scorePayload should be called *if* there is a payload on the term you are searching for. If there is a payload on other terms you would not see it. So PayloadTermQuery only reports payloads on exactly the passed - in term (not on any other field or other term in the same field).
Additionally, the payload byte array is a generally a very large one (it shares many payloads), so your function to calculate the boost from the payload must respect the offset and length parameter! ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Christoph Hermann [mailto:herm...@informatik.uni-freiburg.de] > Sent: Saturday, October 16, 2010 4:55 PM > To: java-user@lucene.apache.org > Subject: scorePayload does not get called > > Hello, > > i'm trying to introduce an additional weighting using payloads. > > Therefore i implemented my own Similarity class (see below) and implemented > scorePayload(). > > My problem is, that scorePayload() is not called during search. > On the other Hand i overwrote the tf() method and that one gets called during > searching. > I am also using PayloadTermQuery, so that should make the scorePayload() > method get called. > > Anyone has an Idea what i'm doing wrong? > > --------- > IndexSearcher searcher = getIndexSearcher(dir); searcher.setSimilarity(new > MySimilarity()); Term t = new Term(TikaConstants.FIELD_CONTENT, > SEARCHTERM); Query q = new PayloadTermQuery(t, new > AveragePayloadFunction()); TopDocs docs = searcher.search(q, 15); > > --------- > public class MySimilarity extends DefaultSimilarity { > > @Override > public float tf(float freq) { > System.out.println("TF"); > return super.tf(freq); > } > > @Override > public float scorePayload(int docID, String fieldName, int start, > int end, byte[] payload, int > offset, > int length) { > System.out.println("Called!"); > if (payload != null) { > float boost = PayloadContainer.getBoost(payload); > System.out.println("Boosting: " + boost); > return boost; > } else { > return 1.0f; > } > } > } > --------- > > regards > Christoph Hermann > > -- > Christoph Hermann > Institut für Informatik > Tel: +49 761-203-8171 Fax: +49 761-203-8162 > e-mail: herm...@informatik.uni-freiburg.de > > --------------------------------------------------------------------- > 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
