org.apache.flink.streaming.runtime.tasks

类 OneInputStreamTask<IN,OUT>

java.lang.Object

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

org.apache.flink.streaming.runtime.tasks.OneInputStreamTask<IN,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, org.apache.flink.runtime.taskmanager.AsyncExceptionHandler, ContainingTaskDetails

直接已知子类:

StreamIterationHead, StreamIterationTail

@Internal
public class OneInputStreamTask<IN,OUT>
extends StreamTask<OUT,OneInputStreamOperator<IN,OUT>>

A StreamTask for executing a OneInputStreamOperator.

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, recordWriter, stateBackend, systemTimerService, timerService, TRIGGER_THREAD_GROUP

构造器概要

构造器

构造器和说明
OneInputStreamTask(org.apache.flink.runtime.execution.Environment env) Constructor for initialization, possibly with initial state (recovery / savepoint / etc).
OneInputStreamTask(org.apache.flink.runtime.execution.Environment env, TimerService timeProvider) Constructor for initialization, possibly with initial state (recovery / savepoint / etc).

方法概要

限定符和类型	方法和说明
protected Optional<CheckpointBarrierHandler>	getCheckpointBarrierHandler() Acquires the optional CheckpointBarrierHandler associated with this stream task.
void	init()

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

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

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

OneInputStreamTask

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

Constructor for initialization, possibly with initial state (recovery / savepoint / etc).

参数:

env - The task environment for this task.

抛出:

Exception

OneInputStreamTask

@VisibleForTesting
public OneInputStreamTask(org.apache.flink.runtime.execution.Environment env,
                                             @Nullable
                                             TimerService timeProvider)
                                      throws Exception

Constructor for initialization, possibly with initial state (recovery / savepoint / etc).

This constructor accepts a special TimerService. By default (and if null is passes for the time provider) a DefaultTimerService will be used.

参数:

env - The task environment for this task.

timeProvider - Optionally, a specific time provider to use.

抛出:

Exception

方法详细资料

init

public void init()
          throws Exception

指定者:

init 在类中 StreamTask<OUT,OneInputStreamOperator<IN,OUT>>

抛出:

Exception

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,OneInputStreamOperator<IN,OUT>>