removeNamespaces(Element element) {
>     element.setNamespace(null);
>     List tmp = new ArrayList(element.getAdditionalNamespaces());
>     for (Iterator i = tmp.iterator(); i.hasNext();) {
>        element.removeNamespaceDeclaration((Namespace)i.next());
>     }
>     for (Iterator i = element.getChildren().iterator(); i.hasNext();) {
>        removeNamespaces((Element)i.next());
>     }
> }
>
>
> /pmn
>
> Guillaume Berche wrote:
> > Hello,
> >
> > I've been pretty happy with JDom b8 except for the special need
> that I have
> > to output some XML fragment without including the namespace
> prefixes in each
> > element. The use-case for this is that I obtain a JDom tree from an XML
> > document using Xerces with schema validation on. I obtain a
> valid JDom tree
> > with the proper namespaces. I then want to dump a part of that
> tree without
> > specifying the namespace of each element.
> >
> > I had looked at various threads on this list a while ago and
> concluded the
> > best way for me to do this was to create a new "NoNameSpaceXMLOutputter"
> > based on the org.jdom.output.XMLOutputter and just modify the
> behavior of
> > the private     "void printNamespace(Namespace ns, Writer out,
> > NamespaceStack namespaces)" method, to have it return
> immediately, and not
> > insert namespaces element prefixes.
> >
> > I wonder whether as part of the beta 10, there is better way of
> using JDom
> > than duplicating the XMLOutputter code. I briefly looked at the new
> > org.jdom.output.Format class but could not find something
> corresponding to
> > my need.
> >
> > I realize this may be a specific need and may not justify
> extension in the
> > Format mechanism for the 1.0, but it may be interesting to support wider
> > subclassing of the org.jdom.output.XMLOutputter class by having
> some of its
> > methods now be exposed as "protected" instead of "private". So
> for the final
> > 1.0, I'd then advocate for the "void printNamespace(Namespace ns, Writer
> > out, NamespaceStack namespaces)" method, so my
> NoNameSpaceXMLOutputter class
> > would simply override this method instead of having to
> duplicate the whole
> > class.
> >
> > Thanks for your help and for this great library!
> >
> > Regards,
> >
> > Guillaume.
> >
> >
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