500 is the max size of text fragments to be returned by highlight. It shouldn't be the problem here, as far as I understand highlight.
Gong li, how is defined the field "contents" ? Is it the only field on which the search is made ? Pierre -----Message d'origine----- De : Ian Lea [mailto:ian....@gmail.com] Envoyé : mercredi 16 mars 2011 22:29 À : java-user@lucene.apache.org Objet : Re: About highlighter I know nothing about highlighting but that 500 looks like a good place to start investigating. -- Ian. On Tue, Mar 15, 2011 at 8:47 PM, Cescy <ee07b...@gmail.com> wrote: > Hi, > > > My highlight code is shown as following: > > > QueryScorer scorer = new QueryScorer(query); > Highlighter highlighter = new Highlighter(simpleHTMLFormatter, scorer); > highlighter.setTextFragmenter(new SimpleSpanFragmenter(scorer, 500)); > String contents = doc.get("contents"); > TokenStream tokenStream = > TokenSources.getAnyTokenStream(searcher.getIndexReader(), > topDocs.scoreDocs[i].doc, "contents", doc, analyzer); > String[] snippet = highlighter.getBestFragments(tokenStream, contents, 10); > > > > snippet is the result contexts and then I will print out them on the screen. > But If I may search for a keyword at the last few paragraph and the essay is > too long (1000-2000 words), it will return "document found" and > snippet.length=0 (i.e. document is found but context is NOT found). Why??? > > > How could I fix the problem? --------------------------------------------------------------------- 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
