org.apache.flink.streaming.runtime.tasks.mailbox

类 MailboxExecutorImpl

java.lang.Object

org.apache.flink.streaming.runtime.tasks.mailbox.MailboxExecutorImpl

所有已实现的接口:

MailboxExecutor

@Internal
public final class MailboxExecutorImpl
extends Object
implements MailboxExecutor

Implementation of an executor service build around a mailbox-based execution model.

字段概要

从接口继承的字段 org.apache.flink.streaming.api.operators.MailboxExecutor

EMPTY_ARGS

构造器概要

构造器

构造器和说明
MailboxExecutorImpl(TaskMailbox mailbox, int priority, StreamTaskActionExecutor actionExecutor)
MailboxExecutorImpl(TaskMailbox mailbox, int priority, StreamTaskActionExecutor actionExecutor, MailboxProcessor mailboxProcessor)

方法概要

限定符和类型	方法和说明
void	execute(org.apache.flink.util.function.ThrowingRunnable<? extends Exception> command, String descriptionFormat, Object... descriptionArgs) Executes the given command at some time in the future in the mailbox thread.
boolean	isIdle()
boolean	tryYield() This methods attempts to run the command at the head of the mailbox.
void	yield() This methods starts running the command at the head of the mailbox and is intended to be used by the mailbox thread to yield from a currently ongoing action to another command.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.streaming.api.operators.MailboxExecutor

execute, submit, submit, submit, submit

构造器详细资料

MailboxExecutorImpl

public MailboxExecutorImpl(@Nonnull
                           TaskMailbox mailbox,
                           int priority,
                           StreamTaskActionExecutor actionExecutor)

MailboxExecutorImpl

public MailboxExecutorImpl(@Nonnull
                           TaskMailbox mailbox,
                           int priority,
                           StreamTaskActionExecutor actionExecutor,
                           MailboxProcessor mailboxProcessor)

方法详细资料

isIdle

public boolean isIdle()

execute

public void execute(org.apache.flink.util.function.ThrowingRunnable<? extends Exception> command,
                    String descriptionFormat,
                    Object... descriptionArgs)

从接口复制的说明: MailboxExecutor

Executes the given command at some time in the future in the mailbox thread.

An optional description can (and should) be added to ease debugging and error-reporting. The description may contain placeholder that refer to the provided description arguments using Formatter syntax. The actual description is only formatted on demand.

指定者:

execute 在接口中 MailboxExecutor

参数:

command - the runnable task to add to the mailbox for execution.

descriptionFormat - the optional description for the command that is used for debugging and error-reporting.

descriptionArgs - the parameters used to format the final description string.

yield

public void yield()
           throws InterruptedException

从接口复制的说明: MailboxExecutor

This methods starts running the command at the head of the mailbox and is intended to be used by the mailbox thread to yield from a currently ongoing action to another command. The method blocks until another command to run is available in the mailbox and must only be called from the mailbox thread. Must only be called from the mailbox thread to not violate the single-threaded execution model.

指定者:

yield 在接口中 MailboxExecutor

抛出:

InterruptedException - on interruption.

tryYield

public boolean tryYield()

从接口复制的说明: MailboxExecutor

This methods attempts to run the command at the head of the mailbox. This is intended to be used by the mailbox thread to yield from a currently ongoing action to another command. The method returns true if a command was found and executed or false if the mailbox was empty. Must only be called from the mailbox thread to not violate the single-threaded execution model.

指定者:

tryYield 在接口中 MailboxExecutor

返回:

true on successful yielding to another command, false if there was no command to yield to.