Package org.apache.lucene.analysis.pl
Class PolishAnalyzer
- 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.pl.PolishAnalyzer
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- All Implemented Interfaces:
Closeable,AutoCloseable
public final class PolishAnalyzer extends StopwordAnalyzerBase
Analyzerfor Polish.- 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_STEMMER_FILEFile containing default Polish stemmer table.static StringDEFAULT_STOPWORD_FILEFile containing default Polish 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 PolishAnalyzer()Builds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE.PolishAnalyzer(CharArraySet stopwords)Builds an analyzer with the given stop words.PolishAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet)Builds an analyzer with the given stop 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)Creates aAnalyzer.TokenStreamComponentswhich tokenizes all the text in the providedReader.static CharArraySetgetDefaultStopSet()Returns an unmodifiable instance of the default stop words set.static TriegetDefaultTable()Returns an unmodifiable instance of the default stemmer table.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 Polish stopwords.- See Also:
- Constant Field Values
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DEFAULT_STEMMER_FILE
public static final String DEFAULT_STEMMER_FILE
File containing default Polish stemmer table.- See Also:
- Constant Field Values
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Constructor Detail
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PolishAnalyzer
public PolishAnalyzer()
Builds an analyzer with the default stop words:DEFAULT_STOPWORD_FILE.
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PolishAnalyzer
public PolishAnalyzer(CharArraySet stopwords)
Builds an analyzer with the given stop words.- Parameters:
stopwords- a stopword set
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PolishAnalyzer
public PolishAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet)
Builds an analyzer with the given stop words. If a non-empty stem exclusion set is provided this analyzer will add aSetKeywordMarkerFilterbefore stemming.- Parameters:
stopwords- a stopword setstemExclusionSet- a set of terms not to be stemmed
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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:
- default stop words set.
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getDefaultTable
public static Trie getDefaultTable()
Returns an unmodifiable instance of the default stemmer table.
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createComponents
protected Analyzer.TokenStreamComponents createComponents(String fieldName)
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 andStempelFilter.
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normalize
protected TokenStream normalize(String fieldName, TokenStream in)
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