How to write a Xalan extension function returning DocumentFragment

[Arjen Haayman <ah...@hotmail.com>]

Hello,

I'm trying to write a Xalan extension function in Java that should return a 
DocumentFragment.
So far however I've been unable to figure out how to construct a 
DocumentFragment.

The only way I've found is Document.createDocumentFragment(), but how do I 
get a document?

This is the best shot so far:

[snip]
public Object toSVG( ExpressionContext context)
{
                Object retval;

                try
                {
                      Node node = context.getContextNode();
                      Document doc = node.getOwnerDocument();
                      DocumentFragment fragment = 
doc.createDocumentFragment();
                 }
                catch( DOMException e)
                {
                        String error = Integer.toString( e.code);
                        Debug.Msg( 10, "error: " + error);
                        retval = error;
                }

                return( retval);
}

The result of this is that the createDocumentFragment throws a DOMException 
where e.code == 9.
I gather this means "Unimplemented".

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Re: How to write a Xalan extension function returning DocumentFragment

[Simon Kitching <si...@ecnetwork.co.nz>]

On Wed, 2004-03-03 at 22:00, Arjen Haayman wrote:
> Hello,
> 
> I'm trying to write a Xalan extension function in Java that should return a 
> DocumentFragment.
> So far however I've been unable to figure out how to construct a 
> DocumentFragment.
> 
> The only way I've found is Document.createDocumentFragment(), but how do I 
> get a document?

Any old document object will do; it doesn't need to be related to the
document object representing the input or output data.

So just use the normal mechanism for instantiating a Document object.
You can do this each time you need to create a new node, or (more
efficiently) store a Document object somewhere convenient (perhaps as a
singleton) for repeated use as a factory for objects.

Regards,

Simon