1. Please post new questions in a new thread. 2. Try a less specific search, maybe "lucene TREC".
-- Ian. On Sat, Dec 11, 2010 at 11:25 AM, Duy DINH <dinhba...@gmail.com> wrote: > Hi Lucene community, > This is not a novel question but I tried to search on Google the query: > > "how to index TREC collection with Lucene" > > I found nothing about that except some of your answers about the papers > using Lucene for indexing TREC collection, > and I think that I have to write code for indexing TREC collection. But > before doing that, I would like to know if you have done that, if so, could > you share or integrate this module into Lucene, please. > > Thank you very much, > Duy > > On Fri, Dec 10, 2010 at 7:04 PM, Tom Hill <solr-l...@worldware.com> wrote: > >> Hi Sariny, >> >> What Uwe was saying is that the definition for hashCode is found in >> the docs for Object, and it applies to all implementations of >> hashCode. >> >> It says: >> >> "It is not required that if two objects are unequal according to the >> equals(java.lang.Object) method, then calling the hashCode method on >> each of the two objects must produce distinct integer results. >> However, the programmer should be aware that producing distinct >> integer results for unequal objects may improve the performance of >> hashtables." >> >> The implementation of Maps, etc., understand this, and use it >> appropriately. So, if you write your own Map implementation, you may >> have to care about this, but in the general case, you can just use any >> Collection and it will work. >> >> Tom >> >> >> >> 2010/12/10 Sariny <sar...@gmail.com>: >> > Object.hashCode() is "implemented by converting the internal address of >> the object into an integer", >> > >> > Term.hashCode() has override the default implemention,so,this question >> has nothing todo with Object.hashCode(). >> > >> > I think I should try another way to cache filter results... >> > >> > >> > >> >>Hashcodes are not guaranteed to be different. See Object#hashCode() >> >>javadocs. >> >> >> >>----- >> >>Uwe Schindler >> >>H.-H.-Meier-Allee 63, D-28213 Bremen >> >>http://www.thetaphi.de >> >>eMail: u...@thetaphi.de >> >> >> >>> -----Original Message----- >> >>> From: Sariny [mailto:sar...@gmail.com] >> >>> Sent: Friday, December 10, 2010 3:34 PM >> >>> To: java-user >> >>> Subject: maybe I hit a bug of Term ? >> >>> >> >>> >> >>> Hi, two different Term get the same hashCode, lucene >> >>> version 3.0.2 >> >>> >> >>> System.out.println(new >> >>> Term("manu_id",NumericUtils.intToPrefixCoded(111)).hashCode()); >> >>> System.out.println(new >> >>> Term("manu_id",NumericUtils.intToPrefixCoded(402)).hashCode()); >> >>> >> >>> a bug? >> >>> >> >>> >> >>> --------------------------------------------------------------------- >> >>> 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 >> >> >> > >> > = = = = = = = = = = = = = = = = = = = = >> > >> > >> > Hashcodes are not guaranteed to be different. See Object#hashCode() >> > javadocs. >> > >> > ----- >> > Uwe Schindler >> > H.-H.-Meier-Allee 63, D-28213 Bremen >> > http://www.thetaphi.de >> > eMail: u...@thetaphi.de >> > >> >> -----Original Message----- >> >> From: Sariny [mailto:sar...@gmail.com] >> >> Sent: Friday, December 10, 2010 3:34 PM >> >> To: java-user >> >> Subject: maybe I hit a bug of Term ? >> >> >> >> >> >> Hi, two different Term get the same hashCode, lucene >> >> version 3.0.2 >> >> >> >> System.out.println(new >> >> Term("manu_id",NumericUtils.intToPrefixCoded(111)).hashCode()); >> >> System.out.println(new >> >> Term("manu_id",NumericUtils.intToPrefixCoded(402)).hashCode()); >> >> >> >> a bug? >> >> >> >> >> >> --------------------------------------------------------------------- >> >> 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 >> > >> > >> > --------------------------------------------------------------------- >> > 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 >> >> > > > -- > University: Paul Sabatier - Toulouse III > Laboratory: Institute for Research in Informatics of Toulouse > Office: (+33)5 61 55 74 40 > Mobile: (+33)6 37 500 222 > Email: dinhba...@gmail.com > Website: http://www.irit.fr/~Duy.Dinh/ > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
