Thanks for the reply and suggestion. If I search for term A and term B with a BooleanQuery in Lucene, normally Lucene returns documents that have a match of both A and B. Now I am using payload to vary the scores w.r.t search of term A and search of term B, so it is possible for example a document has both match of term A and term B, but only the score for term A is 0. In this case, I want Lucene does not return this document at all. However the internal ConjunctionScorer will just sum up the scores returned by both subquery of A and B, thus the document has a score > 0 returned by the BooleanQuery, and therefore it cannot be filtered by a PositiveScoreOnlyCollector. I know hacking into ConjunctionScorer probably is too intrusive, but wondering if there is a better way to achieve the same effect ?
On Thu, Oct 22, 2015 at 4:13 AM, Uwe Schindler <u...@thetaphi.de> wrote: > Hi, > > Those are internal classes and not to be extended (not only the > constructor is pkg-private, the whole class is: https://goo.gl/5WyLYz)! > Scorers follow the delegator pattern. If you want to modify the behaviour > of a Scorer, create a delegator scorer (e.g. some Filtering Scorer) and > change its behaviour (e.g. filter additional documents,...). This can be > done by a query that filters other querys. E.g. look at ConstantScoreQuery > or similar queries that wrap other scorers. > > Subclassing ConjunctionScorer would bring you nothing because internals > are still private - and that's good. > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Sheng [mailto:sheng...@gmail.com] > > Sent: Wednesday, October 21, 2015 7:03 PM > > To: java-user@lucene.apache.org > > Subject: ConjunctionScorer access > > > > It's a bummer Lucene makes the constructor of ConjunctionScorer non- > > public. I wanted to extend from this class in order to tweak its > behavior for > > my use case. Is it possible to change it to protected in future releases > ? > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
