Re: Generating XML with namespace?

Michael,

Sorry for the slow response.  As far as I can tell, it's not possible to 
generate the XML you show below using MarkupBuilder.  Here's my closest 
attempt:

---begin---

import groovy.xml.DOMBuilder;
import groovy.xml.Namespace;
import org.apache.xalan.serialize.SerializerToXML;

builder = DOMBuilder.newInstance();
namespace = new Namespace(builder, "http://www.example.com/mynamespace";, "my");

output = namespace.root(xmlns:["my":"http://www.example.com/mynamespace";]) {
    child();
}

printer = new SerializerToXML();
printer.init(System.out, null);
printer.serialize(output);

println "";

---end---

This prints out:

---begin---
<?xml version="1.0" encoding="UTF-8"?>
<my:root my="http://www.example.com/mynamespace";><my:child/></my:root>
---end---

I would have expected the 'xmlns' attribute of the root call to add what 
you wanted as an attribute, but it doesn't.  Not sure why not.  It also 
seems like the namespace builder puts all tags it generates into the 
namespace, so maybe there's a method like "widget()" in SwingBuilder that 
will let you add in an element outside of the namespace.

The best places to look are 
<http://cvs.groovy.codehaus.org/viewrep/groovy/groovy-core/src/main/groovy/xml> 
and 
<http://cvs.groovy.codehaus.org/groovy/groovy-core/src/test/groovy/xml/> 
for more leads.  It looks to me like 
<http://cvs.groovy.codehaus.org/viewrep/groovy/groovy-core/src/test/groovy/xml/NamespaceDOMTest.groovy?r=1.1>
 
would be the best file to examine.  I was trying to get your example to 
work without the XSD element, but maybe that's wrong-headed.

Sorry I couldn't help more.

Marc Hedlund 
e: marc at precipice dot org

On Thu, 14 Oct 2004, Michael Schuerig wrote:

> 
> I've seen the recent message regarding MarkupBuilders, still I don't 
> quite get it. I want to generate (textual) XML with a namespace. 
> Something like
> 
> <my:root xmlns:my="http://www.example.com/mynamespace";>
>   <child/>
>   ...
> </my:root>
> 
> 
> 
> I've had a look at <http://groovy.codehaus.org/GroovyMarkup> and 
> <http://wiki.codehaus.org/groovy/TreeBasedSyntax>, but they were more 
> confusing than helpful to me as they presuppose too much that I don't 
> yet understand.
> 
> Michael
> 
> -- 
> Michael Schuerig              The usual excuse for our most unspeakable
> mailto:michael-q5aiKMLteq4b1SvskN2V4Q@xxxxxxxxxxxxxxxx      public acts is 
> that they are necessary.
> http://www.schuerig.de/michael/                      --Judith N. Shklar
>