I had the same problem while migrating old code. Filter is very convenient to use, so why is it deprecated? I agree we should convert all internal filters to use this, but people from the outside, that just quickly want to create a Filter based on simple stuff like bitsets, should get an easy api without multi-pass stuff or the need to implement a full scorer returning 0 as score.
So I tend to rename the current filter class as BaseNonScoringQuery. In 5.x keep Filter deprecated (maybe simply as empty abstract subclass of this one). Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Trejkaz [mailto:trej...@trypticon.org] > Sent: Friday, January 15, 2016 1:52 AM > To: Lucene Users Mailing List <java-user@lucene.apache.org> > Subject: Fwd: Replacement for Filter-as-abstract-class in Lucene 5.4? > > Hi all. > > Filter is now deprecated, which I already knew was in the pipeline. > > The docs say: > > "Use Query objects instead: when queries are wrapped in a > ConstantScoreQuery or in a BooleanClause.Occur.FILTER clause, > they automatically disable the score computation so the Filter > class does not provide benefits compared to queries anymore." > > That's fair enough and an easy change to do on the caller side. > > The other thing we are using Filter for is the other thing it mentions > in the Javadoc: > > "Convenient base class for building queries that only perform > matching, but no scoring. The scorer produced by such queries > always returns 0 as score." > > What is the new convenient way to implement your own queries that > don't do scoring? > > TX > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
