[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] SAX: do we want a base class (was Re: SAX: towards a solution)
David Ornstein writes: > >I am also assuming that we will provide not only a callback interface, > >but also an (optional) base class with stub methods that implementors > >can override as needed; that means that novice users will not have to > >implement all of SAX, even if we do end up with nine or ten methods. > > This worries me. My interest is in implementations of SAX-clients in C++. > Will I have, as part of somebody's SAX implementation that I'm using, this > (optional) base class available to me too? How about people working in > other languages (somebody mentioned tcl, for example)? I'd assume not. Thank you for your feedback. Right now, I am proposing SAX as two core interfaces (one for the parser and one for the user event handlers), together with an optional base class. Some OO languages do not support interfaces, in which case the interfaces themselves will have to be implemented as an abstract base classes. I'm afraid that I do not understand why would it be difficult to implement the XmlAppBase base class in, say, C++, Perl5, or iTcl as well as Java? I am certainly not depending on any Java-specific behaviour in it (there is no dynamic type checking or class loading). My goal is to design SAX to work in any OO language. All the best, David -- David Megginson ak117@f... Microstar Software Ltd. dmeggins@m... http://home.sprynet.com/sprynet/dmeggins/ 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/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe 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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