public class ProcTimeMiniBatchAssignerOperator extends AbstractStreamOperator<RowData> implements OneInputStreamOperator<RowData,RowData>, ProcessingTimeCallback
NOTE: currently, we use Watermark
to represents the mini-batch marker.
The difference between this operator and RowTimeMiniBatchAssginerOperator
is that,
this operator generates watermarks by itself using processing time, but the other forwards
watermarks from upstream.
chainingStrategy, config, latencyStats, LOG, metrics, output, processingTimeService
Constructor and Description |
---|
ProcTimeMiniBatchAssignerOperator(long intervalMs) |
Modifier and Type | Method and Description |
---|---|
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 |
onProcessingTime(long timestamp)
This method is invoked with the timestamp for which the trigger was scheduled.
|
void |
open()
This method is called immediately before any elements are processed, it should contain the
operator's initialization logic, e.g.
|
void |
processElement(StreamRecord<RowData> element)
Processes one element that arrived on this input of the
MultipleInputStreamOperator . |
void |
processWatermark(Watermark mark)
Override the base implementation to completely ignore watermarks propagated from upstream (we
rely only on the
AssignerWithPeriodicWatermarks to emit watermarks from here). |
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, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setProcessingTimeService, setup, snapshotState, snapshotState
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
setKeyContextElement
dispose, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState
notifyCheckpointAborted, notifyCheckpointComplete
getCurrentKey, setCurrentKey
processLatencyMarker
public ProcTimeMiniBatchAssignerOperator(long intervalMs)
public void open() throws Exception
AbstractStreamOperator
The default implementation does nothing.
open
in interface StreamOperator<RowData>
open
in class AbstractStreamOperator<RowData>
Exception
- An exception in this method causes the operator to fail.public void processElement(StreamRecord<RowData> element) throws Exception
Input
MultipleInputStreamOperator
.
This method is guaranteed to not be called concurrently with other methods of the operator.processElement
in interface Input<RowData>
Exception
public void onProcessingTime(long timestamp) throws Exception
ProcessingTimeCallback
If the triggering is delayed for whatever reason (trigger timer was blocked, JVM stalled due to a garbage collection), the timestamp supplied to this function will still be the original timestamp for which the trigger was scheduled.
onProcessingTime
in interface ProcessingTimeCallback
timestamp
- The timestamp for which the trigger event was scheduled.Exception
public void processWatermark(Watermark mark) throws Exception
AssignerWithPeriodicWatermarks
to emit watermarks from here).processWatermark
in interface Input<RowData>
processWatermark
in class AbstractStreamOperator<RowData>
Exception
Watermark
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.Copyright © 2014–2022 The Apache Software Foundation. All rights reserved.