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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: KStemFilter
Date Fri, 14 Jun 2013 17:51:27 GMT
Look at the javadocs of the analysis package and the Analyzer class, there it is explained
how Analyzers are built - the first example is the way to go:
http://lucene.apache.org/core/4_3_0/core/org/apache/lucene/analysis/Analyzer.html

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de


> -----Original Message-----
> From: Sirish Vadala [mailto:sirishreddy@gmail.com]
> Sent: Friday, June 14, 2013 7:31 PM
> To: java-user@lucene.apache.org
> Subject: KStemFilter
> 
> Hello All,
> 
> I have a new requirement within my text search implementation to perform
> stemming. I have done some research and implemented snowball, but
> however the customers found it too aggressive and eventually I got them to
> agree to compromise on k-stem algorithm.
> 
> Currently my existing code is on Lucene 2.9, which I would like to push to the
> latest Lucene 4.3. So finally I have decided to build a custom analyzer that
> implements kstem filter.
> 
> /    public class KStemAnalyzer extends Analyzer {
> 
>           @Override
>           public final TokenStream tokenStream(String fieldName, Reader
> reader) {
>                TokenStream result = new StandardTokenizer(Version.LUCENE_43,
> reader);
>                result = new StandardFilter(Version.LUCENE_43, result);
>                result = new LowerCaseFilter(Version.LUCENE_43, result);
>                result = new StopFilter(Version.LUCENE_43, result,
> StandardAnalyzer.STOP_WORDS_SET);
>                return new KStemFilter(result);
>           }
> 
>           @Override
>           protected TokenStreamComponents createComponents(String string,
> Reader reader) {
>               throw new UnsupportedOperationException("Not supported yet.");
>           }
>     }/
> 
> However I get an error /'tokenStream(String,Reader) in KStemAnalyzer
> cannot override tokenStream(String,Reader) in Analyzer overridden method
> is final'/. I was looking to find some documentation or example
> implementations, but all I could find is the api that is not very descriptive.
> 
> Any hint on how to initialize this would be highly appreciated.
> 
> Thanks.
> 
> 
> 
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/KStemFilter-tp4070558.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
> 
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