public class TemporalProcessTimeJoinOperator extends BaseTwoInputStreamOperatorWithStateRetention
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.
stateCleaningEnabled
chainingStrategy, config, latencyStats, LOG, metrics, output, processingTimeService
Constructor and Description |
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TemporalProcessTimeJoinOperator(InternalTypeInfo<RowData> rightType,
GeneratedJoinCondition generatedJoinCondition,
long minRetentionTime,
long maxRetentionTime,
boolean isLeftOuterJoin) |
Modifier and Type | Method and Description |
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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
Input.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.
|
cleanupLastTimer, onProcessingTime, registerProcessingCleanupTimer
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, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setProcessingTimeService, setup, snapshotState, snapshotState
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2
dispose, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState
notifyCheckpointAborted, notifyCheckpointComplete
getCurrentKey, setCurrentKey
public TemporalProcessTimeJoinOperator(InternalTypeInfo<RowData> rightType, GeneratedJoinCondition generatedJoinCondition, long minRetentionTime, long maxRetentionTime, boolean isLeftOuterJoin)
public void open() throws Exception
AbstractStreamOperator
The default implementation does nothing.
open
in interface StreamOperator<RowData>
open
in class BaseTwoInputStreamOperatorWithStateRetention
Exception
- An exception in this method causes the operator to fail.public void processElement1(StreamRecord<RowData> element) throws Exception
TwoInputStreamOperator
Exception
public void processElement2(StreamRecord<RowData> element) throws Exception
TwoInputStreamOperator
Exception
public void close() throws Exception
AbstractStreamOperator
Input.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.
close
in interface StreamOperator<RowData>
close
in class AbstractStreamOperator<RowData>
Exception
- An exception in this method causes the operator to fail.public void cleanupState(long time)
cleanupState
in class BaseTwoInputStreamOperatorWithStateRetention
time
- The timestamp of the fired timer.public void onEventTime(InternalTimer<Object,VoidNamespace> timer) throws Exception
Exception
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