org.apache.lucene.analysis
Class MockGraphTokenFilter

java.lang.Object
  org.apache.lucene.util.AttributeSource
      org.apache.lucene.analysis.TokenStream
          org.apache.lucene.analysis.TokenFilter
              org.apache.lucene.analysis.LookaheadTokenFilter<LookaheadTokenFilter.Position>
                  org.apache.lucene.analysis.MockGraphTokenFilter

All Implemented Interfaces:

Closeable

public final class MockGraphTokenFilter
extends LookaheadTokenFilter<LookaheadTokenFilter.Position>

Randomly inserts overlapped (posInc=0) tokens with posLength sometimes > 1. The chain must have an OffsetAttribute.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.analysis.LookaheadTokenFilter

LookaheadTokenFilter.Position

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.LookaheadTokenFilter

end, inputPos, offsetAtt, outputPos, posIncAtt, positions, posLenAtt

Fields inherited from class org.apache.lucene.analysis.TokenFilter

input

Constructor Summary

MockGraphTokenFilter(Random random, TokenStream input)

Method Summary

protected void	afterPosition() This is called when all input tokens leaving a given position have been returned.
void	close()
boolean	incrementToken()
protected LookaheadTokenFilter.Position	newPosition()
void	reset()

Methods inherited from class org.apache.lucene.analysis.LookaheadTokenFilter

insertToken, nextToken, peekToken

Methods inherited from class org.apache.lucene.analysis.TokenFilter

end

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, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MockGraphTokenFilter

public MockGraphTokenFilter(Random random,
                            TokenStream input)

Method Detail

newPosition

protected LookaheadTokenFilter.Position newPosition()

Specified by:

newPosition in class LookaheadTokenFilter<LookaheadTokenFilter.Position>

afterPosition

protected void afterPosition()
                      throws IOException

Description copied from class: LookaheadTokenFilter

This is called when all input tokens leaving a given position have been returned. Override this and call insertToken and then set whichever token's attributes you want, if you want to inject a token starting from this position.

Overrides:

afterPosition in class LookaheadTokenFilter<LookaheadTokenFilter.Position>

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class LookaheadTokenFilter<LookaheadTokenFilter.Position>

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class TokenFilter

Throws:

IOException

incrementToken

public boolean incrementToken()
                       throws IOException

Specified by:

incrementToken in class TokenStream

Throws:

IOException