org.apache.pulsar.client.api

Interface MessageRouter

All Superinterfaces:

Serializable

public interface MessageRouter
extends Serializable

Interface for custom message router that can be passed to a producer to select the partition that a particular messsage should be published on.

See Also:

ProducerBuilder.messageRouter(MessageRouter)

Method Summary

Modifier and Type	Method and Description
default int	choosePartition(Message<?> msg) Deprecated. since 1.22.0. Please use choosePartition(Message, TopicMetadata) instead.
default int	choosePartition(Message<?> msg, TopicMetadata metadata) Choose a partition based on msg and the topic metadata.

Method Detail

choosePartition

@Deprecated
default int choosePartition(Message<?> msg)

Deprecated. since 1.22.0. Please use choosePartition(Message, TopicMetadata) instead.

Parameters:

msg - Message object

Returns:

The index of the partition to use for the message

choosePartition

default int choosePartition(Message<?> msg,
                            TopicMetadata metadata)

Choose a partition based on msg and the topic metadata.

Parameters:

msg - message to route

metadata - topic metadata

Returns:

the partition to route the message.

Since:

1.22.0