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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject Re: Using Custom Analyzer to create case sensitive queries
Date Thu, 04 Aug 2005 17:25:36 GMT
Add some debugging to the if statement that handles "class.name" field.
 My first guess is that you're not getting in that if case when
querying.
If that turns out to be true, consider using PerFieldAnalyzerWrapper to
accomplish the same thing.

Otis

--- "Peter T. Brown" <peter@headlesshunter.com> wrote:

> I have a custom analyzer I've created so that certain fields, which
> are
> indexed as Keywords, can be search exactly as they are typed in.
> Using this
> custom analyzer however produces not hits. Using Luke, I can see that
> the
> field values are identical to the values passed in on the query...
> 
> My query is:
> class.name:(someCaseSensitiveString.that.Can.include.Periods)
> 
> 
> My custom Analyzer:
> 
>     public static class DefaultAnalyzer extends Analyzer {
>         public TokenStream tokenStream(String fieldName, Reader
> reader) {
>             LOG.debug("analyzing: " + fieldName);
> 
>             if ("class.name".equals(fieldName)) {
>                 LOG.debug("not analyzing");
>                 return new CharTokenizer(reader) {
>                     protected boolean isTokenChar(char c) {
>                         return true;
>                     }
>                 };
>             } else {
>                 LOG.debug("analyzing");
>                 StandardTokenizer tokenizer = new
> StandardTokenizer(reader);
>                 TokenStream result = null;
>                 result = new LowerCaseFilter(tokenizer);
>                 result = new StopFilter(result,
> StopAnalyzer.ENGLISH_STOP_WORDS);
>                 result = new PorterStemFilter(result);
>                 return result;
>             }
>         }
>     }
> 
> 
> 
> 
> Any ideas?
> 
> 
> Thank You
> 
> 
> 
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