Fernando, Uwe thanks for your suggestions. Is it possible to get the number of "hits" per term? ferrari (125) lamborghini (34) ...
> -----Ursprüngliche Nachricht----- > Von: Fernando Wasylyszyn [mailto:ferw...@yahoo.com.ar] > Gesendet: Montag, 21. Februar 2011 21:11 > An: java-user@lucene.apache.org > Betreff: Re: Suggest search terms > > I think that the idea that Uwe mentions is completely valid. Although it has a > few disadvantages: > > For example, what if you want to suggest "multiword suggestions" and in > your index you have only "single word" tokens. > > Query: Ferrari > Ideal suggestions: Ferrari 354 BT, Ferrari 355 C, Ferrari 356 Index have the > tokens: Ferrari, 354, 355, 356, BT, C > > > > > > ________________________________ > De: Uwe Schindler <u...@thetaphi.de> > Para: java-user@lucene.apache.org > Enviado: lunes, 21 de febrero, 2011 15:29:35 > Asunto: RE: Suggest search terms > > Hi, > > I just have a suggestion to your first idea of enumerating terms, which is > very > fast if done right: > > > I'd like to suggest search terms to my users. My naïve approach would > > have > > been: > > After at least n characters have been typed (asynchronously) find > > terms in > > IndexReader.terms() which "match" > > Much easier is to use IR.terms() but wrap a PrefixTermEnum around it (it's in > search package). Then you simply iterate (please don't forget that the enum > is already positioned on the first term!!! If no such term exists, the enum's > term() returns null). Just use a "if (enum.term() != null) do { } while > (enum.next()!=null && numberOfTermCollectex <= max)", with Lucene > trunk this is much better now, but with 3.x, you have to use this ugly > iteration. > > Uwe > > > --------------------------------------------------------------------- > 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
