CompetitiveImpactAccumulator

java.lang.Object

org.apache.lucene.codecs.CompetitiveImpactAccumulator

public final class CompetitiveImpactAccumulator extends Object

This class accumulates the (freq, norm) pairs that may produce competitive scores.

Field Summary

Fields

Modifier and Type

Field

Description

private final int[]

maxFreqs

private final TreeSet<Impact>

otherFreqNormPairs
Constructor Summary

Constructors

Constructor

Description

CompetitiveImpactAccumulator()

Sole constructor.
Method Summary

Modifier and Type

Method

Description

void

add(int freq, long norm)

Accumulate a (freq,norm) pair, updating this structure if there is no equivalent or more competitive entry already.

private void

add(Impact newEntry, TreeSet<Impact> freqNormPairs)

void

addAll(CompetitiveImpactAccumulator acc)

Merge acc into this.

private boolean

assertConsistent()

void

clear()

Reset to the same state it was in after creation.

void

copy(CompetitiveImpactAccumulator acc)

Replace the content of this acc with the provided acc.

Collection<Impact>

getCompetitiveFreqNormPairs()

Get the set of competitive freq and norm pairs, ordered by increasing freq and norm.

String

toString()

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details
- maxFreqs
  
  private final int[] maxFreqs
- otherFreqNormPairs
  
  private final TreeSet<Impact> otherFreqNormPairs
Constructor Details
- CompetitiveImpactAccumulator
  
  public CompetitiveImpactAccumulator()
  
  Sole constructor.
Method Details
- clear
  
  public void clear()
  
  Reset to the same state it was in after creation.
- add
  
  public void add(int freq, long norm)
  
  Accumulate a (freq,norm) pair, updating this structure if there is no equivalent or more competitive entry already.
- addAll
  
  public void addAll(CompetitiveImpactAccumulator acc)
  
  Merge acc into this.
- copy
  
  public void copy(CompetitiveImpactAccumulator acc)
  
  Replace the content of this acc with the provided acc.
- getCompetitiveFreqNormPairs
  
  public Collection<Impact> getCompetitiveFreqNormPairs()
  
  Get the set of competitive freq and norm pairs, ordered by increasing freq and norm.
- add
  
  private void add(Impact newEntry, TreeSet<Impact> freqNormPairs)
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object
- assertConsistent
  
  private boolean assertConsistent()