Package org.apache.lucene.analysis.bg
Class BulgarianAnalyzer
java.lang.Object
org.apache.lucene.analysis.Analyzer
org.apache.lucene.analysis.StopwordAnalyzerBase
org.apache.lucene.analysis.bg.BulgarianAnalyzer
- All Implemented Interfaces:
Closeable,AutoCloseable
Analyzer for Bulgarian.
This analyzer implements light-stemming as specified by: Searching Strategies for the Bulgarian Language http://members.unine.ch/jacques.savoy/Papers/BUIR.pdf
- Since:
- 3.1
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer
Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents -
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final StringFile containing default Bulgarian stopwords.Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
stopwordsFields inherited from class org.apache.lucene.analysis.Analyzer
GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY -
Constructor Summary
ConstructorsConstructorDescriptionBuilds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE.BulgarianAnalyzer(CharArraySet stopwords) Builds an analyzer with the given stop words.BulgarianAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet) Builds an analyzer with the given stop words and a stem exclusion set. -
Method Summary
Modifier and TypeMethodDescriptioncreateComponents(String fieldName) Creates aAnalyzer.TokenStreamComponentswhich tokenizes all the text in the providedReader.static CharArraySetReturns an unmodifiable instance of the default stop-words set.protected TokenStreamnormalize(String fieldName, TokenStream in) Methods inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
getStopwordSet, loadStopwordSet, loadStopwordSetMethods inherited from class org.apache.lucene.analysis.Analyzer
attributeFactory, close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, initReader, initReaderForNormalization, normalize, tokenStream, tokenStream
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Field Details
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DEFAULT_STOPWORD_FILE
File containing default Bulgarian stopwords.Default stopword list is from http://members.unine.ch/jacques.savoy/clef/index.html The stopword list is BSD-Licensed.
- See Also:
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Constructor Details
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BulgarianAnalyzer
public BulgarianAnalyzer()Builds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE. -
BulgarianAnalyzer
Builds an analyzer with the given stop words. -
BulgarianAnalyzer
Builds an analyzer with the given stop words and a stem exclusion set. If a stem exclusion set is provided this analyzer will add aSetKeywordMarkerFilterbeforeBulgarianStemFilter.
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Method Details
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getDefaultStopSet
Returns an unmodifiable instance of the default stop-words set.- Returns:
- an unmodifiable instance of the default stop-words set.
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createComponents
Creates aAnalyzer.TokenStreamComponentswhich tokenizes all the text in the providedReader.- Specified by:
createComponentsin classAnalyzer- Returns:
- A
Analyzer.TokenStreamComponentsbuilt from anStandardTokenizerfiltered withLowerCaseFilter,StopFilter,SetKeywordMarkerFilterif a stem exclusion set is provided andBulgarianStemFilter.
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normalize
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