org.apache.lucene.analysis.snowball
Class SnowballFilter
java.lang.Object
org.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.snowball.SnowballFilter
- All Implemented Interfaces:
- java.io.Closeable
public final class SnowballFilter
- extends TokenFilter
A filter that stems words using a Snowball-generated stemmer.
Available stemmers are listed in org.tartarus.snowball.ext
.
Method Summary |
boolean |
incrementToken()
Returns the next input Token, after being stemmed |
Methods inherited from class org.apache.lucene.util.AttributeSource |
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, restoreState, toString |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
SnowballFilter
public SnowballFilter(TokenStream input,
SnowballProgram stemmer)
SnowballFilter
public SnowballFilter(TokenStream in,
java.lang.String name)
- Construct the named stemming filter.
Available stemmers are listed in
org.tartarus.snowball.ext
.
The name of a stemmer is the part of the class name before "Stemmer",
e.g., the stemmer in EnglishStemmer
is named "English".
- Parameters:
in
- the input tokens to stemname
- the name of a stemmer
incrementToken
public final boolean incrementToken()
throws java.io.IOException
- Returns the next input Token, after being stemmed
- Specified by:
incrementToken
in class TokenStream
- Returns:
- false for end of stream; true otherwise
- Throws:
java.io.IOException
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