Hi, TopDocs tp = ms.search(lucquery, Integer.MAX_VALUE);
^^^This will crash and throw OutOfMemoryException The simpliest way ist: TopDocs tp = ms.search(lucquery, 1); And then the total count is in tp.totalHits -- simple. The above query will still count all hits, but return only 1. Adjust according to your needs (e.g. 10). ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: jm [mailto:jmugur...@gmail.com] > Sent: Tuesday, February 23, 2010 5:23 PM > To: java-user@lucene.apache.org > Subject: get the total number of hits of a query > > Hi, > > I need to find out how many hits a query will get, is this a valid > way? (Lucene 3.0) > > Query lucquery = ...; > IndexSearcher[] indexes = ... > MultiSearcher ms = new MultiSearcher(indexes); > TopDocs tp = ms.search(lucquery, Integer.MAX_VALUE); > int hits = tp.totalHits; > > Then depending on the number of hits I will run it again to get all > results or not. > > I have found some posts talking about something similar but I could > not see a clear answer... > > thanks > javi > > --------------------------------------------------------------------- > 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
