io.netty.channel

Interface ChannelFutureListener

All Superinterfaces:

java.util.EventListener, GenericFutureListener<ChannelFuture>

All Known Implementing Classes:

ChannelPromiseAggregator, ChannelPromiseNotifier

public interface ChannelFutureListener
extends GenericFutureListener<ChannelFuture>

Listens to the result of a ChannelFuture. The result of the asynchronous Channel I/O operation is notified once this listener is added by calling ChannelFuture.addListener(GenericFutureListener).

Return the control to the caller quickly

GenericFutureListener.operationComplete(Future) is directly called by an I/O thread. Therefore, performing a time consuming task or a blocking operation in the handler method can cause an unexpected pause during I/O. If you need to perform a blocking operation on I/O completion, try to execute the operation in a different thread using a thread pool.

Field Summary

Fields

Modifier and Type	Field and Description
static ChannelFutureListener	CLOSE A ChannelFutureListener that closes the Channel which is associated with the specified ChannelFuture.
static ChannelFutureListener	CLOSE_ON_FAILURE A ChannelFutureListener that closes the Channel when the operation ended up with a failure or cancellation rather than a success.
static ChannelFutureListener	FIRE_EXCEPTION_ON_FAILURE A ChannelFutureListener that forwards the Throwable of the ChannelFuture into the ChannelPipeline.

Method Summary

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

operationComplete

Field Detail

CLOSE

static final ChannelFutureListener CLOSE

A ChannelFutureListener that closes the Channel which is associated with the specified ChannelFuture.

CLOSE_ON_FAILURE

static final ChannelFutureListener CLOSE_ON_FAILURE

A ChannelFutureListener that closes the Channel when the operation ended up with a failure or cancellation rather than a success.

FIRE_EXCEPTION_ON_FAILURE

static final ChannelFutureListener FIRE_EXCEPTION_ON_FAILURE

A ChannelFutureListener that forwards the Throwable of the ChannelFuture into the ChannelPipeline. This mimics the old behavior of Netty 3.