I think you'll have to write your own. Or just downcase the text yourself first.
-- Ian. On Tue, Feb 2, 2010 at 9:30 PM, java8964 java8964 <java8...@hotmail.com> wrote: > > Is there an analyzer like keyword analyzer, but will also lowering the data > from lucene? Or I have to do a customer analyzer by myself? > > Thanks > >> From: java8...@hotmail.com >> To: java-user@lucene.apache.org >> Subject: RE: During the wild card search, will lucene 2.9.0 to convert the >> search string to lower case? >> Date: Mon, 1 Feb 2010 14:24:00 -0500 >> >> >> This is maybe something I am looking for. We are using the default value, >> which is true. >> >> Let me examine this method more. >> >> Thanks for your help. >> >> > From: digyd...@gmail.com >> > To: java-user@lucene.apache.org >> > Subject: RE: During the wild card search, will lucene 2.9.0 to convert the >> > search string to lower case? >> > Date: Mon, 1 Feb 2010 20:36:29 +0200 >> > >> > Did you try queryParser.SetLowercaseExpandedTerms(false)? >> > >> > DIGY >> > >> > -----Original Message----- >> > From: java8964 java8964 [mailto:java8...@hotmail.com] >> > Sent: Monday, February 01, 2010 8:11 PM >> > To: java-user@lucene.apache.org >> > Subject: RE: During the wild card search, will lucene 2.9.0 to convert the >> > search string to lower case? >> > >> > >> > I would like to confirm your reply. You mean that the query parse will >> > lower >> > casing. In fact, it looks like that it only does this for wild card query, >> > right? >> > >> > For the term query, it didn't. As proved by if you change the line to: >> > >> > Query query = new QueryParser("title", >> > wrapper).parse("title:\"BBB CCC\""); >> > >> > You will get 1 hits back. So in this case, the query parser class did in >> > different way for term query and wild card query. >> > >> > We have to use the query parse in this case, but we have our own Query >> > parser class extends from the lucene query parser class. Anything we can do >> > to about it? >> > >> > Will lucense's query parser class be fixed for the above inconsistent >> > implementation? >> > >> > Thanks >> > >> > >> > > From: u...@thetaphi.de >> > > To: java-user@lucene.apache.org >> > > Subject: RE: During the wild card search, will lucene 2.9.0 to convert >> > > the >> > search string to lower case? >> > > Date: Mon, 1 Feb 2010 17:41:08 +0100 >> > > >> > > Only query parser does the lower casing. For such a special case, I would >> > suggest to use a PrefixQuery or WildcardQuery directly and not use query >> > parser. >> > > >> > > ----- >> > > Uwe Schindler >> > > H.-H.-Meier-Allee 63, D-28213 Bremen >> > > http://www.thetaphi.de >> > > eMail: u...@thetaphi.de >> > > >> > > > -----Original Message----- >> > > > From: java8964 java8964 [mailto:java8...@hotmail.com] >> > > > Sent: Monday, February 01, 2010 5:27 PM >> > > > To: java-user@lucene.apache.org >> > > > Subject: During the wild card search, will lucene 2.9.0 to convert the >> > > > search string to lower case? >> > > > >> > > > >> > > > I noticed a strange result from the following test case. For wildcard >> > > > search, my understanding is that lucene will NOT use any analyzer on >> > > > the query string. But as the following simple code to show, it looks >> > > > like that lucene will lower case the search query in the wildcard >> > > > search. Why? If not, why the following test case show the search hits >> > > > as one for lower case wildcard search, but not for the upper case data? >> > > > My original data is NOT analyzed, so they should be stored as the >> > > > original data in the index segment, right? >> > > > >> > > > Lucene version: 2.9.0 >> > > > >> > > > JDK version: JDK 1.6.0_17 >> > > > >> > > > >> > > > public class IndexTest1 { >> > > > public static void main(String[] args) { >> > > > try { >> > > > Directory directory = new RAMDirectory(); >> > > > IndexWriter writer = new IndexWriter(directory, new >> > > > StandardAnalyzer(Version.LUCENE_CURRENT), >> > > > IndexWriter.MaxFieldLength.UNLIMITED); >> > > > Document doc = new Document(); >> > > > doc.add(new Field("title", "BBB CCC", Field.Store.YES, >> > > > Field.Index.NOT_ANALYZED)); >> > > > writer.addDocument(doc); >> > > > doc = new Document(); >> > > > doc.add(new Field("title", "ddd eee", Field.Store.YES, >> > > > Field.Index.NOT_ANALYZED)); >> > > > writer.addDocument(doc); >> > > > >> > > > writer.close(); >> > > > >> > > > IndexSearcher searcher = new IndexSearcher(directory, >> > > > true); >> > > > PerFieldAnalyzerWrapper wrapper = new >> > > > PerFieldAnalyzerWrapper(new StandardAnalyzer(Version.LUCENE_CURRENT)); >> > > > wrapper.addAnalyzer("title", new KeywordAnalyzer()); >> > > > Query query = new QueryParser("title", >> > > > wrapper).parse("title:BBB*"); >> > > > System.out.println("hits of title = " + >> > > > searcher.search(query, 100).totalHits); >> > > > query = new QueryParser("title", >> > > > wrapper).parse("title:ddd*"); >> > > > System.out.println("hits of title = " + >> > > > searcher.search(query, 100).totalHits); >> > > > searcher.close(); >> > > > } catch (Exception e) { >> > > > System.out.println(e); >> > > > } >> > > > } >> > > > } >> > > > >> > > > The output: >> > > > hits of title = 0 >> > > > hits of title = 1 >> > > > >> > > > >> > > > _________________________________________________________________ >> > > > Hotmail: Trusted email with powerful SPAM protection. >> > > > http://clk.atdmt.com/GBL/go/201469227/direct/01/ >> > > >> > > >> > > --------------------------------------------------------------------- >> > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> > > For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > >> > >> > _________________________________________________________________ >> > Hotmail: Powerful Free email with security by Microsoft. >> > http://clk.atdmt.com/GBL/go/201469230/direct/01/ >> > >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> > For additional commands, e-mail: java-user-h...@lucene.apache.org >> > >> >> _________________________________________________________________ >> Hotmail: Trusted email with Microsoft’s powerful SPAM protection. >> http://clk.atdmt.com/GBL/go/201469226/direct/01/ > > _________________________________________________________________ > Hotmail: Powerful Free email with security by Microsoft. > http://clk.atdmt.com/GBL/go/201469230/direct/01/ --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
