Ist inside TopDocs class as a getter method. ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de
> -----Original Message----- > From: Антон Кириллов [mailto:antonv.kiril...@gmail.com] > Sent: Tuesday, December 22, 2009 1:05 PM > To: java-user@lucene.apache.org > Subject: Re: Lucene' results paging > > Thanks for your answer. But how should I get the total nubmer of > search results in this case? > > On Mon, Dec 21, 2009 at 6:51 PM, Ian Lea <ian....@gmail.com> wrote: > > Hi > > > > > > The standard approach to paging is just to do the search again and > > pick out the docs you want, along the lines you outline. You cannot > > pass start/end info to any search methods. > > > > When you set max doc to, say, 10, lucene will find the 10 highest > > scoring docs and return them. There is no point in passing a number > > higher than you need. So if you are displaying 10 hits per page, call > > search(query, 10) for the first page, ..., 20 for the second and pick > > out the last 10, and so on. > > > > An alternative approach is for you to cache the search results > > yourself. That way you can avoid any subsequent searches. But that > > has it's own overhead and complexity, and most people most of the time > > don't get much past the first page. > > > > > > http://wiki.apache.org/lucene- > java/LuceneFAQ#How_do_I_implement_paging.2C_i.e._showing_result_from_1- > 10.2C_11-20_etc.3F > > > > -- > > Ian. > > > > > > On Mon, Dec 21, 2009 at 12:26 PM, Антон Кириллов > > <antonv.kiril...@gmail.com> wrote: > >> Hi, All! I have some problems with Lucene's search process and it's > >> results, so I hope You could help me. > >> > >> First one: how should I split results by pages? Now I get search > >> results in such way: > >> > >> TopDocs topDocs = is.search(finalQuery, 100000) //For example > >> > >> and after that I get the needed results in such way: > >> > >> //for example startPage = 20, endPage = 40 > >> for(int j=startPage; j<stopPage; j++){ > >> > >> doc[j-startPage] = is.doc(topDocs.scoreDocs[j].doc); > >> } > >> > >> I think this is a bad approach. How should I optimize my code to make > >> search faster? Is there any possibility to set start and stop pages in > >> search methods? > >> > >> The second one: > >> After the search is completed and the results are not sorted are all > >> the results stored in search engine? I mean when I set the max number > >> of docs in method search(finalQuery, 10) equal 10. would Lucene find > >> all relevant docs, then sort them by relevance and select first ten > >> after that? Or does Lucene store some specific information in indices > >> which allows select first 10 most relevant docs without sorting all > >> million (for example) relevant pages? > >> > >> Thanks in advance. > >> -- > >> Anton Kirillov > >> > >> --------------------------------------------------------------------- > >> 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 > > > > > > > > -- > С уважением, Кириллов Антон > > --------------------------------------------------------------------- > 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
