org.apache.flink.streaming.runtime.partitioner

Class HashPartitioner<T>

java.lang.Object

org.apache.flink.streaming.runtime.partitioner.StreamPartitioner<T>

org.apache.flink.streaming.runtime.partitioner.HashPartitioner<T>

Type Parameters:

T - Type of the elements in the Stream being partitioned

All Implemented Interfaces:

Serializable, ChannelSelector<SerializationDelegate<StreamRecord<T>>>

public class HashPartitioner<T>
extends StreamPartitioner<T>

Partitioner selects the target channel based on the hash value of a key from a KeySelector.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HashPartitioner(org.apache.flink.api.java.functions.KeySelector<T,?> keySelector)

Method Summary

Methods

Modifier and Type	Method and Description
StreamPartitioner<T>	copy()
int[]	selectChannels(SerializationDelegate<StreamRecord<T>> record, int numberOfOutputChannels)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

HashPartitioner

public HashPartitioner(org.apache.flink.api.java.functions.KeySelector<T,?> keySelector)

Method Detail

selectChannels

public int[] selectChannels(SerializationDelegate<StreamRecord<T>> record,
                   int numberOfOutputChannels)

copy

public StreamPartitioner<T> copy()

Specified by:

copy in class StreamPartitioner<T>

toString

public String toString()

Overrides:

toString in class Object