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

Interface KafkaCommitHandler

All Known Implementing Classes:

KafkaCheckpointCommit, KafkaIgnoreCommit, KafkaLatestCommit, KafkaThrottledLatestProcessedCommit

@Experimental("Experimental API")
public interface KafkaCommitHandler

Kafka commit handling strategy

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	KafkaCommitHandler.Factory	Factory interface for KafkaCommitHandler
static interface	KafkaCommitHandler.Strategy	Identifiers of default strategies

Method Summary

Modifier and Type	Method	Description
<K, V> io.smallrye.mutiny.Uni<Void>	handle(IncomingKafkaRecord<K,V> record)	Handle message acknowledgment
default void	partitionsAssigned(Collection<org.apache.kafka.common.TopicPartition> partitions)	Called on partitions assigned on Kafka rebalance listener
default void	partitionsRevoked(Collection<org.apache.kafka.common.TopicPartition> partitions)	Called on partitions revokd on Kafka rebalance listener
default <K, V> io.smallrye.mutiny.Uni<IncomingKafkaRecord<K,V>>	received(IncomingKafkaRecord<K,V> record)	Called on message received but before calling the processing function.
default void	terminate(boolean graceful)	Called on channel shutdown

Method Details

received

default <K,
V>
io.smallrye.mutiny.Uni<IncomingKafkaRecord<K,V>> received(IncomingKafkaRecord<K,V> record)

Called on message received but before calling the processing function. Returned Uni allows chaining asynchronous actions before message processing.

Type Parameters:

K - type of record key

V - type of record value

Parameters:

record - incoming Kafka record

Returns:

the Uni yielding the received record

terminate

default void terminate(boolean graceful)

Called on channel shutdown

Parameters:

graceful - true if it is a graceful shutdown

partitionsAssigned

default void partitionsAssigned(Collection<org.apache.kafka.common.TopicPartition> partitions)

Called on partitions assigned on Kafka rebalance listener

Parameters:

partitions - assigned partitions

partitionsRevoked

default void partitionsRevoked(Collection<org.apache.kafka.common.TopicPartition> partitions)

Called on partitions revokd on Kafka rebalance listener

Parameters:

partitions - revoked partitions

handle

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

Handle message acknowledgment

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.