Package org.apache.lucene.analysis.br
Class BrazilianAnalyzer
java.lang.Object
org.apache.lucene.analysis.Analyzer
org.apache.lucene.analysis.StopwordAnalyzerBase
org.apache.lucene.analysis.br.BrazilianAnalyzer
- All Implemented Interfaces:
Closeable,AutoCloseable
Analyzer for 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 Version dependent
settings as StandardAnalyzer.
- Since:
- 3.1
-
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 Brazilian Portuguese 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 (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 -
Method Summary
Modifier and TypeMethodDescriptionprotected Analyzer.TokenStreamComponentscreateComponents(String fieldName) CreatesAnalyzer.TokenStreamComponentsused to tokenize 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
-
Field Details
-
DEFAULT_STOPWORD_FILE
File containing default Brazilian Portuguese stopwords.- See Also:
-
-
Constructor Details
-
BrazilianAnalyzer
public BrazilianAnalyzer()Builds an analyzer with the default stop words (getDefaultStopSet()). -
BrazilianAnalyzer
Builds an analyzer with the given stop words- Parameters:
stopwords- a stopword set
-
BrazilianAnalyzer
Builds an analyzer with the given stop words and stemming exclusion words- Parameters:
stopwords- a stopword set
-
-
Method Details
-
getDefaultStopSet
Returns an unmodifiable instance of the default stop-words set.- Returns:
- an unmodifiable instance of the default stop-words set.
-
createComponents
CreatesAnalyzer.TokenStreamComponentsused to tokenize all the text in the providedReader.- Specified by:
createComponentsin classAnalyzer- Returns:
Analyzer.TokenStreamComponentsbuilt from aStandardTokenizerfiltered withLowerCaseFilter,StopFilter, andBrazilianStemFilter.
-
normalize
-