org.apache.lucene.analysis.de

Class GermanStemFilter

public final class GermanStemFilter extends TokenFilter

A filter that stems German 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 GermanStemmer).

Version: $Id: GermanStemFilter.java,v 1.8 2004/03/30 15:54:48 otis Exp $

Author: Gerhard Schwarz

Constructor Summary
GermanStemFilter(TokenStream in)
GermanStemFilter(TokenStream in, Hashtable exclusiontable)
Builds a GermanStemFilter that uses an exclusiontable.
GermanStemFilter(TokenStream in, Set exclusionSet)
Builds a GermanStemFilter that uses an exclusiontable.
Method Summary
Tokennext()
voidsetExclusionSet(Set exclusionSet)
Set an alternative exclusion list for this filter.
voidsetExclusionTable(Hashtable exclusiontable)
Set an alternative exclusion list for this filter.
voidsetStemmer(GermanStemmer stemmer)
Set a alternative/custom GermanStemmer for this filter.

Constructor Detail

GermanStemFilter

public GermanStemFilter(TokenStream in)

GermanStemFilter

public GermanStemFilter(TokenStream in, Hashtable exclusiontable)

Deprecated: Use {@link #GermanStemFilter(org.apache.lucene.analysis.TokenStream, java.util.Set)} instead.

Builds a GermanStemFilter that uses an exclusiontable.

GermanStemFilter

public GermanStemFilter(TokenStream in, Set exclusionSet)
Builds a GermanStemFilter that uses an exclusiontable.

Method Detail

next

public final Token next()

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

setExclusionSet

public void setExclusionSet(Set exclusionSet)
Set an alternative exclusion list for this filter.

setExclusionTable

public void setExclusionTable(Hashtable exclusiontable)

Deprecated: Use {@link #setExclusionSet(java.util.Set)} instead.

Set an alternative exclusion list for this filter.

setStemmer

public void setStemmer(GermanStemmer stemmer)
Set a alternative/custom GermanStemmer for this filter.
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