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Ron Bourret scripsit: > Currently, SetParser in ParserFilter accepts a single parser. I think this > should be a Stack of parsers. Each ParserFilter would set its own parser to the > top parser on the stack, pop that off, and pass the rest of the Stack to the > next level down. This would allow the application to build a stack of > ParserFilters, each performing a different operation. That was my intent in making ParserFilter a subinterface of Parser. Here's how an application can do what you want: Parser p; ParserFilter pf; p = new RealParser(); pf = new FooFilter(); pf.setParser(p); p = pf; pf = new BarFilter(); pf.setParser(p); p = pf; pf = new BazFilter(); pf.setParser(p); p = pf; ... If setParser returned "this" rather than void, then you could write the cascade in fewer lines: Parser p = new RealParser(); ParserFilter pf = new FooFilter().setParser(p); pf = new BarFilter().setParser(pf); pf = new BazFilter().setParser(pf); ... p = pf; I will probably make that change to setParser. -- John Cowan http://www.ccil.org/~cowan cowan@c... You tollerday donsk? N. You tolkatiff scowegian? Nn. You spigotty anglease? Nnn. You phonio saxo? Nnnn. Clear all so! 'Tis a Jute.... (Finnegans Wake 16.5) 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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