Package org.apache.lucene.analysis.nl
Class DutchStemFilter
- java.lang.Object
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- org.apache.lucene.util.AttributeSource
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- org.apache.lucene.analysis.TokenStream
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- org.apache.lucene.analysis.TokenFilter
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- org.apache.lucene.analysis.nl.DutchStemFilter
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- All Implemented Interfaces:
Closeable
,AutoCloseable
@Deprecated public final class DutchStemFilter extends TokenFilter
Deprecated.(3.1) UseSnowballFilter
withDutchStemmer
instead, which has the same functionality. This filter will be removed in Lucene 5.0ATokenFilter
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 customTokenFilter
that sets theKeywordAttribute
before thisTokenStream
.- See Also:
KeywordMarkerFilter
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.AttributeFactory, AttributeSource.State
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Constructor Summary
Constructors Constructor Description DutchStemFilter(TokenStream _in)
Deprecated.DutchStemFilter(TokenStream _in, Map<?,?> stemdictionary)
Deprecated.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description boolean
incrementToken()
Deprecated.Returns the next token in the stream, or null at EOSvoid
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/customDutchStemmer
for this filter.-
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset
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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, toString
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Constructor Detail
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DutchStemFilter
public DutchStemFilter(TokenStream _in)
Deprecated.
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DutchStemFilter
public DutchStemFilter(TokenStream _in, Map<?,?> stemdictionary)
Deprecated.- Parameters:
stemdictionary
- Dictionary of word stem pairs, that overrule the algorithm
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Method Detail
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incrementToken
public boolean incrementToken() throws IOException
Deprecated.Returns the next token in the stream, or null at EOS- Specified by:
incrementToken
in classTokenStream
- Returns:
- false for end of stream; true otherwise
- Throws:
IOException
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setStemmer
public void setStemmer(DutchStemmer stemmer)
Deprecated.Set a alternative/customDutchStemmer
for this filter.
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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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