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

Class TemporalProcessTimeJoinOperator

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.api.operators.SetupableStreamOperator<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator, org.apache.flink.streaming.api.operators.Triggerable<Object,org.apache.flink.runtime.state.VoidNamespace>, org.apache.flink.streaming.api.operators.TwoInputStreamOperator<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

public class TemporalProcessTimeJoinOperator
extends BaseTwoInputStreamOperatorWithStateRetention

The operator to temporal join a stream on processing time.

For temporal TableFunction join (LATERAL TemporalTableFunction(o.proctime)) and temporal table join (FOR SYSTEM_TIME AS OF), they can reuse same processing-time operator implementation, the differences between them are: (1) The temporal TableFunction join only supports single column in primary key but temporal table join supports arbitrary columns in primary key. (2) The temporal TableFunction join only supports inner join, temporal table join supports both inner join and left outer join.

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, lastRecordAttributes1, lastRecordAttributes2, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor and Description
TemporalProcessTimeJoinOperator(InternalTypeInfo<org.apache.flink.table.data.RowData> rightType, GeneratedJoinCondition generatedJoinCondition, long minRetentionTime, long maxRetentionTime, boolean isLeftOuterJoin)

Method Summary

Modifier and Type	Method and Description
void	cleanupState(long time) The method to be called when a cleanup timer fires.
void	close()
void	onEventTime(org.apache.flink.streaming.api.operators.InternalTimer<Object,org.apache.flink.runtime.state.VoidNamespace> timer) Invoked when an event-time timer fires.
void	open()
void	processElement1(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)
void	processElement2(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)

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

finish, getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, 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, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus1, processWatermarkStatus2

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

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

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

notifyCheckpointAborted, notifyCheckpointComplete

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

Constructor Detail

TemporalProcessTimeJoinOperator

public TemporalProcessTimeJoinOperator(InternalTypeInfo<org.apache.flink.table.data.RowData> rightType,
                                       GeneratedJoinCondition generatedJoinCondition,
                                       long minRetentionTime,
                                       long maxRetentionTime,
                                       boolean isLeftOuterJoin)

Method Detail

open

public void open()
          throws Exception

Specified by:

open in interface org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>

Overrides:

open in class BaseTwoInputStreamOperatorWithStateRetention

Throws:

Exception

processElement1

public void processElement1(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)
                     throws Exception

Throws:

Exception

processElement2

public void processElement2(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)
                     throws Exception

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in interface org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>

Overrides:

close in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<org.apache.flink.table.data.RowData>

Throws:

Exception

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(org.apache.flink.streaming.api.operators.InternalTimer<Object,org.apache.flink.runtime.state.VoidNamespace> timer)
                 throws Exception

Invoked when an event-time timer fires.

Throws:

Exception