org.apache.lucene.analysis.hi
Class HindiAnalyzer

java.lang.Object
  org.apache.lucene.analysis.Analyzer
      org.apache.lucene.analysis.util.StopwordAnalyzerBase
          org.apache.lucene.analysis.hi.HindiAnalyzer

All Implemented Interfaces:

Closeable

public final class HindiAnalyzer
extends StopwordAnalyzerBase

Analyzer for Hindi.

You must specify the required Version compatibility when creating HindiAnalyzer:

• As of 3.6, StandardTokenizer is used for tokenization

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer

Analyzer.GlobalReuseStrategy, Analyzer.PerFieldReuseStrategy, Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents

Field Summary

static String

DEFAULT_STOPWORD_FILE File containing default Hindi stopwords.

Fields inherited from class org.apache.lucene.analysis.util.StopwordAnalyzerBase

matchVersion, stopwords

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

GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY

Constructor Summary

HindiAnalyzer(Version version)
Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.

HindiAnalyzer(Version version, CharArraySet stopwords)
Builds an analyzer with the given stop words

HindiAnalyzer(Version version, CharArraySet stopwords, CharArraySet stemExclusionSet)
Builds an analyzer with the given stop words

Method Summary

protected Analyzer.TokenStreamComponents	createComponents(String fieldName, Reader reader) Creates Analyzer.TokenStreamComponents used to tokenize all the text in the provided Reader.
static CharArraySet	getDefaultStopSet() Returns an unmodifiable instance of the default stop-words set.

Methods inherited from class org.apache.lucene.analysis.util.StopwordAnalyzerBase

getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet

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

close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, initReader, tokenStream, tokenStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_STOPWORD_FILE

public static final String DEFAULT_STOPWORD_FILE

File containing default Hindi stopwords. Default stopword list is from http://members.unine.ch/jacques.savoy/clef/index.html The stopword list is BSD-Licensed.

See Also:

Constant Field Values

Constructor Detail

HindiAnalyzer

public HindiAnalyzer(Version version,
                     CharArraySet stopwords,
                     CharArraySet stemExclusionSet)

Builds an analyzer with the given stop words

Parameters:

version - lucene compatibility version

stopwords - a stopword set

stemExclusionSet - a stemming exclusion set

HindiAnalyzer

public HindiAnalyzer(Version version,
                     CharArraySet stopwords)

Builds an analyzer with the given stop words

Parameters:

version - lucene compatibility version

stopwords - a stopword set

HindiAnalyzer

public HindiAnalyzer(Version version)

Builds an analyzer with the default stop words: DEFAULT_STOPWORD_FILE.

Method Detail

getDefaultStopSet

public static CharArraySet getDefaultStopSet()

Returns an unmodifiable instance of the default stop-words set.

Returns:

an unmodifiable instance of the default stop-words set.

createComponents

protected Analyzer.TokenStreamComponents createComponents(String fieldName,
                                                          Reader reader)

Creates Analyzer.TokenStreamComponents used to tokenize all the text in the provided Reader.

Specified by:

createComponents in class Analyzer

Returns:

Analyzer.TokenStreamComponents built from a StandardTokenizer filtered with LowerCaseFilter, IndicNormalizationFilter, HindiNormalizationFilter, SetKeywordMarkerFilter if a stem exclusion set is provided, HindiStemFilter, and Hindi Stop words