Package org.apache.druid.query.groupby.epinephelinae

Interface IntGrouper

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

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 Details

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>