org.apache.flink.streaming.connectors.kafka.internals

Class KafkaTopicPartitionStateWithWatermarkGenerator<T,KPH>

java.lang.Object

org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionState<T,KPH>

org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionStateWithWatermarkGenerator<T,KPH>

Type Parameters:

T - The type of records handled by the watermark generator

KPH - The type of the Kafka partition descriptor, which varies across Kafka versions.

@Internal
public final class KafkaTopicPartitionStateWithWatermarkGenerator<T,KPH>
extends KafkaTopicPartitionState<T,KPH>

A special version of the per-kafka-partition-state that additionally holds a TimestampAssigner, WatermarkGenerator, an immediate WatermarkOutput, and a deferred WatermarkOutput for this partition.

See WatermarkOutputMultiplexer for an explanation of immediate and deferred WatermarkOutputs..

Constructor Summary

Constructors

Constructor and Description

KafkaTopicPartitionStateWithWatermarkGenerator(KafkaTopicPartition partition, KPH kafkaPartitionHandle, org.apache.flink.api.common.eventtime.TimestampAssigner<T> timestampAssigner, org.apache.flink.api.common.eventtime.WatermarkGenerator<T> watermarkGenerator, org.apache.flink.api.common.eventtime.WatermarkOutput immediateOutput, org.apache.flink.api.common.eventtime.WatermarkOutput deferredOutput)

Method Summary

Modifier and Type	Method and Description
long	extractTimestamp(T record, long kafkaEventTimestamp)
void	onEvent(T event, long timestamp)
void	onPeriodicEmit()
String	toString()

Methods inherited from class org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartitionState

getCommittedOffset, getKafkaPartitionHandle, getKafkaTopicPartition, getOffset, getPartition, getTopic, isOffsetDefined, setCommittedOffset, setOffset

Methods inherited from class java.lang.Object

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

Constructor Detail

KafkaTopicPartitionStateWithWatermarkGenerator

public KafkaTopicPartitionStateWithWatermarkGenerator(KafkaTopicPartition partition,
                                                      KPH kafkaPartitionHandle,
                                                      org.apache.flink.api.common.eventtime.TimestampAssigner<T> timestampAssigner,
                                                      org.apache.flink.api.common.eventtime.WatermarkGenerator<T> watermarkGenerator,
                                                      org.apache.flink.api.common.eventtime.WatermarkOutput immediateOutput,
                                                      org.apache.flink.api.common.eventtime.WatermarkOutput deferredOutput)

Method Detail

extractTimestamp

public long extractTimestamp(T record,
                             long kafkaEventTimestamp)

Overrides:

extractTimestamp in class KafkaTopicPartitionState<T,KPH>

onEvent

public void onEvent(T event,
                    long timestamp)

Overrides:

onEvent in class KafkaTopicPartitionState<T,KPH>

onPeriodicEmit

public void onPeriodicEmit()

Overrides:

onPeriodicEmit in class KafkaTopicPartitionState<T,KPH>

toString

public String toString()

Overrides:

toString in class KafkaTopicPartitionState<T,KPH>