org.apache.lucene.analysis.standard
Class StandardFilter

java.lang.Object
  org.apache.lucene.util.AttributeSource
      org.apache.lucene.analysis.TokenStream
          org.apache.lucene.analysis.TokenFilter
              org.apache.lucene.analysis.standard.StandardFilter

All Implemented Interfaces:

java.io.Closeable

public final class StandardFilter
extends TokenFilter

Normalizes tokens extracted with StandardTokenizer.

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

StandardFilter(TokenStream in)
Construct filtering in.

Method Summary

boolean

incrementToken() Returns the next token in the stream, or null at EOS.

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

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

StandardFilter

public StandardFilter(TokenStream in)

Construct filtering in.

Method Detail

incrementToken

public final boolean incrementToken()
                             throws java.io.IOException

Returns the next token in the stream, or null at EOS.

Removes 's from the end of words.

Removes dots from acronyms.

Specified by:

incrementToken in class TokenStream

Returns:

false for end of stream; true otherwise

Throws:

java.io.IOException