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
