: FunctionQuery looks _exactly_ like what I want. I want to apply a rank/sort : kind of thing based on the value of a Document field value. Specifically, my : users want more "recent" documents to have a higher rank than older documents : and I have a date field with values like 20060707. It looks like I can do : what I want with a LinearFloatFunction :-)
pretty much ... but RecipricalFloatFunction is pretty great for dates too. : I'm using lucene's query parser to get a Query. How can I use : FunctionQuery in conjunction with my existing query? I'm gonna _try_ : Query.combine(Query[]), but I'm not sure, from reading the lucene docs, : that it will do what I want... that's not really what that method is for ... just construct a BooleanQuery and add your FunctionQuery and the query you got from the QUeryParser to it as sub-clauses. You'll probably want the clause from QUeryParser to be mandatory, and the FunctionQUery to be optional. -Hoss
