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, 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.