public class ProcessOperator<IN,OUT> extends AbstractUdfStreamOperator<OUT,OneInputStreamProcessFunction<IN,OUT>> implements OneInputStreamOperator<IN,OUT>, BoundedOneInput
OneInputStreamProcessFunction
.Modifier and Type | Field and Description |
---|---|
protected DefaultRuntimeContext |
context |
protected NonPartitionedContext<OUT> |
nonPartitionedContext |
protected TimestampCollector<OUT> |
outputCollector |
protected DefaultPartitionedContext |
partitionedContext |
userFunction
chainingStrategy, config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, LOG, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager
Constructor and Description |
---|
ProcessOperator(OneInputStreamProcessFunction<IN,OUT> userFunction) |
Modifier and Type | Method and Description |
---|---|
protected Object |
currentKey() |
void |
endInput()
It is notified that no more data will arrive from the input.
|
protected NonPartitionedContext<OUT> |
getNonPartitionedContext() |
protected TimestampCollector<OUT> |
getOutputCollector() |
protected ProcessingTimeManager |
getProcessingTimeManager() |
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<IN> element)
Processes one element that arrived on this input of the
MultipleInputStreamOperator . |
close, finish, getUserFunction, getUserFunctionParameters, initializeState, notifyCheckpointAborted, notifyCheckpointComplete, setOutputType, setup, snapshotState
getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, isUsingCustomRawKeyedState, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, snapshotState, useSplittableTimers
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
setKeyContextElement
close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState
notifyCheckpointAborted, notifyCheckpointComplete
getCurrentKey, setCurrentKey
processLatencyMarker, processRecordAttributes, processWatermark, processWatermarkStatus
hasKeyContext
protected transient DefaultRuntimeContext context
protected transient DefaultPartitionedContext partitionedContext
protected transient NonPartitionedContext<OUT> nonPartitionedContext
protected transient TimestampCollector<OUT> outputCollector
public ProcessOperator(OneInputStreamProcessFunction<IN,OUT> userFunction)
public void open() throws Exception
AbstractStreamOperator
The default implementation does nothing.
open
in interface StreamOperator<OUT>
open
in class AbstractUdfStreamOperator<OUT,OneInputStreamProcessFunction<IN,OUT>>
Exception
- An exception in this method causes the operator to fail.public void processElement(StreamRecord<IN> element) throws Exception
Input
MultipleInputStreamOperator
.
This method is guaranteed to not be called concurrently with other methods of the operator.processElement
in interface Input<IN>
Exception
protected TimestampCollector<OUT> getOutputCollector()
public void endInput() throws Exception
BoundedOneInput
WARNING: It is not safe to use this method to commit any transactions or other side
effects! You can use this method to flush any buffered data that can later on be committed
e.g. in a CheckpointListener.notifyCheckpointComplete(long)
.
NOTE: Given it is semantically very similar to the StreamOperator.finish()
method. It might be dropped in favour of the other method at some point in time.
endInput
in interface BoundedOneInput
Exception
protected Object currentKey()
protected ProcessingTimeManager getProcessingTimeManager()
protected NonPartitionedContext<OUT> getNonPartitionedContext()
Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.