On Dec 27, 2005, at 2:34 PM, Dmitry Goldenberg wrote:
What do you mean by _rewriting_ the query? I checked all the
classes in the highlighter package and did not see any mention of
having to rewrite.
From Highlighter's package.html in it's javadocs:
<pre>
IndexSearcher searcher = new IndexSearcher(ramDir);
Query query = QueryParser.parse("Kenne*", FIELD_NAME, analyzer);
query = query.rewrite(reader); //required to expand search terms
Hits hits = searcher.search(query);
Highlighter highlighter = new Highlighter(this, new QueryScorer
(query));
for (int i = 0; i < hits.length(); i++)
{
String text = hits.doc(i).get(FIELD_NAME);
TokenStream tokenStream = analyzer.tokenStream(FIELD_NAME, new
StringReader(text));
// Get 3 best fragments and seperate with a "..."
String result = highlighter.getBestFragments(tokenStream, text, 3,
"...");
System.out.println(result);
}
</pre>
________________________________
From: Erik Hatcher [mailto:[EMAIL PROTECTED]
Sent: Tue 12/27/2005 11:03 AM
To: java-user@lucene.apache.org
Subject: Re: Wildcard and Fuzzy queries - no best fragments
generated - ??
You have to _rewrite_ the Query for this to work. This, I believe,
is mentioned in the javadocs.
I think you are hijacking a thread with your recent postings. Please
create a new message rather than reply to one and change the
subject. Thanks.
Erik
On Dec 27, 2005, at 1:55 PM, Dmitry Goldenberg wrote:
Hello,
While testing my code that integrates the Highlighter class from
org.apache.lucene.search.highlight, I found out that for wildcard
and fuzzy queries, it generates no best fragments.
Any particular reason why that is the case? Shouldn't the
highlighter be able to work just like with any other query and
highlight any matching token sequences? E.g. if I'm searching for
lava~, I'd expect it to highlight words like lava, java, etc. This
is the whole point of highlighting, is it not?
Thanks,
- Dmitry
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