org.apache.flink.streaming.runtime.tasks

Class MultipleInputStreamTask<OUT>

java.lang.Object

org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable

org.apache.flink.streaming.runtime.tasks.StreamTask<OUT,MultipleInputStreamOperator<OUT>>

org.apache.flink.streaming.runtime.tasks.MultipleInputStreamTask<OUT>

All Implemented Interfaces:

AsyncExceptionHandler

@Internal
public class MultipleInputStreamTask<OUT>
extends StreamTask<OUT,MultipleInputStreamOperator<OUT>>

A StreamTask for executing a MultipleInputStreamOperator and supporting the MultipleInputStreamOperator to select input for reading.

Field Summary

Fields inherited from class org.apache.flink.streaming.runtime.tasks.StreamTask

checkpointStorage, configuration, inputProcessor, LOG, mailboxProcessor, mainOperator, operatorChain, stateBackend, systemTimerService, timerService, TRIGGER_THREAD_GROUP

Constructor Summary

Constructors

Constructor and Description
MultipleInputStreamTask(org.apache.flink.runtime.execution.Environment env)

Method Summary

Modifier and Type	Method and Description
void	abortCheckpointOnBarrier(long checkpointId, org.apache.flink.runtime.checkpoint.CheckpointException cause)
protected void	createInputProcessor(List<org.apache.flink.runtime.io.network.partition.consumer.IndexedInputGate>[] inputGates, StreamConfig.InputConfig[] inputs, WatermarkGauge[] inputWatermarkGauges, java.util.function.Function<Integer,StreamPartitioner<?>> gatePartitioners)
void	init()
Future<Boolean>	triggerCheckpointAsync(org.apache.flink.runtime.checkpoint.CheckpointMetaData metadata, org.apache.flink.runtime.checkpoint.CheckpointOptions options)
void	triggerCheckpointOnBarrier(org.apache.flink.runtime.checkpoint.CheckpointMetaData checkpointMetaData, org.apache.flink.runtime.checkpoint.CheckpointOptions checkpointOptions, org.apache.flink.runtime.checkpoint.CheckpointMetricsBuilder checkpointMetrics)

Methods inherited from class org.apache.flink.streaming.runtime.tasks.StreamTask

advanceToEndOfEventTime, afterInvoke, cancel, cancelTask, cleanup, cleanUpInvoke, createRecordWriterDelegate, createStreamTaskStateInitializer, declineCheckpoint, dispatchOperatorEvent, finalize, finishTask, getAsyncCheckpointStartDelayNanos, getAsyncOperationsThreadPool, getCancelables, getCheckpointStorage, getCompletionFuture, getConfiguration, getMailboxExecutorFactory, getName, getProcessingTimeServiceFactory, getStreamStatusMaintainer, handleAsyncException, invoke, isCanceled, isFailing, isMailboxLoopRunning, isRunning, isUsingNonBlockingInput, notifyCheckpointAbortAsync, notifyCheckpointCompleteAsync, processInput, restore, runMailboxLoop, runMailboxStep, setupNumRecordsInCounter, toString

Methods inherited from class org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable

getCurrentNumberOfSubtasks, getEnvironment, getExecutionConfig, getIndexInSubtaskGroup, getJobConfiguration, getTaskConfiguration, getUserCodeClassLoader, setShouldInterruptOnCancel, shouldInterruptOnCancel

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MultipleInputStreamTask

public MultipleInputStreamTask(org.apache.flink.runtime.execution.Environment env)
                        throws Exception

Throws:

Exception

Method Detail

init

public void init()
          throws Exception

Specified by:

init in class StreamTask<OUT,MultipleInputStreamOperator<OUT>>

Throws:

Exception

createInputProcessor

protected void createInputProcessor(List<org.apache.flink.runtime.io.network.partition.consumer.IndexedInputGate>[] inputGates,
                                    StreamConfig.InputConfig[] inputs,
                                    WatermarkGauge[] inputWatermarkGauges,
                                    java.util.function.Function<Integer,StreamPartitioner<?>> gatePartitioners)

triggerCheckpointAsync

public Future<Boolean> triggerCheckpointAsync(org.apache.flink.runtime.checkpoint.CheckpointMetaData metadata,
                                              org.apache.flink.runtime.checkpoint.CheckpointOptions options)

Overrides:

triggerCheckpointAsync in class StreamTask<OUT,MultipleInputStreamOperator<OUT>>

triggerCheckpointOnBarrier

public void triggerCheckpointOnBarrier(org.apache.flink.runtime.checkpoint.CheckpointMetaData checkpointMetaData,
                                       org.apache.flink.runtime.checkpoint.CheckpointOptions checkpointOptions,
                                       org.apache.flink.runtime.checkpoint.CheckpointMetricsBuilder checkpointMetrics)
                                throws IOException

Overrides:

triggerCheckpointOnBarrier in class StreamTask<OUT,MultipleInputStreamOperator<OUT>>

Throws:

IOException

abortCheckpointOnBarrier

public void abortCheckpointOnBarrier(long checkpointId,
                                     org.apache.flink.runtime.checkpoint.CheckpointException cause)
                              throws IOException

Overrides:

abortCheckpointOnBarrier in class StreamTask<OUT,MultipleInputStreamOperator<OUT>>

Throws:

IOException