Package org.apache.flink.table.runtime.operators.join.window

Class WindowJoinOperator

java.lang.Object

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

org.apache.flink.table.runtime.operators.TableStreamOperator<org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.operators.join.window.WindowJoinOperator

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<org.apache.flink.table.data.RowData,Long>, 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>, org.apache.flink.streaming.api.operators.YieldingOperator<org.apache.flink.table.data.RowData>

public abstract class WindowJoinOperator
extends TableStreamOperator<org.apache.flink.table.data.RowData>
implements 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>, org.apache.flink.streaming.api.operators.Triggerable<org.apache.flink.table.data.RowData,Long>, org.apache.flink.streaming.api.operators.KeyContext

Streaming window join operator.

Note: currently, WindowJoinOperator doesn't support early-fire and late-arrival. Thus late elements (elements belong to emitted windows) will be simply dropped.

Note: currently, WindowJoinOperator doesn't support DELETE or UPDATE_BEFORE input row.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

TableStreamOperator.ContextImpl

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.flink.streaming.api.operators.TimestampedCollector<org.apache.flink.table.data.RowData>	collector	This is used for emitting elements with a given timestamp.
protected JoinConditionWithNullFilters	joinCondition
protected RowDataSerializer	leftSerializer
protected RowDataSerializer	rightSerializer

Fields inherited from class org.apache.flink.table.runtime.operators.TableStreamOperator

ctx, currentWatermark

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

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

Method Summary

Modifier and Type	Method	Description
void	close()
abstract void	join(Iterable<org.apache.flink.table.data.RowData> leftRecords, Iterable<org.apache.flink.table.data.RowData> rightRecords)
void	onEventTime(org.apache.flink.streaming.api.operators.InternalTimer<org.apache.flink.table.data.RowData,Long> timer)
void	onProcessingTime(org.apache.flink.streaming.api.operators.InternalTimer<org.apache.flink.table.data.RowData,Long> timer)
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.TableStreamOperator

computeMemorySize, processWatermark, useSplittableTimers

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, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setChainingStrategy, 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.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.StreamOperator

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

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

processLatencyMarker1, processLatencyMarker2, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus1, processWatermarkStatus2

Field Detail

leftSerializer

protected final RowDataSerializer leftSerializer

rightSerializer

protected final RowDataSerializer rightSerializer

joinCondition

protected transient JoinConditionWithNullFilters joinCondition

collector

protected transient org.apache.flink.streaming.api.operators.TimestampedCollector<org.apache.flink.table.data.RowData> collector

This is used for emitting elements with a given timestamp.

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 TableStreamOperator<org.apache.flink.table.data.RowData>

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

processElement1

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

Specified by:

processElement1 in interface 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>

Throws:

Exception

processElement2

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

Specified by:

processElement2 in interface 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>

Throws:

Exception

onProcessingTime

public void onProcessingTime(org.apache.flink.streaming.api.operators.InternalTimer<org.apache.flink.table.data.RowData,Long> timer)
                      throws Exception

Specified by:

onProcessingTime in interface org.apache.flink.streaming.api.operators.Triggerable<org.apache.flink.table.data.RowData,Long>

Throws:

Exception

onEventTime

public void onEventTime(org.apache.flink.streaming.api.operators.InternalTimer<org.apache.flink.table.data.RowData,Long> timer)
                 throws Exception

Specified by:

onEventTime in interface org.apache.flink.streaming.api.operators.Triggerable<org.apache.flink.table.data.RowData,Long>

Throws:

Exception

join

public abstract void join(Iterable<org.apache.flink.table.data.RowData> leftRecords,
                          Iterable<org.apache.flink.table.data.RowData> rightRecords)