CompetitiveImpactAccumulator (Lucene 9.0.0 core API)

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.

Constructor Summary

Constructors
Constructor Description

CompetitiveImpactAccumulator()
Sole constructor.

Method Summary

All Methods Instance Methods Concrete Methods
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.
`void`	`addAll(CompetitiveImpactAccumulator acc)`	Merge `acc` into this.
`void`	`clear()`	Reset to the same state it was in after creation.
`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

- Constructor Detail
  - CompetitiveImpactAccumulator
```
public CompetitiveImpactAccumulator()
```
    Sole constructor.
- Method Detail
  - 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.
  - getCompetitiveFreqNormPairs
```
public Collection<Impact> getCompetitiveFreqNormPairs()
```
    Get the set of competitive freq and norm pairs, ordered by increasing freq and norm.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object