Package org.apache.flink.table.runtime.operators.sort

Class RowTimeSortOperator

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<RowData>

org.apache.flink.table.runtime.operators.sort.RowTimeSortOperator

All Implemented Interfaces:

Serializable, CheckpointListener, Input<RowData>, KeyContext, KeyContextHandler, OneInputStreamOperator<RowData,RowData>, StreamOperator<RowData>, StreamOperatorStateHandler.CheckpointedStreamOperator, Triggerable<RowData,VoidNamespace>, YieldingOperator<RowData>

public class RowTimeSortOperator
extends AbstractStreamOperator<RowData>

Sort based on event-time and possibly additional secondary sort attributes.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected TimestampedCollector<RowData>	collector
protected TimerService	timerService

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

Constructor Summary

Constructors

Constructor	Description
RowTimeSortOperator(InternalTypeInfo<RowData> inputRowType, int rowTimeIdx, GeneratedRecordComparator gComparator)

Method Summary

Modifier and Type	Method	Description
void	onEventTime(InternalTimer<RowData,VoidNamespace> timer)	Invoked when an event-time timer fires.
void	onProcessingTime(InternalTimer<RowData,VoidNamespace> timer)	Invoked when a processing-time timer fires.
void	open()	This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processElement(StreamRecord<RowData> element)	Processes one element that arrived on this input of the MultipleInputStreamOperator.
boolean	useSplittableTimers()	Can be overridden to disable splittable timers for this particular operator even if config option is enabled.

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

close, finish, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, setup, snapshotState, snapshotState

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.Input

processLatencyMarker, processRecordAttributes, processWatermark, processWatermarkStatus

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

hasKeyContext

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Field Detail

timerService

protected transient TimerService timerService

collector

protected transient TimestampedCollector<RowData> collector

Constructor Detail

RowTimeSortOperator

public RowTimeSortOperator(InternalTypeInfo<RowData> inputRowType,
                           int rowTimeIdx,
                           GeneratedRecordComparator gComparator)

Parameters:

inputRowType - The data type of the input data.

rowTimeIdx - The index of the rowTime field.

gComparator - generated comparator, could be null if only sort on RowTime field

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<RowData>

Throws:

Exception - An exception in this method causes the operator to fail.

processElement

public void processElement(StreamRecord<RowData> element)
                    throws Exception

Description copied from interface: Input

Processes one element that arrived on this input of the MultipleInputStreamOperator. This method is guaranteed to not be called concurrently with other methods of the operator.

Throws:

Exception

onEventTime

public void onEventTime(InternalTimer<RowData,VoidNamespace> timer)
                 throws Exception

Description copied from interface: Triggerable

Invoked when an event-time timer fires.

Throws:

Exception

onProcessingTime

public void onProcessingTime(InternalTimer<RowData,VoidNamespace> timer)
                      throws Exception

Description copied from interface: Triggerable

Invoked when a processing-time timer fires.

Throws:

Exception

useSplittableTimers

public boolean useSplittableTimers()

Description copied from class: AbstractStreamOperator

Can be overridden to disable splittable timers for this particular operator even if config option is enabled. By default, splittable timers are disabled.

Overrides:

useSplittableTimers in class AbstractStreamOperator<RowData>

Returns:

true if splittable timers should be used (subject to StreamConfig.isUnalignedCheckpointsEnabled() and StreamConfig.isUnalignedCheckpointsSplittableTimersEnabled(). false if splittable timers should never be used.