SAX2: DeclHandler

David Megginson david at
Wed Dec 22 15:58:51 GMT 1999

David Brownell writes:
 > David Megginson wrote:
 > > 
 > > Here's the DeclHandler that we designed for SAX2alpha, with
 > > IOException replacing SAXException in the throws clauses:
 > I'm still not keen on having IOException there.
 > However, there are two other declarations that should show
 > up in a DeclHandler:
 > 	- The root element name.

You can get that from the LexicalHandler start/endDTD methods already.
Do you imagine validation modules will require DeclHandler but not

 > 	- Flag saying it it's standalone.

Slippery slope, domino effect, etc., but perhaps we do need an xmlDecl 
callback.  What do others think?

 > If those show up, then I think it'll be possible to use the
 > DeclHandler (and to-be-renamed DtdHandler) to provide a
 > cleanly layered XML validation module.  Else ...

All the best,


David Megginson                 david at

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