SingleThreadEventLoop (Netty API Reference (4.1.22.Final))

java.lang.Object
- java.util.concurrent.AbstractExecutorService
- - io.netty.util.concurrent.AbstractEventExecutor
  - - io.netty.util.concurrent.AbstractScheduledEventExecutor
    - - io.netty.util.concurrent.SingleThreadEventExecutor
      - io.netty.channel.SingleThreadEventLoop

All Implemented Interfaces:

EventLoop ， EventLoopGroup ， EventExecutor ， EventExecutorGroup ， OrderedEventExecutor ，java.lang.Iterable < EventExecutor >，java.util.concurrent.Executor，java.util.concurrent.ExecutorService中，java.util.concurrent.ScheduledExecutorService

已知直接子类：

DefaultEventLoop ， NioEventLoop ， ThreadPerChannelEventLoop
```
public abstract class SingleThreadEventLoop
extends SingleThreadEventExecutor
implements EventLoop
```
EventLoop的抽象基类，在单个线程中执行其所有提交的任务。

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`DEFAULT_MAX_PENDING_TASKS`

构造方法摘要

构造方法
Modifier	Constructor and Description
`protected`	`SingleThreadEventLoop(EventLoopGroup parent, java.util.concurrent.Executor executor, boolean addTaskWakesUp)`
`protected`	`SingleThreadEventLoop(EventLoopGroup parent, java.util.concurrent.Executor executor, boolean addTaskWakesUp, int maxPendingTasks, RejectedExecutionHandler rejectedExecutionHandler)`
`protected`	`SingleThreadEventLoop(EventLoopGroup parent, java.util.concurrent.ThreadFactory threadFactory, boolean addTaskWakesUp)`
`protected`	`SingleThreadEventLoop(EventLoopGroup parent, java.util.concurrent.ThreadFactory threadFactory, boolean addTaskWakesUp, int maxPendingTasks, RejectedExecutionHandler rejectedExecutionHandler)`

方法摘要

所有方法接口方法具体的方法弃用的方法
Modifier and Type	Method and Description
`protected void`	`afterRunningAllTasks()` 在从 `SingleThreadEventExecutor.runAllTasks()`和 `SingleThreadEventExecutor.runAllTasks(long)`返回之前调用。
`void`	`executeAfterEventLoopIteration(java.lang.Runnable task)` 添加要在下一次（或电流）结束运行一次任务 `eventloop`迭代。
`protected boolean`	`hasTasks()`
`EventLoop`	`next()` 返回对自身的引用。
`EventLoopGroup`	`parent()` 返回这个`EventExecutor`的父亲的`EventExecutorGroup` ，
`int`	`pendingTasks()` 返回待处理任务的数量。
`ChannelFuture`	`register(Channel channel)` 用`EventLoop`注册一个`Channel` 。
`ChannelFuture`	`register(Channel channel, ChannelPromise promise)` 已过时。
`ChannelFuture`	`register(ChannelPromise promise)` 使用`ChannelFuture`通过此`EventLoop`注册一个`Channel` 。
`protected boolean`	`wakesUpForTask(java.lang.Runnable task)`

Methods inherited from class io.netty.util.concurrent.SingleThreadEventExecutor
addShutdownHook, addTask, awaitTermination, cleanup, confirmShutdown, delayNanos, execute, inEventLoop, interruptThread, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isShuttingDown, isTerminated, newTaskQueue, newTaskQueue, peekTask, pollTask, pollTaskFrom, reject, reject, removeShutdownHook, removeTask, run, runAllTasks, runAllTasks, runAllTasksFrom, shutdown, shutdownGracefully, takeTask, terminationFuture, threadProperties, updateLastExecutionTime, wakeup

Methods inherited from class io.netty.util.concurrent.AbstractScheduledEventExecutor
cancelScheduledTasks, hasScheduledTasks, nanoTime, nextScheduledTaskNano, pollScheduledTask, pollScheduledTask, schedule, schedule, scheduleAtFixedRate, scheduleWithFixedDelay

Methods inherited from class io.netty.util.concurrent.AbstractEventExecutor
inEventLoop, iterator, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, newTaskFor, newTaskFor, safeExecute, shutdownGracefully, shutdownNow, submit, submit, submit

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.util.concurrent.EventExecutor
inEventLoop, inEventLoop, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture

Methods inherited from interface io.netty.util.concurrent.EventExecutorGroup
isShuttingDown, iterator, schedule, schedule, scheduleAtFixedRate, scheduleWithFixedDelay, shutdown, shutdownGracefully, shutdownGracefully, shutdownNow, submit, submit, submit, terminationFuture

Methods inherited from interface java.util.concurrent.ExecutorService
awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated

