XOM API for Processing XML with Java

[Fred Baube <fbaube AT saunalahti.fi>]

I'm trying to 
1) subclass nu.xom.Element with a class named my.MElm, and
2) ensure that the nu.xom.Document that XOM builds for me 
   uses my MElm's rather than nu.xom.Element's. 

According to the text at  http://www.xom.nu/tutorial.xhtml#d0e1424
("Factories, Filters, Subclassing, and Streaming"), I also have to 
subclass NodeFactory.  I do this, calling it my.MNodeFactory. 

So, in method my.MNodefactory.startMakingElement(String NS_URI, 
String name) , I return an instance of my.MElm.  

I verify downstream that XOM accepted this instance of the subclass, 
and I finish the element like so: 

        finishMakingElement(nu.xom.Element E) {
                assert (E instanceof my.Elm); // succeeds 
                return (super.finishMakingElement (E));
        }

 But when I obtain the Document that is created by XOM, I find that
the nodes in the document are instances of nu.xom.Element, not my.Elm. 

 Is there something else I need to do to ensure that the Document that 
is output by XOM is made of instances of my subclass rather than of
nu.xom.Element ?


thanks

fred

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F.Baube
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