org.apache.lucene.analysis
Class MockGraphTokenFilter

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.LookaheadTokenFilter<LookaheadTokenFilter.Position>
                  extended by 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.
 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
close, 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
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, 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 createToken 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

incrementToken

public boolean incrementToken()
                       throws IOException
Specified by:
incrementToken in class TokenStream
Throws:
IOException


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