org.axonframework.kafka.eventhandling.consumer

Class KafkaEventMessage

java.lang.Object

org.axonframework.kafka.eventhandling.consumer.KafkaEventMessage

All Implemented Interfaces:

Comparable<KafkaEventMessage>, KafkaMetadataProvider<TrackedEventMessage<?>>

public class KafkaEventMessage
extends Object
implements KafkaMetadataProvider<TrackedEventMessage<?>>, Comparable<KafkaEventMessage>

Author:

Nakul Mishra.

Constructor Summary

Constructors

Constructor and Description
KafkaEventMessage(TrackedEventMessage<?> eventMessage, int partition, long offset, long timestamp)

Method Summary

Modifier and Type	Method and Description
int	compareTo(KafkaEventMessage other) Compares ConsumerRecord based on timestamp.
static KafkaEventMessage	from(EventMessage<?> eventMessage, org.apache.kafka.clients.consumer.ConsumerRecord<?,?> record, KafkaTrackingToken token)
long	offset() The position of record in the corresponding Kafka partition.
int	partition() The partition from which record is received
long	timestamp() The timestamp of record
String	toString()
TrackedEventMessage<?>	value() The value

Methods inherited from class java.lang.Object

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

Constructor Detail

KafkaEventMessage

public KafkaEventMessage(TrackedEventMessage<?> eventMessage,
                         int partition,
                         long offset,
                         long timestamp)

Method Detail

from

public static KafkaEventMessage from(EventMessage<?> eventMessage,
                                     org.apache.kafka.clients.consumer.ConsumerRecord<?,?> record,
                                     KafkaTrackingToken token)

partition

public int partition()

Description copied from interface: KafkaMetadataProvider

The partition from which record is received

Specified by:

partition in interface KafkaMetadataProvider<TrackedEventMessage<?>>

offset

public long offset()

Description copied from interface: KafkaMetadataProvider

The position of record in the corresponding Kafka partition.

Specified by:

offset in interface KafkaMetadataProvider<TrackedEventMessage<?>>

timestamp

public long timestamp()

Description copied from interface: KafkaMetadataProvider

The timestamp of record

Specified by:

timestamp in interface KafkaMetadataProvider<TrackedEventMessage<?>>

value

public TrackedEventMessage<?> value()

Description copied from interface: KafkaMetadataProvider

The value

Specified by:

value in interface KafkaMetadataProvider<TrackedEventMessage<?>>

compareTo

public int compareTo(KafkaEventMessage other)

Compares ConsumerRecord based on timestamp. If two records are published at the same time and belongs to:

• a). The same partition; than return the one with smaller offset.
• b). Different partitions; than return any.

Specified by:

compareTo in interface Comparable<KafkaEventMessage>

toString

public String toString()

Overrides:

toString in class Object