Package org.apache.lucene.analysis.br
Class BrazilianAnalyzer
- java.lang.Object
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- org.apache.lucene.analysis.Analyzer
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- org.apache.lucene.analysis.StopwordAnalyzerBase
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- org.apache.lucene.analysis.br.BrazilianAnalyzer
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- All Implemented Interfaces:
Closeable,AutoCloseable
public final class BrazilianAnalyzer extends StopwordAnalyzerBase
Analyzerfor Brazilian Portuguese language.Supports an external list of stopwords (words that will not be indexed at all) and an external list of exclusions (words that will not be stemmed, but indexed).
NOTE: This class uses the same
Versiondependent settings asStandardAnalyzer.- Since:
- 3.1
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer
Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents
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Field Summary
Fields Modifier and Type Field Description static StringDEFAULT_STOPWORD_FILEFile containing default Brazilian Portuguese stopwords.-
Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
stopwords
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Fields inherited from class org.apache.lucene.analysis.Analyzer
GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY
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Constructor Summary
Constructors Constructor Description BrazilianAnalyzer()Builds an analyzer with the default stop words (getDefaultStopSet()).BrazilianAnalyzer(CharArraySet stopwords)Builds an analyzer with the given stop wordsBrazilianAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet)Builds an analyzer with the given stop words and stemming exclusion words
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected Analyzer.TokenStreamComponentscreateComponents(String fieldName)CreatesAnalyzer.TokenStreamComponentsused to tokenize all the text in the providedReader.static CharArraySetgetDefaultStopSet()Returns 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, loadStopwordSet, loadStopwordSet
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Methods inherited from class org.apache.lucene.analysis.Analyzer
attributeFactory, close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, initReader, initReaderForNormalization, normalize, tokenStream, tokenStream
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Field Detail
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DEFAULT_STOPWORD_FILE
public static final String DEFAULT_STOPWORD_FILE
File containing default Brazilian Portuguese stopwords.- See Also:
- Constant Field Values
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Constructor Detail
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BrazilianAnalyzer
public BrazilianAnalyzer()
Builds an analyzer with the default stop words (getDefaultStopSet()).
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BrazilianAnalyzer
public BrazilianAnalyzer(CharArraySet stopwords)
Builds an analyzer with the given stop words- Parameters:
stopwords- a stopword set
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BrazilianAnalyzer
public BrazilianAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet)
Builds an analyzer with the given stop words and stemming exclusion words- Parameters:
stopwords- a stopword set
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Method Detail
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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.
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createComponents
protected Analyzer.TokenStreamComponents createComponents(String fieldName)
CreatesAnalyzer.TokenStreamComponentsused to tokenize all the text in the providedReader.- Specified by:
createComponentsin classAnalyzer- Returns:
Analyzer.TokenStreamComponentsbuilt from aStandardTokenizerfiltered withLowerCaseFilter,StopFilter, andBrazilianStemFilter.
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normalize
protected TokenStream normalize(String fieldName, TokenStream in)
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