Class DutchStemFilter

A TokenFilter that stems Dutch words.

It supports a table of words that should not be stemmed at all. The stemmer used can be changed at runtime after the filter object is created (as long as it is a DutchStemmer).

To prevent terms from being stemmed use an instance of KeywordMarkerFilter or a custom TokenFilter that sets the KeywordAttribute before this TokenStream.

Inheritance
System.Object
AttributeSource
TokenStream
TokenFilter
DutchStemFilter
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.Nl
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
[Obsolete("(3.1) Use Snowball.SnowballFilter with Tartarus.Snowball.Ext.DutchStemmer instead, which has the same functionality. This filter will be removed in Lucene 5.0")]
public sealed class DutchStemFilter : TokenFilter, IDisposable

Constructors

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DutchStemFilter(TokenStream)

Declaration
public DutchStemFilter(TokenStream in)
Parameters
Type Name Description
TokenStream in

Input TokenStream

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DutchStemFilter(TokenStream, IDictionary<String, String>)

Declaration
public DutchStemFilter(TokenStream in, IDictionary<string, string> stemdictionary)
Parameters
Type Name Description
TokenStream in

Input TokenStream

System.Collections.Generic.IDictionary<System.String, System.String> stemdictionary

Dictionary of word stem pairs, that overrule the algorithm

Properties

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StemDictionary

Set dictionary for stemming, this dictionary overrules the algorithm, so you can correct for a particular unwanted word-stem pair.

Declaration
public CharArrayMap<string> StemDictionary { get; set; }
Property Value
Type Description
CharArrayMap<System.String>
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Stemmer

Set a alternative/custom DutchStemmer for this filter.

Declaration
public DutchStemmer Stemmer { get; set; }
Property Value
Type Description
DutchStemmer

Methods

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IncrementToken()

Returns the next token in the stream, or null at EOS

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

Implements

System.IDisposable

See Also