perfect, thanks guys On Tue, Feb 23, 2010 at 5:28 PM, Uwe Schindler <u...@thetaphi.de> wrote: > 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 > >
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