Hi Pierre, Thanks for the pointer. So if I understand correctly this bug definitely applies to fields with TermVector.WITH_OFFSETS.
My field uses TermVector.WITH_POSITIONS_OFFSETS) I wasn't sure from the bug report if it applies to WITH_POSITIONS_OFFSETS as well? It looks like it might? - Joel On Fri, 2011-05-27 at 13:56 +0200, Pierre GOSSE wrote: > Hi, > > Maybe is it related to : > https://issues.apache.org/jira/browse/LUCENE-3087 > > Pierre > > -----Message d'origine----- > De : Joel Halbert [mailto:j...@su3analytics.com] > Envoyé : vendredi 27 mai 2011 12:57 > À : lucene users > Objet : FastVectorHighlighter.getBestFragments returning null > > Hi, > > I'm using Lucene 3.0.3. I'm extracting snippets using > FastVectorHighlighter, for some snippets (I think always when searching > for exact matches, quoted) the fragment is null. > > Code looks like: > > > query = QueryParser.escape(query); > if (exact) { > query = "\""+query+"\""; > } > BooleanQuery allQ = new BooleanQuery(); > Query bodyQ = new QueryParser(Version.LUCENE_30, BODY, > analyser).parse(query); > termQ.add(new BooleanClause(bodyQ, Occur.SHOULD)); > // add more queries > allQ.add(new BooleanClause(termQ, Occur.MUST)); > > TopDocs res = is.search(allQ, null, upperRange); > FastVectorHighlighter highlighter = new > FastVectorHighlighter(true, true); > > for (int i = in.getLowerRange(); i < > Math.min(res.totalHits, upperRange); i++) { > > String[] bodyFrags = > > highlighter.getBestFragments(highlighter.getFieldQuery(bodyQ), > is.getIndexReader(), > res.scoreDocs[i].doc, BODY, 120, 2); > > // bodyFrags is null > } > > > I do get a hit, and the content with the exact match is coming from the > BODY field, but I cann't seem to get the fragment out. > > Any clues, > > Thanks > > - Joel