Methods inherited from interface java.util.concurrent.Executor
execute

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- 字段详细信息
  - DEFAULT_MAX_PENDING_TASKS
```
protected static final int DEFAULT_MAX_PENDING_TASKS
```
- 构造方法详细信息
  - SingleThreadEventLoop
```
protected SingleThreadEventLoop(EventLoopGroup parent,
                                java.util.concurrent.ThreadFactory threadFactory,
                                boolean addTaskWakesUp)
```
  - SingleThreadEventLoop
```
protected SingleThreadEventLoop(EventLoopGroup parent,
                                java.util.concurrent.Executor executor,
                                boolean addTaskWakesUp)
```
  - SingleThreadEventLoop
```
protected SingleThreadEventLoop(EventLoopGroup parent,
                                java.util.concurrent.ThreadFactory threadFactory,
                                boolean addTaskWakesUp,
                                int maxPendingTasks,
                                RejectedExecutionHandler rejectedExecutionHandler)
```
  - SingleThreadEventLoop
```
protected SingleThreadEventLoop(EventLoopGroup parent,
                                java.util.concurrent.Executor executor,
                                boolean addTaskWakesUp,
                                int maxPendingTasks,
                                RejectedExecutionHandler rejectedExecutionHandler)
```
- 方法详细信息
  - parent
```
public EventLoopGroup parent()
```
    从接口EventExecutor复制的描述
    
    返回此EventExecutor的母公司的EventExecutorGroup ，
    
    Specified by:
    
    parent在界面 EventLoop
    
    Specified by:
    
    parent在界面 EventExecutor
    
    重写：
    
    parent在课堂上 AbstractEventExecutor
  - next
```
public EventLoop next()
```
    从界面复制的描述： EventExecutor
    
    返回对自身的引用。
    
    Specified by:
    
    next在界面 EventLoopGroup
    
    Specified by:
    
    next在界面 EventExecutor
    
    Specified by:
    
    next在界面 EventExecutorGroup
    
    重写：
    
    next在课堂上 AbstractEventExecutor
  - register
```
public ChannelFuture register(Channel channel)
```
    从接口复制的描述： EventLoopGroup
    
    注册一个Channel这个EventLoop 。一旦注册完成，返回的ChannelFuture将会收到通知。
    
    Specified by:
    
    register在界面 EventLoopGroup
  - register
```
public ChannelFuture register(ChannelPromise promise)
```
    从接口复制的描述： EventLoopGroup
    
    注册一个Channel这个EventLoop使用ChannelFuture 。一旦注册完成，通过的ChannelFuture将会收到通知，并且还会返回。
    
    Specified by:
    
    register在界面 EventLoopGroup
  - register
```
@Deprecated
public ChannelFuture register(Channel channel,
                                          ChannelPromise promise)
```
    已过时。
    
    从界面复制的描述： EventLoopGroup
    
    注册一个Channel这个EventLoop 。一旦注册完成，通过的ChannelFuture将会收到通知，并且会返回。
    
    Specified by:
    
    register ，界面 EventLoopGroup
  - executeAfterEventLoopIteration
```
@UnstableApi
public final void executeAfterEventLoopIteration(java.lang.Runnable task)
```
    添加要在下一次（或电流）结束运行一次任务 eventloop迭代。
    
    参数
    
    task - 待补充。
  - wakesUpForTask
```
protected boolean wakesUpForTask(java.lang.Runnable task)
```
    重写：
    
    wakesUpForTask在课堂上 SingleThreadEventExecutor
  - afterRunningAllTasks
```
protected void afterRunningAllTasks()
```
    从类复制的描述： SingleThreadEventExecutor
    
    在从 SingleThreadEventExecutor.runAllTasks()和 SingleThreadEventExecutor.runAllTasks(long)返回之前调用。
    
    重写：
    
    afterRunningAllTasks在课堂上 SingleThreadEventExecutor
  - hasTasks
```
protected boolean hasTasks()
```
    重写：
    
    hasTasks在课堂上 SingleThreadEventExecutor
    
    另请参见：
    
    Collection.isEmpty()
  - pendingTasks
```
public int pendingTasks()
```
    从类复制的描述： SingleThreadEventExecutor
    
    返回待处理任务的数量。 请注意，此操作可能很昂贵，因为它取决于SingleThreadEventExecutor的内部实现。 所以使用它很在乎！
    
    重写：
    
    pendingTasks in class SingleThreadEventExecutor

Class SingleThreadEventLoop

Field Summary

构造方法摘要

方法摘要

Methods inherited from class io.netty.util.concurrent.SingleThreadEventExecutor

Methods inherited from class io.netty.util.concurrent.AbstractScheduledEventExecutor

Methods inherited from class io.netty.util.concurrent.AbstractEventExecutor

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.util.concurrent.EventExecutor

Methods inherited from interface io.netty.util.concurrent.EventExecutorGroup

Methods inherited from interface java.util.concurrent.ExecutorService

Methods inherited from interface java.util.concurrent.Executor

Methods inherited from interface java.lang.Iterable

字段详细信息

DEFAULT_MAX_PENDING_TASKS

构造方法详细信息

SingleThreadEventLoop

SingleThreadEventLoop

SingleThreadEventLoop

SingleThreadEventLoop

方法详细信息

parent

next

register

register

register

executeAfterEventLoopIteration

wakesUpForTask

afterRunningAllTasks

hasTasks

pendingTasks