How to marshal XML fragments with JAXB

Question

Hello,
I have Object unashamed from XML. I would like to insert part of this object in another XML document. I�m using Cocoon Transformer for this. In startElement then I detect element which I would like replace I would like to write something like this:
Marshaller m = jc.createMarshaller();
m.marshal(myElem, contentHandler);
However this method try to marshal it as whole document with: <?xml version="1.0" encoding="UTF-8" ?> This probably case problems for next Transformer.
I have this problem in Cocoon and with SAX, but there should be some general solution to marshal JAXB objects as XML fragments, not whole documents. However I can�t found it.
Thanks for any help
Arek Stryjski

Answer 1

In JAXB mailing list I got this answer:
It currently doesn't have any explicit support for fragment marshalling,
but like you said, you can easily write an XMLFilter that blocks
start|endDocument. In your case, you just need to:
Marshaller m = jc.createMarshaller();
m.marshal(myElem, new FragmentFilter(contentHandler));
where FragmentFilter is:
class FragmentFilter extends XMLFilterImpl {
FragmentFilter( ContentHandler handler ) {
setContentHandler(handler);
public void startDocument() {}
public void endDocument() {}
Perhaps this could be another example.
regards,
Kohsuke KAWAGUCHI