org.apache.flink.streaming.connectors.kafka.partitioner

Class KafkaPartitioner

java.lang.Object

org.apache.flink.streaming.connectors.kafka.partitioner.KafkaPartitioner

All Implemented Interfaces:

Serializable, kafka.producer.Partitioner

Direct Known Subclasses:

FixedPartitioner

public abstract class KafkaPartitioner
extends Object
implements kafka.producer.Partitioner, Serializable

Extended Kafka Partitioner. It contains a open() method which is called on each parallel instance. Partitioners have to be serializable!

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
KafkaPartitioner()

Method Summary

Modifier and Type	Method and Description
void	open(int parallelInstanceId, int parallelInstances, int[] partitions) Initializer for the Partitioner.

Methods inherited from class java.lang.Object

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

Methods inherited from interface kafka.producer.Partitioner

partition

Constructor Detail

KafkaPartitioner

public KafkaPartitioner()

Method Detail

open

public void open(int parallelInstanceId,
                 int parallelInstances,
                 int[] partitions)

Initializer for the Partitioner.

Parameters:

parallelInstanceId - 0-indexed id of the parallel instance in Flink

parallelInstances - the total number of parallel instances

partitions - an array describing the partition IDs of the available Kafka partitions.