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What about a SAX driver that spits out events by walking a DOM? If the DOM was created programatically, it doesn't really seem like an IOException is the right thing to throw. Ted ----- Original Message ----- From: David Megginson <david@m...> To: <xml-dev@i...> Sent: Thursday, December 23, 1999 4:04 AM Subject: Re: SAX2: Should SAXException extend IOException? > Ray Waldin <rwaldin@p...> writes: > > > from David's SAX2 Exceptions proposal: > > > 5. Have all callbacks that formerly threw SAXException throw > > > IOException instead. This should help to avoid a lot of exception > > > tunneling. > > > > I don't see the point in a Handler throwing an IOException to a > > Parser in most cases. That is what this item implies, right? What > > could a DocumentHandler mean by throwing an IOException during a > > call to startElement? The I/O has already occurred before the > > handler gets involved. > > Well, that's really domain-specific. It could be that a handler in an > XML I/O library does additional I/O (such as retrieving an external > bitmap) which, from the top-level application's point of view, is > still part of the same I/O process. > > In the end, though, this is a relatively minor point. The important > point, for me, is that SAXException extend IOException -- I think that > it would be convenient to have the callbacks throw IOException rather > than SAXException (otherwise, other IOExceptions will have to tunnel), > but it's not a show-stopper if everyone else thinks it's a bad idea. > > > All the best, > > > David > > -- > David Megginson david@m... > http://www.megginson.com/ > > xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... > Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 > To unsubscribe, mailto:majordomo@i... the following message; > unsubscribe xml-dev > To subscribe to the digests, mailto:majordomo@i... the following message; > subscribe xml-dev-digest > List coordinator, Henry Rzepa (mailto:rzepa@i...) > > xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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