Declaring namespaces ONLY on root element during serialization

Question

I'm using JAXP 1.3 and I'd like to be able to serialize a document so that the namespace declarations are only specified once on the root element and not repeated throughout the document.
I'm working on a journal publication system and the request came from our users (i.e., editors) who say the repeated declarations are distracting when editing the XML. They are using an XML editor (Arbortext), but when they have the view set to display tags all the namespace declarations really clutters up the screen. In particular, we use the MathML namespace:
<m:math overflow="scroll" xmlns:m="http://www.w3.org/1998/Math/MathML">
Can this be done?
Thanks,
Jeff Bailey

Answer 1

It's just declared on on the root element on the input file.
I just tried what you suggested and it worked great. The mathml namespace is only declared on the root element in my output file now.
Odd that there's a difference between the two methods. For posterity, here's the code I used to serialize the XML:
TransformerFactory transformerFactory = TransformerFactory
.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING, "US-ASCII");
transformer.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC,
doc.getDoctype().getPublicId());
transformer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM,
doc.getDoctype().getSystemId());
OutputStream outputStream = new FileOutputStream(new File(
"C:\\temp\\foo.xml"));
transformer.transform(new DOMSource(doc),
new StreamResult(outputStream));
Thanks very much for your help.
Jeff