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From "Mike Baroukh" <mbaro...@cardiweb.com>
Subject Re: IndexReader/IndexSearcher
Date Wed, 19 Dec 2001 17:19:23 GMT

Thanks a lot. It's clear for me now !


----- Original Message -----
From: "Otis Gospodnetic" <otis_gospodnetic@yahoo.com>
To: "Lucene Users List" <lucene-user@jakarta.apache.org>
Sent: Wednesday, December 19, 2001 4:19 PM
Subject: Re: IndexReader/IndexSearcher


> Uh, I don't repeat myself, but I'll repeat others' words :)
>
> It is the analyzer (StandardAnalyzer, I believe) that lowercases text
> before indexing it.
> If you use the same analyzer to search it will lowercase text before
> performing a search, so you'll find the document with bo23 in it even
> if you use BO23 in the search.
>
> Otis
>
> --- Mike Baroukh <mbaroukh@cardiweb.com> wrote:
> > I reply to myself :
> >
> > It seem that when using IndexReader, keywords must be lower case.
> > So, I indexed BO23, I can search BO23 with IndexSearcher, but I must
> > use
> > bo23 to search with IndexReader.
> >
> > Am I right ?
> >
> > Mike
> >
> > ----- Original Message -----
> > From: "Mike Baroukh" <mbaroukh@cardiweb.com>
> > To: "Lucene Users List" <lucene-user@jakarta.apache.org>
> > Sent: Wednesday, December 19, 2001 12:57 PM
> > Subject: IndexReader/IndexSearcher
> >
> >
> > >
> > > Hi all.
> > >
> > > Can somebody tell me where is my error.
> > > There is something I don't understand.
> > >
> > > If I search something with
> > >
> > >     IndexReader indexReader = IndexReader.open("/myindex");
> > >     TermDocs docs = indexReader.termDocs(new Term("codman",
> > "BO23"));
> > >     while ( (docs!=null) && (docs.next()) ) {
> > >         nbis++;
> > >     }
> > >     if (docs!=null) docs.close();
> > >     indexReader.close();
> > >
> > > I see that nbis = 0 so temDocs returned nothing.
> > >
> > > But, If I use
> > >
> > >     SimpleAnalyzer analyzer = new SimpleAnalyzer();
> > >     IndexSearcher indexSearcher = new IndexSearcher("/myindex");
> > >     Query query = QueryParser.parse("BO23", "codman", analyzer);
> > >     Hits hits = indexSearcher.search(query);
> > >     nbis = hits.length();
> > >
> > > It's exactly the same query, the same index but this time, it
> > return 1
> > > document.
> > >
> > > I don't understand where this difference came from ?
> > > I know that the firs way is not the good way of searching but what
> > I wan't
> > > is to delete from the index the document returned wy the search #2.
> > >
> > > Thanks in advance for any help.
> > >
> > > Mike
> > >
> > >
> > >
> > > --
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>
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