Class StempelFilter

Transforms the token stream as per the stemming algorithm.

Note: the input to the stemming filter must already be in lower case, so you will need to use LowerCaseFilter or LowerCaseTokenizer farther down the Tokenizer chain in order for this to work properly!

Inheritance
System.Object
AttributeSource
TokenStream
TokenFilter
StempelFilter
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Lucene.Net.Analysis.Stempel
Assembly: Lucene.Net.Analysis.Stempel.dll
Syntax
public sealed class StempelFilter : TokenFilter, IDisposable

Constructors

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StempelFilter(TokenStream, StempelStemmer)

Create filter using the supplied stemming table.

Declaration
public StempelFilter(TokenStream in, StempelStemmer stemmer)
Parameters
Type Name Description
TokenStream in

input token stream
StempelStemmer stemmer

stemmer
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StempelFilter(TokenStream, StempelStemmer, Int32)

Create filter using the supplied stemming table.

Declaration
public StempelFilter(TokenStream in, StempelStemmer stemmer, int minLength)
Parameters
Type Name Description
TokenStream in

input token stream
StempelStemmer stemmer

stemmer
System.Int32 minLength

For performance reasons words shorter than minLength characters are not processed, but simply returned.

Fields

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DEFAULT_MIN_LENGTH

Minimum length of input words to be processed. Shorter words are returned unchanged.

Declaration
public static readonly int DEFAULT_MIN_LENGTH
Field Value
Type Description
System.Int32

Methods

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IncrementToken()

Returns the next input Token, after being stemmed

Declaration
public override bool IncrementToken()
Returns
Type Description
System.Boolean
Overrides

Implements

System.IDisposable