Class HunspellStemFilter

Lucene.Net.Analysis.TokenFilter that uses hunspell affix rules and words to stem tokens.
Since hunspell supports a word having multiple stems, this filter can emit multiple tokens for each consumed token

Note: This filter is aware of the Lucene.Net.Analysis.TokenAttributes.KeywordAttribute. To prevent certain terms from being passed to the stemmer IsKeyword should be set to true in a previous Lucene.Net.Analysis.TokenStream. Note: For including the original term as well as the stemmed version, see KeywordRepeatFilterFactory

Note

This API is experimental and might change in incompatible ways in the next release.

Inheritance
System.Object
Lucene.Net.Util.AttributeSource
Lucene.Net.Analysis.TokenStream
Lucene.Net.Analysis.TokenFilter
HunspellStemFilter
Implements
System.IDisposable
Inherited Members
Lucene.Net.Analysis.TokenFilter.m_input
Lucene.Net.Analysis.TokenFilter.End()
Lucene.Net.Analysis.TokenStream.Dispose()
Lucene.Net.Util.AttributeSource.GetAttributeFactory()
Lucene.Net.Util.AttributeSource.GetAttributeClassesEnumerator()
Lucene.Net.Util.AttributeSource.GetAttributeImplsEnumerator()
Lucene.Net.Util.AttributeSource.AddAttributeImpl(Lucene.Net.Util.Attribute)
Lucene.Net.Util.AttributeSource.AddAttribute<T>()
Lucene.Net.Util.AttributeSource.HasAttributes
Lucene.Net.Util.AttributeSource.HasAttribute<T>()
Lucene.Net.Util.AttributeSource.GetAttribute<T>()
Lucene.Net.Util.AttributeSource.ClearAttributes()
Lucene.Net.Util.AttributeSource.CaptureState()
Lucene.Net.Util.AttributeSource.RestoreState(Lucene.Net.Util.AttributeSource.State)
Lucene.Net.Util.AttributeSource.GetHashCode()
Lucene.Net.Util.AttributeSource.ReflectWith(Lucene.Net.Util.IAttributeReflector)
Lucene.Net.Util.AttributeSource.CloneAttributes()
Lucene.Net.Util.AttributeSource.CopyTo(Lucene.Net.Util.AttributeSource)
Lucene.Net.Util.AttributeSource.ToString()
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Lucene.Net.Analysis.Hunspell
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class HunspellStemFilter : TokenFilter, IDisposable

Constructors

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HunspellStemFilter(TokenStream, Dictionary)

Create a HunspellStemFilter outputting all possible stems.

Declaration
public HunspellStemFilter(TokenStream input, Dictionary dictionary)
Parameters
Type Name Description
Lucene.Net.Analysis.TokenStream input
Dictionary dictionary
See Also
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HunspellStemFilter(TokenStream, Dictionary, Boolean)

Create a HunspellStemFilter outputting all possible stems.

Declaration
public HunspellStemFilter(TokenStream input, Dictionary dictionary, bool dedup)
Parameters
Type Name Description
Lucene.Net.Analysis.TokenStream input
Dictionary dictionary
System.Boolean dedup
See Also
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HunspellStemFilter(TokenStream, Dictionary, Boolean, Boolean)

Creates a new HunspellStemFilter that will stem tokens from the given Lucene.Net.Analysis.TokenStream using affix rules in the provided Dictionary

Declaration
public HunspellStemFilter(TokenStream input, Dictionary dictionary, bool dedup, bool longestOnly)
Parameters
Type Name Description
Lucene.Net.Analysis.TokenStream input

Lucene.Net.Analysis.TokenStream whose tokens will be stemmed

Dictionary dictionary

Hunspell Dictionary containing the affix rules and words that will be used to stem the tokens

System.Boolean dedup

remove duplicates

System.Boolean longestOnly

true if only the longest term should be output.

Methods

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IncrementToken()

Declaration
public override bool IncrementToken()
Returns
Type Description
System.Boolean
Overrides
Lucene.Net.Analysis.TokenStream.IncrementToken()
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Reset()

Declaration
public override void Reset()
Overrides
Lucene.Net.Analysis.TokenFilter.Reset()

Implements

System.IDisposable