Class RussianAnalyzer

Analyzer for Russian language.

Supports an external list of stopwords (words that will not be indexed at all). A default set of stopwords is used unless an alternative list is specified.

You must specify the required LuceneVersion compatibility when creating RussianAnalyzer:

Inheritance
System.Object
Analyzer
StopwordAnalyzerBase
RussianAnalyzer
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Analysis.Ru
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class RussianAnalyzer : StopwordAnalyzerBase, IDisposable

Constructors

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RussianAnalyzer(LuceneVersion)

Declaration
public RussianAnalyzer(LuceneVersion matchVersion)
Parameters
Type Name Description
LuceneVersion matchVersion
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RussianAnalyzer(LuceneVersion, CharArraySet)

Builds an analyzer with the given stop words

Declaration
public RussianAnalyzer(LuceneVersion matchVersion, CharArraySet stopwords)
Parameters
Type Name Description
LuceneVersion matchVersion

lucene compatibility version

CharArraySet stopwords

a stopword set

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RussianAnalyzer(LuceneVersion, CharArraySet, CharArraySet)

Builds an analyzer with the given stop words

Declaration
public RussianAnalyzer(LuceneVersion matchVersion, CharArraySet stopwords, CharArraySet stemExclusionSet)
Parameters
Type Name Description
LuceneVersion matchVersion

lucene compatibility version

CharArraySet stopwords

a stopword set

CharArraySet stemExclusionSet

a set of words not to be stemmed

Fields

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DEFAULT_STOPWORD_FILE

File containing default Russian stopwords.

Declaration
public const string DEFAULT_STOPWORD_FILE = "russian_stop.txt"
Field Value
Type Description
System.String

Properties

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DefaultStopSet

Returns an unmodifiable instance of the default stop-words set.

Declaration
public static CharArraySet DefaultStopSet { get; }
Property Value
Type Description
CharArraySet

an unmodifiable instance of the default stop-words set.

Methods

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CreateComponents(String, TextReader)

Creates TokenStreamComponents used to tokenize all the text in the provided System.IO.TextReader.

Declaration
protected override TokenStreamComponents CreateComponents(string fieldName, TextReader reader)
Parameters
Type Name Description
System.String fieldName
System.IO.TextReader reader
Returns
Type Description
TokenStreamComponents TokenStreamComponents built from a StandardTokenizer filtered with StandardFilter, LowerCaseFilter, StopFilter , SetKeywordMarkerFilter if a stem exclusion set is provided, and SnowballFilter
Overrides

Implements

System.IDisposable