Package io.smallrye.reactive.messaging.kafka.commit

Class KafkaLatestCommit

java.lang.Object

io.smallrye.reactive.messaging.kafka.commit.ContextHolder

io.smallrye.reactive.messaging.kafka.commit.KafkaLatestCommit

All Implemented Interfaces:

KafkaCommitHandler

public class KafkaLatestCommit
extends ContextHolder
implements KafkaCommitHandler

Will commit the record offset received by the Kafka consumer (if higher than the previously committed offset). This offset may be greater than the currently ACKed message.

This handler is the default when `enable.auto.commit` is `false`. This strategy provides at-least-once delivery if the channel processes the message without performing any asynchronous processing.

This strategy should not be used on high-load as offset commit is expensive.

To use set `commit-strategy` to `latest`.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KafkaLatestCommit.Factory

Nested classes/interfaces inherited from interface io.smallrye.reactive.messaging.kafka.commit.KafkaCommitHandler

KafkaCommitHandler.Strategy

Field Summary

Fields inherited from class io.smallrye.reactive.messaging.kafka.commit.ContextHolder

context, vertx

Constructor Summary

Constructors

Constructor	Description
KafkaLatestCommit(io.vertx.mutiny.core.Vertx vertx, KafkaConnectorIncomingConfiguration configuration, KafkaConsumer<?,?> consumer)

Method Summary

Modifier and Type	Method	Description
<K, V> io.smallrye.mutiny.Uni<Void>	handle(IncomingKafkaRecord<K,V> record)	Handle message acknowledgment

Methods inherited from class io.smallrye.reactive.messaging.kafka.commit.ContextHolder

capture, capture, getContext, getTimeoutInMillis, runOnContext, runOnContextAndAwait

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.smallrye.reactive.messaging.kafka.commit.KafkaCommitHandler

partitionsAssigned, partitionsRevoked, received, terminate

Constructor Details

KafkaLatestCommit

public KafkaLatestCommit(io.vertx.mutiny.core.Vertx vertx,
 KafkaConnectorIncomingConfiguration configuration,
 KafkaConsumer<?,?> consumer)

Method Details

handle

public <K,
V> io.smallrye.mutiny.Uni<Void> handle(IncomingKafkaRecord<K,V> record)

Description copied from interface: KafkaCommitHandler

Handle message acknowledgment

Specified by:

handle in interface KafkaCommitHandler

Type Parameters:

K - type of record key

V - type of record value

Parameters:

record - incoming Kafka record

Returns:

a completion stage completed when the message is acknowledged.