org.apache.lucene.analysis.nl
Class DutchStemFilter

java.lang.Object
  extended by org.apache.lucene.util.AttributeSource
      extended by org.apache.lucene.analysis.TokenStream
          extended by org.apache.lucene.analysis.TokenFilter
              extended by org.apache.lucene.analysis.nl.DutchStemFilter
All Implemented Interfaces:
Closeable

Deprecated. (3.1) Use SnowballFilter with DutchStemmer instead, which has the same functionality. This filter will be removed in Lucene 5.0

@Deprecated
public final class DutchStemFilter
extends TokenFilter

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.

See Also:
KeywordMarkerFilter

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.AttributeFactory, AttributeSource.State
 
Field Summary
 
Fields inherited from class org.apache.lucene.analysis.TokenFilter
input
 
Constructor Summary
DutchStemFilter(TokenStream _in)
          Deprecated.  
DutchStemFilter(TokenStream _in, Map<?,?> stemdictionary)
          Deprecated.  
 
Method Summary
 boolean incrementToken()
          Deprecated. Returns the next token in the stream, or null at EOS
 void setStemDictionary(HashMap<?,?> dict)
          Deprecated. Set dictionary for stemming, this dictionary overrules the algorithm, so you can correct for a particular unwanted word-stem pair.
 void setStemmer(DutchStemmer stemmer)
          Deprecated. Set a alternative/custom DutchStemmer for this filter.
 
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset
 
Methods inherited from class org.apache.lucene.util.AttributeSource
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DutchStemFilter

public DutchStemFilter(TokenStream _in)
Deprecated. 

DutchStemFilter

public DutchStemFilter(TokenStream _in,
                       Map<?,?> stemdictionary)
Deprecated. 
Parameters:
stemdictionary - Dictionary of word stem pairs, that overrule the algorithm
Method Detail

incrementToken

public boolean incrementToken()
                       throws IOException
Deprecated. 
Returns the next token in the stream, or null at EOS

Specified by:
incrementToken in class TokenStream
Throws:
IOException

setStemmer

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


setStemDictionary

public void setStemDictionary(HashMap<?,?> dict)
Deprecated. 
Set dictionary for stemming, this dictionary overrules the algorithm, so you can correct for a particular unwanted word-stem pair.



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