IntGrouper (druid-processing 28.0.1 API)

All Superinterfaces:

AutoCloseable, Closeable, Grouper<IntKey>

All Known Implementing Classes:

BufferArrayGrouper
```
public interface IntGrouper
extends Grouper<IntKey>
```
Grouper specialized for the primitive int type

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface IntGrouper.IntGrouperHashFunction
- Nested classes/interfaces inherited from interface org.apache.druid.query.groupby.epinephelinae.Grouper
  Grouper.BufferComparator, Grouper.Entry<T>, Grouper.KeySerde<T>, Grouper.KeySerdeFactory<T>

Method Summary

All Methods Instance Methods Abstract Methods Default Methods Deprecated Methods
Modifier and Type	Method	Description
`default AggregateResult`	`aggregate(int key)`
`default AggregateResult`	`aggregate(IntKey key)`	Deprecated. Please use `aggregate(int)` instead.
`default AggregateResult`	`aggregate(IntKey key, int keyHash)`	Deprecated. Please use `aggregateKeyHash(int)` instead.
`AggregateResult`	`aggregateKeyHash(int keyHash)`
`IntGrouper.IntGrouperHashFunction`	`hashFunction()`

Methods inherited from interface org.apache.druid.query.groupby.epinephelinae.Grouper
close, init, isInitialized, iterator, reset

- Method Detail
  - aggregate
```
default AggregateResult aggregate(int key)
```
  - aggregateKeyHash
```
AggregateResult aggregateKeyHash(int keyHash)
```
  - aggregate
```
@Deprecated
default AggregateResult aggregate(IntKey key)
```
    Deprecated.
    Please use aggregate(int) instead.
    
    Aggregate the current row with the provided key. Some implementations are thread-safe and some are not.
    
    Specified by:
    
    aggregate in interface Grouper<IntKey>
    
    Parameters:
    
    key - key
    
    Returns:
    
    result that is ok if the row was aggregated, not ok if a resource limit was hit
  - aggregate
```
@Deprecated
default AggregateResult aggregate(IntKey key,
                                  int keyHash)
```
    Deprecated.
    Please use aggregateKeyHash(int) instead.
    
    Aggregate the current row with the provided key. Some implementations are thread-safe and some are not.
    
    Specified by:
    
    aggregate in interface Grouper<IntKey>
    
    Parameters:
    
    key - key object
    
    keyHash - result of Grouper.hashFunction() on the key
    
    Returns:
    
    result that is ok if the row was aggregated, not ok if a resource limit was hit
  - hashFunction
```
IntGrouper.IntGrouperHashFunction hashFunction()
```
    Specified by:
    
    hashFunction in interface Grouper<IntKey>