Package org.apache.lucene.analysis.bg
Class BulgarianAnalyzer
- java.lang.Object
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- org.apache.lucene.analysis.Analyzer
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- org.apache.lucene.analysis.ReusableAnalyzerBase
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- org.apache.lucene.analysis.StopwordAnalyzerBase
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- org.apache.lucene.analysis.bg.BulgarianAnalyzer
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- All Implemented Interfaces:
Closeable
,AutoCloseable
public final class BulgarianAnalyzer extends StopwordAnalyzerBase
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
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
ReusableAnalyzerBase.TokenStreamComponents
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Field Summary
Fields Modifier and Type Field Description static String
DEFAULT_STOPWORD_FILE
File containing default Bulgarian stopwords.static String
STOPWORDS_COMMENT
Deprecated.useWordlistLoader.getWordSet(Reader, String, Version)
directly-
Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
matchVersion, stopwords
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Constructor Summary
Constructors Constructor Description BulgarianAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE
.BulgarianAnalyzer(Version matchVersion, Set<?> stopwords)
Builds an analyzer with the given stop words.BulgarianAnalyzer(Version matchVersion, Set<?> stopwords, Set<?> stemExclusionSet)
Builds an analyzer with the given stop words and a stem exclusion set.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description ReusableAnalyzerBase.TokenStreamComponents
createComponents(String fieldName, Reader reader)
Creates aReusableAnalyzerBase.TokenStreamComponents
which tokenizes all the text in the providedReader
.static Set<?>
getDefaultStopSet()
Returns an unmodifiable instance of the default stop-words set.-
Methods inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet
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Methods inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
initReader, reusableTokenStream, tokenStream
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Methods inherited from class org.apache.lucene.analysis.Analyzer
close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setPreviousTokenStream
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Field Detail
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DEFAULT_STOPWORD_FILE
public static final String 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:
- Constant Field Values
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STOPWORDS_COMMENT
@Deprecated public static final String STOPWORDS_COMMENT
Deprecated.useWordlistLoader.getWordSet(Reader, String, Version)
directlyThe comment character in the stopwords file. All lines prefixed with this will be ignored- See Also:
- Constant Field Values
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Constructor Detail
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BulgarianAnalyzer
public BulgarianAnalyzer(Version matchVersion)
Builds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE
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BulgarianAnalyzer
public BulgarianAnalyzer(Version matchVersion, Set<?> stopwords)
Builds an analyzer with the given stop words.
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BulgarianAnalyzer
public BulgarianAnalyzer(Version matchVersion, Set<?> stopwords, Set<?> stemExclusionSet)
Builds an analyzer with the given stop words and a stem exclusion set. If a stem exclusion set is provided this analyzer will add aKeywordMarkerFilter
beforeBulgarianStemFilter
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Method Detail
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getDefaultStopSet
public static Set<?> 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
public ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName, Reader reader)
Creates aReusableAnalyzerBase.TokenStreamComponents
which tokenizes all the text in the providedReader
.- Specified by:
createComponents
in classReusableAnalyzerBase
- Parameters:
fieldName
- the name of the fields content passed to theReusableAnalyzerBase.TokenStreamComponents
sink as a readerreader
- the reader passed to theTokenizer
constructor- Returns:
- A
ReusableAnalyzerBase.TokenStreamComponents
built from anStandardTokenizer
filtered withStandardFilter
,LowerCaseFilter
,StopFilter
,KeywordMarkerFilter
if a stem exclusion set is provided andBulgarianStemFilter
.
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