org.apache.flink.table.runtime.operators.join.temporal

Class TemporalProcessTimeJoinOperator

java.lang.Object

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

org.apache.flink.table.runtime.operators.join.temporal.BaseTwoInputStreamOperatorWithStateRetention

org.apache.flink.table.runtime.operators.join.temporal.TemporalProcessTimeJoinOperator

All Implemented Interfaces:

Serializable, CheckpointListener, KeyContext, SetupableStreamOperator<RowData>, StreamOperator<RowData>, StreamOperatorStateHandler.CheckpointedStreamOperator, Triggerable<Object,VoidNamespace>, TwoInputStreamOperator<RowData,RowData,RowData>, Disposable

public class TemporalProcessTimeJoinOperator
extends BaseTwoInputStreamOperatorWithStateRetention

The operator to temporal join a stream on processing time.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.join.temporal.BaseTwoInputStreamOperatorWithStateRetention

stateCleaningEnabled

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

chainingStrategy, config, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor and Description
TemporalProcessTimeJoinOperator(RowDataTypeInfo rightType, GeneratedJoinCondition generatedJoinCondition, long minRetentionTime, long maxRetentionTime)

Method Summary

Modifier and Type	Method and Description
void	cleanupState(long time) The method to be called when a cleanup timer fires.
void	close() This method is called after all records have been added to the operators via the methods OneInputStreamOperator.processElement(StreamRecord), or TwoInputStreamOperator.processElement1(StreamRecord) and TwoInputStreamOperator.processElement2(StreamRecord).
void	onEventTime(InternalTimer<Object,VoidNamespace> timer) Invoked when an event-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.
void	processElement1(StreamRecord<RowData> element) Processes one element that arrived on the first input of this two-input operator.
void	processElement2(StreamRecord<RowData> element) Processes one element that arrived on the second input of this two-input operator.

Methods inherited from class org.apache.flink.table.runtime.operators.join.temporal.BaseTwoInputStreamOperatorWithStateRetention

cleanupLastTimer, onProcessingTime, registerProcessingCleanupTimer

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

dispose, getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, numEventTimeTimers, numProcessingTimeTimers, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, 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.streaming.api.operators.TwoInputStreamOperator

processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2

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

dispose, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Methods inherited from interface org.apache.flink.runtime.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

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

getCurrentKey, setCurrentKey

Constructor Detail

TemporalProcessTimeJoinOperator

public TemporalProcessTimeJoinOperator(RowDataTypeInfo rightType,
                                       GeneratedJoinCondition generatedJoinCondition,
                                       long minRetentionTime,
                                       long maxRetentionTime)

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>

Overrides:

open in class BaseTwoInputStreamOperatorWithStateRetention

Throws:

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

processElement1

public void processElement1(StreamRecord<RowData> element)
                     throws Exception

Description copied from interface: TwoInputStreamOperator

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

Throws:

Exception

processElement2

public void processElement2(StreamRecord<RowData> element)
                     throws Exception

Description copied from interface: TwoInputStreamOperator

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

Throws:

Exception

close

public void close()
           throws Exception

Description copied from class: AbstractStreamOperator

This method is called after all records have been added to the operators via the methods OneInputStreamOperator.processElement(StreamRecord), or TwoInputStreamOperator.processElement1(StreamRecord) and TwoInputStreamOperator.processElement2(StreamRecord).

The method is expected to flush all remaining buffered data. Exceptions during this flushing of buffered should be propagated, in order to cause the operation to be recognized asa failed, because the last data items are not processed properly.

Specified by:

close in interface StreamOperator<RowData>

Overrides:

close in class AbstractStreamOperator<RowData>

Throws:

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

cleanupState

public void cleanupState(long time)

The method to be called when a cleanup timer fires.

Specified by:

cleanupState in class BaseTwoInputStreamOperatorWithStateRetention

Parameters:

time - The timestamp of the fired timer.

onEventTime

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

Invoked when an event-time timer fires.

Throws:

Exception