[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] [SAX2] DeclHandler vs. DTDHandler
DeclHandler is an SAX2 extension with the purpose of providing notification of DTD declaration events, that supplies the methods: attributeDecl(eName, aName, type, valueDefault, value) Report an attribute type declaration. elementDecl(name, model) Report an element type declaration. externalEntityDecl(name, publicId, systemId) Report a parsed external entity declaration. internalEntityDecl(name, value) Report an internal entity decla DTDHandler was part of SAX 1.0, with the purpose of providing notification of basic DTD-related events, that supplies the methods: notationDecl(name, publicId, systemId) Receive notification of a notation declaration event. unparsedEntityDecl(name, publicId, systemId, notationName) Receive notification of an unparsed entity declaration event. To my (naive) eye, they seem to be handling very similar sorts of events; if so it's certainly untidy ;-) and somewhat confusing to have such similar tasks split across two distinct classes. Now, backwards-compatibility with SAX 1.0 suggest that leaving DTDHandler "as is" is a Good Thing, but would the newer SAX2 class DeclHandler be better defined as an extension to DTDHandler, avoiding the need to inherit from both interfaces? Or, alternatively, deprecate DTDHandler in favour of DeclHandler, and have DeclHandler take over responsibility for handling all such events? Michael, who perhaps should have paid more attention during SAX2 alpha. *************************************************************************** This is xml-dev, the mailing list for XML developers. To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev List archives are available at http://xml.org/archives/xml-dev/threads.html ***************************************************************************
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