org.apache.lucene.analysis.de
Class GermanStemFilter
java.lang.Object
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.de.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 564236 2007-08-09 15:21:19Z gsingers $
Method Summary |
Token |
next()
Returns the next token in the stream, or null at EOS. |
void |
setExclusionSet(Set exclusionSet)
Set an alternative exclusion list for this filter. |
void |
setStemmer(GermanStemmer stemmer)
Set a alternative/custom GermanStemmer for this filter. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GermanStemFilter
public GermanStemFilter(TokenStream in)
GermanStemFilter
public GermanStemFilter(TokenStream in,
Set exclusionSet)
- Builds a GermanStemFilter that uses an exclusiontable.
next
public final Token next()
throws IOException
- Description copied from class:
TokenStream
- Returns the next token in the stream, or null at EOS.
The returned Token is a "full private copy" (not
re-used across calls to next()) but will be slower
than calling
TokenStream.next(Token)
instead..
- Overrides:
next
in class TokenStream
- Returns:
- Returns the next token in the stream, or null at EOS
- Throws:
IOException
setStemmer
public void setStemmer(GermanStemmer stemmer)
- Set a alternative/custom GermanStemmer for this filter.
setExclusionSet
public void setExclusionSet(Set exclusionSet)
- Set an alternative exclusion list for this filter.
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