org.apache.flink.streaming.runtime.tasks

类 MultipleInputStreamTask<OUT>

java.lang.Object

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

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

所有已实现的接口:

org.apache.flink.runtime.jobgraph.tasks.CheckpointableTask, org.apache.flink.runtime.jobgraph.tasks.CoordinatedTask, org.apache.flink.runtime.jobgraph.tasks.TaskInvokable, AsyncExceptionHandler, ContainingTaskDetails

@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.

字段概要

从类继承的字段 org.apache.flink.streaming.runtime.tasks.StreamTask

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

构造器概要

构造器

构造器和说明
MultipleInputStreamTask(org.apache.flink.runtime.execution.Environment env)

方法概要

限定符和类型	方法和说明
void	abortCheckpointOnBarrier(long checkpointId, org.apache.flink.runtime.checkpoint.CheckpointException cause)
protected void	advanceToEndOfEventTime() Emits the MAX_WATERMARK so that all registered timers are fired.
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)
protected Optional<CheckpointBarrierHandler>	getCheckpointBarrierHandler() Acquires the optional CheckpointBarrierHandler associated with this stream task.
void	init()
CompletableFuture<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)

从类继承的方法 org.apache.flink.streaming.runtime.tasks.StreamTask

afterInvoke, assertTriggeringCheckpointExceptions, cancel, cancelTask, cleanUp, cleanUpInternal, createRecordWriterDelegate, createStreamTaskStateInitializer, declineCheckpoint, dispatchOperatorEvent, endData, finalize, finishTask, getAsyncCheckpointStartDelayNanos, getAsyncOperationsThreadPool, getCancelables, getCheckpointStorage, getCompletionFuture, getConfiguration, getEnvironment, getMailboxExecutorFactory, getName, getProcessingTimeServiceFactory, handleAsyncException, invoke, isCanceled, isFailing, isMailboxLoopRunning, isRunning, isUsingNonBlockingInput, maybeInterruptOnCancel, notifyCheckpointAbortAsync, notifyCheckpointCompleteAsync, processInput, restore, runMailboxLoop, runMailboxStep, setSynchronousSavepoint, setupNumRecordsInCounter, toString

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.streaming.runtime.tasks.ContainingTaskDetails

getExecutionConfig, getIndexInSubtaskGroup, getJobConfiguration, getUserCodeClassLoader

构造器详细资料

MultipleInputStreamTask

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

抛出:

Exception

方法详细资料

init

public void init()
          throws Exception

指定者:

init 在类中 StreamTask<OUT,MultipleInputStreamOperator<OUT>>

抛出:

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)

getCheckpointBarrierHandler

protected Optional<CheckpointBarrierHandler> getCheckpointBarrierHandler()

从类复制的说明: StreamTask

Acquires the optional CheckpointBarrierHandler associated with this stream task. The CheckpointBarrierHandler should exist if the task has data inputs and requires to align the barriers.

覆盖:

getCheckpointBarrierHandler 在类中 StreamTask<OUT,MultipleInputStreamOperator<OUT>>

triggerCheckpointAsync

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

指定者:

triggerCheckpointAsync 在接口中 org.apache.flink.runtime.jobgraph.tasks.CheckpointableTask

覆盖:

triggerCheckpointAsync 在类中 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

指定者:

triggerCheckpointOnBarrier 在接口中 org.apache.flink.runtime.jobgraph.tasks.CheckpointableTask

覆盖:

triggerCheckpointOnBarrier 在类中 StreamTask<OUT,MultipleInputStreamOperator<OUT>>

抛出:

IOException

abortCheckpointOnBarrier

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

指定者:

abortCheckpointOnBarrier 在接口中 org.apache.flink.runtime.jobgraph.tasks.CheckpointableTask

覆盖:

abortCheckpointOnBarrier 在类中 StreamTask<OUT,MultipleInputStreamOperator<OUT>>

抛出:

IOException

advanceToEndOfEventTime

protected void advanceToEndOfEventTime()
                                throws Exception

从类复制的说明: StreamTask

Emits the MAX_WATERMARK so that all registered timers are fired.

This is used by the source task when the job is TERMINATED. In the case, we want all the timers registered throughout the pipeline to fire and the related state (e.g. windows) to be flushed.

For tasks other than the source task, this method does nothing.

覆盖:

advanceToEndOfEventTime 在类中 StreamTask<OUT,MultipleInputStreamOperator<OUT>>

抛出:

Exception