io.netty.util.concurrent

Interface EventExecutorGroup

All Superinterfaces:

Executor, ExecutorService, ScheduledExecutorService

All Known Subinterfaces:

EventExecutor

All Known Implementing Classes:

AbstractEventExecutor, AbstractEventExecutorGroup, DefaultEventExecutor, DefaultEventExecutorGroup, GlobalEventExecutor, ImmediateEventExecutor, MultithreadEventExecutorGroup, SingleThreadEventExecutor

public interface EventExecutorGroup
extends ScheduledExecutorService

The EventExecutorGroup is responsible to provide EventExecutor's to use via its next() method. Beside this it also is responsible to handle their live-cycle and allows to shut them down in a global fashion.

Method Summary

Methods

Modifier and Type	Method and Description
<E extends EventExecutor> Set<E>	children() Returns the unmodifiable set of EventExecutors managed by this EventExecutorGroup.
boolean	isShuttingDown() Returns true if and only if all EventExecutors managed by this EventExecutorGroup are being shut down gracefuclly or was shut down.
EventExecutor	next() Returns one of the EventExecutors managed by this EventExecutorGroup.
<V> ScheduledFuture<V>	schedule(Callable<V> callable, long delay, TimeUnit unit)
ScheduledFuture<?>	schedule(Runnable command, long delay, TimeUnit unit)
ScheduledFuture<?>	scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit)
ScheduledFuture<?>	scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit)
void	shutdown() Deprecated. shutdownGracefully(long, long, TimeUnit) or shutdownGracefully() instead.
Future<?>	shutdownGracefully() Shortcut method for shutdownGracefully(long, long, TimeUnit) with sensible default values.
Future<?>	shutdownGracefully(long quietPeriod, long timeout, TimeUnit unit) Signals this executor that the caller wants the executor to be shut down.
List<Runnable>	shutdownNow() Deprecated. shutdownGracefully(long, long, TimeUnit) or shutdownGracefully() instead.
<T> Future<T>	submit(Callable<T> task)
Future<?>	submit(Runnable task)
<T> Future<T>	submit(Runnable task, T result)
Future<?>	terminationFuture() Returns the Future which is notified when all EventExecutors managed by this EventExecutorGroup have been terminated.

Methods inherited from interface java.util.concurrent.ExecutorService

awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated

Methods inherited from interface java.util.concurrent.Executor

execute

Method Detail

isShuttingDown

boolean isShuttingDown()

Returns true if and only if all EventExecutors managed by this EventExecutorGroup are being shut down gracefuclly or was shut down.

shutdownGracefully

Future<?> shutdownGracefully()

Shortcut method for shutdownGracefully(long, long, TimeUnit) with sensible default values.

Returns:

the terminationFuture()

shutdownGracefully

Future<?> shutdownGracefully(long quietPeriod,
                           long timeout,
                           TimeUnit unit)

Signals this executor that the caller wants the executor to be shut down. Once this method is called, isShuttingDown() starts to return true, and the executor prepares to shut itself down. Unlike shutdown(), graceful shutdown ensures that no tasks are submitted for 'the quiet period' (usually a couple seconds) before it shuts itself down. If a task is submitted during the quiet period, it is guaranteed to be accepted and the quiet period will start over.

Parameters:

quietPeriod - the quiet period as described in the documentation

timeout - the maximum amount of time to wait until the executor is shutdown() regardless if a task was submitted during the quiet period

unit - the unit of quietPeriod and timeout

Returns:

the terminationFuture()

terminationFuture

Future<?> terminationFuture()

Returns the Future which is notified when all EventExecutors managed by this EventExecutorGroup have been terminated.

shutdown

@Deprecated
void shutdown()

Deprecated. shutdownGracefully(long, long, TimeUnit) or shutdownGracefully() instead.

Specified by:

shutdown in interface ExecutorService

shutdownNow

@Deprecated
List<Runnable> shutdownNow()

Deprecated. shutdownGracefully(long, long, TimeUnit) or shutdownGracefully() instead.

Specified by:

shutdownNow in interface ExecutorService

next

EventExecutor next()

Returns one of the EventExecutors managed by this EventExecutorGroup.

children

<E extends EventExecutor> Set<E> children()

Returns the unmodifiable set of EventExecutors managed by this EventExecutorGroup.

submit

Future<?> submit(Runnable task)

Specified by:

submit in interface ExecutorService

submit

<T> Future<T> submit(Runnable task,
                   T result)

Specified by:

submit in interface ExecutorService

submit

<T> Future<T> submit(Callable<T> task)

Specified by:

submit in interface ExecutorService

schedule

ScheduledFuture<?> schedule(Runnable command,
                          long delay,
                          TimeUnit unit)

Specified by:

schedule in interface ScheduledExecutorService

schedule

<V> ScheduledFuture<V> schedule(Callable<V> callable,
                              long delay,
                              TimeUnit unit)

Specified by:

schedule in interface ScheduledExecutorService

scheduleAtFixedRate

ScheduledFuture<?> scheduleAtFixedRate(Runnable command,
                                     long initialDelay,
                                     long period,
                                     TimeUnit unit)

Specified by:

scheduleAtFixedRate in interface ScheduledExecutorService

scheduleWithFixedDelay

ScheduledFuture<?> scheduleWithFixedDelay(Runnable command,
                                        long initialDelay,
                                        long delay,
                                        TimeUnit unit)

Specified by:

scheduleWithFixedDelay in interface ScheduledExecutorService