org.apache.lucene.analysis.nl
Class DutchStemFilter
java.lang.Object
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.nl.DutchStemFilter
public final class DutchStemFilter
- extends TokenFilter
A filter 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).
- Author:
- Edwin de Jonge
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DutchStemFilter
public DutchStemFilter(TokenStream _in)
DutchStemFilter
public DutchStemFilter(TokenStream _in,
Set exclusiontable)
- Builds a DutchStemFilter that uses an exclusiontable.
DutchStemFilter
public DutchStemFilter(TokenStream _in,
Set exclusiontable,
Map stemdictionary)
- Parameters:
stemdictionary
- Dictionary of word stem pairs, that overrule the algorithm
next
public Token next()
throws IOException
- Overrides:
next
in class TokenStream
- Returns:
- Returns the next token in the stream, or null at EOS
- Throws:
IOException
setStemmer
public void setStemmer(DutchStemmer stemmer)
- Set a alternative/custom DutchStemmer for this filter.
setExclusionTable
public void setExclusionTable(HashSet exclusiontable)
- Set an alternative exclusion list for this filter.
setStemDictionary
public void setStemDictionary(HashMap dict)
- Set dictionary for stemming, this dictionary overrules the algorithm,
so you can correct for a particular unwanted word-stem pair.
Copyright © 2000-2008 Apache Software Foundation. All Rights Reserved.