AbstractAsyncStateStreamOperator (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>
- - org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncKeyOrderedStreamOperator<OUT>
  - - org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateStreamOperator<OUT>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.state.CheckpointListener, KeyContext, KeyContextHandler, StreamOperator<OUT>, StreamOperatorStateHandler.CheckpointedStreamOperator, YieldingOperator<OUT>, AsyncKeyOrderedProcessing, AsyncKeyOrderedProcessingOperator

Direct Known Subclasses:

AbstractAsyncStateUdfStreamOperator
```
@Internal
public abstract class AbstractAsyncStateStreamOperator<OUT>
extends AbstractAsyncKeyOrderedStreamOperator<OUT>
implements AsyncKeyOrderedProcessingOperator
```
This operator is an abstract class that give the AbstractStreamOperator the ability to perform AsyncKeyOrderedProcessing. The aim is to make any subclass of AbstractStreamOperator could manipulate async state with only a change of base class.

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncKeyOrderedStreamOperator
  asyncExecutionController, currentProcessingContext, declarationManager, environment
- Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator
  combinedWatermark, config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

Constructor Summary

Constructors
Constructor Description

AbstractAsyncStateStreamOperator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected AsyncExecutionController`	`createAsyncExecutionController()`	Create a new `AsyncExecutionController` for the operator.
`protected org.apache.flink.api.java.functions.KeySelector`	`getKeySelectorForAsyncKeyedContext(int index)`	Get the `KeySelector` for the given input index.

Methods inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncKeyOrderedStreamOperator
asyncProcessWithKey, beforeInitializeStateHandler, close, drainStateRequests, finish, getAsyncKeyedStateBackend, getCurrentKey, getDeclarationManager, getElementOrder, getInternalTimerService, getOrCreateKeyedState, getRecordProcessor, handleAsyncException, isAsyncKeyOrderedProcessingEnabled, newKeySelected, postProcessElement, postProcessWatermark, prepareSnapshotPreBarrier, preProcessWatermark, preserveRecordOrderAndProcess, processNonRecord, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark, processWatermark1, processWatermark1Internal, processWatermark2, processWatermark2Internal, processWatermarkInternal, processWatermarkStatus, processWatermarkStatus, reportOrForwardLatencyMarker, setAsyncKeyedContextElement, setKeyContextElement1, setKeyContextElement2

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator
getContainingTask, getExecutionConfig, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, open, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2, processWatermarkStatus1, processWatermarkStatus2, setCurrentKey, setMailboxExecutor, setProcessingTimeService, setup, snapshotState, snapshotState, useSplittableTimers

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.runtime.operators.asyncprocessing.AsyncKeyOrderedProcessing
getRecordProcessor, isAsyncKeyOrderedProcessingEnabled

Methods inherited from interface org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncKeyOrderedProcessingOperator
asyncProcessWithKey, getDeclarationManager, getElementOrder, postProcessElement, preserveRecordOrderAndProcess, setAsyncKeyedContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler
hasKeyContext

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

- Constructor Detail
  - AbstractAsyncStateStreamOperator
```
public AbstractAsyncStateStreamOperator()
```
- Method Detail
  - getKeySelectorForAsyncKeyedContext
```
protected org.apache.flink.api.java.functions.KeySelector getKeySelectorForAsyncKeyedContext(int index)
```
    Description copied from class: AbstractAsyncKeyOrderedStreamOperator
    
    Get the KeySelector for the given input index. The KeySelector is used to extract the key from the element being processed, used in key ordered processing.
    
    Specified by:
    
    getKeySelectorForAsyncKeyedContext in class AbstractAsyncKeyOrderedStreamOperator<OUT>
    
    Parameters:
    
    index - the input index, start from 1.
  - createAsyncExecutionController
```
protected AsyncExecutionController createAsyncExecutionController()
```
    Description copied from class: AbstractAsyncKeyOrderedStreamOperator
    
    Create a new AsyncExecutionController for the operator.
    
    Specified by:
    
    createAsyncExecutionController in class AbstractAsyncKeyOrderedStreamOperator<OUT>