This has been changed in Lucene 2.9, its nothing new in Lucene 4.0. Read the changes logs of Lucene 2.9/3.0, there is explained what you need to do.
Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: saisantoshi [mailto:saisantosh...@gmail.com] > Sent: Thursday, January 24, 2013 12:19 AM > To: java-user@lucene.apache.org > Subject: TopDocCollector vs TopScoreDocCollector (semantics changed in 4.0, > not backward comptabile) > > Our current search implementation (based on 2.4.0) uses a collector > extending the TopDocCollector class > > public class MyHitCollector extends TopDocsCollector { > > private IndexReader indexReader; > private CustomFilter customFilter; > > public MyHitCollector (IndexReader indexReader, int numberOfHits, > CustomFilter filter) { > * super(numberOfHits);* > this.indexReader = indexReader; > this.nodeFilter = filter(); > } > > *public void collect(int doc, float score) {* > try { > if (score > 0.0f) { > // do something > super.collect(doc, score); > } > } > } catch (Exception e) { > > } > } > > > //Using the collector > MyHitCollector collector; > IndexSearcher searcher= new IndexSearcher(reader); > try { > collector = new MyHitCollector(reader, maximumHits, > filter); > searcher.search(query, null, collector); > } finally { > > } > > TopDocs docs = collector.topDocs(); > > > Now in 4.0, the TopDocCollector is removed and the suggested class is to use > TopScoreDocCollector (for faster performance).. I don't see the following > signatures available in the newer class thus breaking the backward > compatibility. > > public collect(int doc, float score). //I think this is no longer there. > super(numberOfHits) . //The constructor for this is also been removed in > 4.0.. This used to be in 2.4 > > This looks to be me backward compatibility is broken and there is no proper > documentation as well. > > Could someone suggest any alternative here? Any collector that we can use > to be backward compatible? > > Thanks and appreciate your help. > > Thanks, > Sai. > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/TopDocCollector-vs- > TopScoreDocCollector-semantics-changed-in-4-0-not-backward-comptabile- > tp4035806.html > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > 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
