Alternatively index your documents with term vectors for the field enabled:
http://lucene.apache.org/java/3_0_1/api/all/org/apache/lucene/document/Field.TermVector.html And then use IndexReader.getTermFreqVector() with the matching doc ID: http://lucene.apache.org/java/3_0_1/api/all/org/apache/lucene/index/IndexReader.html#getTermFreqVector(int, java.lang.String) Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Chris Hostetter [mailto:hossman_luc...@fucit.org] > Sent: Monday, April 05, 2010 8:24 PM > To: java-user@lucene.apache.org > Subject: Re: fastest way to gather simple terms that match documents? > > > : After I've run a query I need to know which terms matched each > : result document (ie doc termfrequency>0). > ... > : I don't care how many were found or what position or anything else. > : just which ones matched. > > if all you care about is simple "which terms does it have" you can take > your list of terms, and your list of docids, sort both lists and then > use > termDocs to loop over the terms and over the docs. (the sorting is key > for performance, because it allways you to alwasy skip forward, w/o > needing to restart the termDocs) > > something like... > > TermDocs iter = indexReader.termDocs(); > for (Term t : myTerms) { > iter.seek(t); > for (int docid : myDocs) { > if (iter.skipTo(docid) && (iter.doc() == docid)) { > doSomethingWith(t, docid); > } > } > } > > > > -Hoss > > > --------------------------------------------------------------------- > 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
