Package org.apache.kafka.clients.producer

Interface Partitioner

All Superinterfaces:

AutoCloseable, Closeable, Configurable

All Known Implementing Classes:

RoundRobinPartitioner

public interface Partitioner
extends Configurable, Closeable

Partitioner Interface
Implement Monitorable to enable the partitioner to register metrics. The following tags are automatically added to all metrics registered: config set to partitioner.class, and class set to the Partitioner class name.

Method Summary

Modifier and Type	Method	Description
void	close()	This is called when partitioner is closed.
int	partition(String topic, Object key, byte[] keyBytes, Object value, byte[] valueBytes, Cluster cluster)	Compute the partition for the given record.

Methods inherited from interface org.apache.kafka.common.Configurable

configure

Method Details

partition

int partition(String topic,
 Object key,
 byte[] keyBytes,
 Object value,
 byte[] valueBytes,
 Cluster cluster)

Compute the partition for the given record.

Parameters:

topic - The topic name

key - The key to partition on (or null if no key)

keyBytes - The serialized key to partition on( or null if no key)

value - The value to partition on or null

valueBytes - The serialized value to partition on or null

cluster - The current cluster metadata

close

void close()

This is called when partitioner is closed.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable