org.apache.lucene.analysis.fr
Class FrenchStemFilter
java.lang.Object
org.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.fr.FrenchStemFilter
- All Implemented Interfaces:
- Closeable
public final class FrenchStemFilter
- extends org.apache.lucene.analysis.TokenFilter
A TokenFilter
that stems french words.
It supports a table of words that should
not be stemmed at all. The used stemmer can be changed at runtime after the
filter object is created (as long as it is a FrenchStemmer
).
NOTE: This stemmer does not implement the Snowball algorithm correctly,
especially involving case problems. It is recommended that you consider using
the "French" stemmer in the snowball package instead. This stemmer will likely
be deprecated in a future release.
Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource |
org.apache.lucene.util.AttributeSource.AttributeFactory, org.apache.lucene.util.AttributeSource.State |
Fields inherited from class org.apache.lucene.analysis.TokenFilter |
input |
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, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, restoreState, toString |
FrenchStemFilter
public FrenchStemFilter(org.apache.lucene.analysis.TokenStream in)
FrenchStemFilter
public FrenchStemFilter(org.apache.lucene.analysis.TokenStream in,
Set exclusiontable)
incrementToken
public boolean incrementToken()
throws IOException
- Specified by:
incrementToken
in class org.apache.lucene.analysis.TokenStream
- Returns:
- Returns true for the next token in the stream, or false at EOS
- Throws:
IOException
setStemmer
public void setStemmer(FrenchStemmer stemmer)
- Set a alternative/custom
FrenchStemmer
for this filter.
setExclusionTable
public void setExclusionTable(Map exclusiontable)
- Set an alternative exclusion list for this filter.
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