Package org.apache.lucene.analysis.uk

# Class UkrainianMorfologikAnalyzer

java.lang.Object
org.apache.lucene.analysis.Analyzer
org.apache.lucene.analysis.StopwordAnalyzerBase
org.apache.lucene.analysis.uk.UkrainianMorfologikAnalyzer

All Implemented Interfaces:
  `Closeable`, `AutoCloseable`

public final class UkrainianMorfologikAnalyzer extends StopwordAnalyzerBase
A dictionary-based `Analyzer` for Ukrainian.

Since:
  6.2.0

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer

  `Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents`

- ## Field Summary

  ### Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase

  `stopwords`

  ### Fields inherited from class org.apache.lucene.analysis.Analyzer

  `GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `UkrainianMorfologikAnalyzer()`
  Builds an analyzer with the default stop words.
  `UkrainianMorfologikAnalyzer(CharArraySet stopwords)`
  Builds an analyzer with the given stop words.
  `UkrainianMorfologikAnalyzer(CharArraySet stopwords, CharArraySet stemExclusionSet)`
  Builds an analyzer with the given stop words.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `protected Analyzer.TokenStreamComponents`
  `createComponents(String fieldName)`
  Creates a `Analyzer.TokenStreamComponents` which tokenizes all the text in the provided `Reader`.
  `static CharArraySet`
  `getDefaultStopwords()`
  Returns the default stopword set for this analyzer
  `protected Reader`
  `initReader(String fieldName, Reader reader)`

  ### Methods inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase

  `getStopwordSet, loadStopwordSet, loadStopwordSet`

  ### Methods inherited from class org.apache.lucene.analysis.Analyzer

  `attributeFactory, close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, initReaderForNormalization, normalize, normalize, tokenStream, tokenStream`

  ### Methods inherited from class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### UkrainianMorfologikAnalyzer

    public UkrainianMorfologikAnalyzer()
    Builds an analyzer with the default stop words.

  - ### UkrainianMorfologikAnalyzer

    public UkrainianMorfologikAnalyzer(CharArraySet stopwords)
    Builds an analyzer with the given stop words.
    Parameters:
      `stopwords` - a stopword set

  - ### UkrainianMorfologikAnalyzer

    public UkrainianMorfologikAnalyzer(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 a `SetKeywordMarkerFilter` before stemming.
    Parameters:
      `stopwords` - a stopword set
      `stemExclusionSet` - a set of terms not to be stemmed

- ## Method Details

  - ### getDefaultStopwords

    public static CharArraySet getDefaultStopwords()
    Returns the default stopword set for this analyzer

  - ### initReader

    protected Reader initReader(String fieldName, Reader reader)
    Overrides:
      `initReader` in class `Analyzer`

  - ### createComponents

    protected Analyzer.TokenStreamComponents createComponents(String fieldName)
    Creates a `Analyzer.TokenStreamComponents` which tokenizes all the text in the provided `Reader`.
    Specified by:
      `createComponents` in class `Analyzer`
    Returns:
      A `Analyzer.TokenStreamComponents` built from an `StandardTokenizer` filtered with `LowerCaseFilter`, `StopFilter` , `SetKeywordMarkerFilter` if a stem exclusion set is provided and `MorfologikFilter` on the Ukrainian dictionary.