org.apache.lucene.analysis

Class StopAnalyzer


public final class StopAnalyzer
extends Analyzer

Filters LetterTokenizer with LowerCaseFilter and StopFilter.

Field Summary

static String[]
ENGLISH_STOP_WORDS
An array containing some common English words that are not usually useful for searching.

Constructor Summary

StopAnalyzer()
Builds an analyzer which removes words in ENGLISH_STOP_WORDS.
StopAnalyzer(File stopwordsFile)
Builds an analyzer with the stop words from the given file.
StopAnalyzer(Reader stopwords)
Builds an analyzer with the stop words from the given reader.
StopAnalyzer(Set stopWords)
Builds an analyzer with the stop words from the given set.
StopAnalyzer(String[] stopWords)
Builds an analyzer which removes words in the provided array.

Method Summary

TokenStream
tokenStream(String fieldName, Reader reader)
Filters LowerCaseTokenizer with StopFilter.

Methods inherited from class org.apache.lucene.analysis.Analyzer

getPositionIncrementGap, tokenStream

Field Details

ENGLISH_STOP_WORDS

public static final String[] ENGLISH_STOP_WORDS
An array containing some common English words that are not usually useful for searching.

Constructor Details

StopAnalyzer

public StopAnalyzer()
Builds an analyzer which removes words in ENGLISH_STOP_WORDS.

StopAnalyzer

public StopAnalyzer(File stopwordsFile)
            throws IOException
Builds an analyzer with the stop words from the given file.

StopAnalyzer

public StopAnalyzer(Reader stopwords)
            throws IOException
Builds an analyzer with the stop words from the given reader.

StopAnalyzer

public StopAnalyzer(Set stopWords)
Builds an analyzer with the stop words from the given set.

StopAnalyzer

public StopAnalyzer(String[] stopWords)
Builds an analyzer which removes words in the provided array.

Method Details

tokenStream

public TokenStream tokenStream(String fieldName,
                               Reader reader)
Filters LowerCaseTokenizer with StopFilter.
Overrides:
tokenStream in interface Analyzer

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