org.apache.lucene.analysis.util
Class ElisionFilter

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.util.ElisionFilter
All Implemented Interfaces:
Closeable

public final class ElisionFilter
extends TokenFilter

Removes elisions from a TokenStream. For example, "l'avion" (the plane) will be tokenized as "avion" (plane).

See Also:
Elision in Wikipedia

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
ElisionFilter(TokenStream input, CharArraySet articles)
          Constructs an elision filter with a Set of stop words
 
Method Summary
 boolean incrementToken()
          Increments the TokenStream with a CharTermAttribute without elisioned start
 
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

ElisionFilter

public ElisionFilter(TokenStream input,
                     CharArraySet articles)
Constructs an elision filter with a Set of stop words

Parameters:
input - the source TokenStream
articles - a set of stopword articles
Method Detail

incrementToken

public final boolean incrementToken()
                             throws IOException
Increments the TokenStream with a CharTermAttribute without elisioned start

Specified by:
incrementToken in class TokenStream
Throws:
IOException


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