All Implemented Interfaces:

java.util.concurrent.Future<V>

public final class FailedFuture<V>
extends CompleteFuture<V>

• Constructor Summary

  Constructors

  Constructor and Description
  FailedFuture (EventExecutor executor, java.lang.Throwable cause) Creates a new instance.

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  java.lang.Throwable	cause () Returns the cause of the failed I/O operation if the I/O operation has failed.
  V	getNow () Return the result without blocking.
  boolean	isSuccess () Returns true if and only if the I/O operation was completed successfully.
  Future<V>	sync () Waits for this future until it is done, and rethrows the cause of the failure if this future failed.
  Future<V>	syncUninterruptibly () Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

  • Methods inherited from class io.netty.util.concurrent.CompleteFuture

    addListener, addListeners, await, await, await, awaitUninterruptibly, awaitUninterruptibly, awaitUninterruptibly, cancel, executor, isCancellable, isCancelled, isDone, removeListener, removeListeners

  • Methods inherited from class io.netty.util.concurrent.AbstractFuture

    get, get

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • FailedFuture

    public FailedFuture(EventExecutor executor,
     java.lang.Throwable cause)

    Creates a new instance.

    Parameters:

    executor - the EventExecutor associated with this future

    cause - the cause of failure

• Method Detail

  • cause

    public java.lang.Throwable cause()

    Description copied from interface: Future
    Returns the cause of the failed I/O operation if the I/O operation has failed.

    Returns:

    the cause of the failure. null if succeeded or this future is not completed yet.

  • isSuccess

    public boolean isSuccess()

    Description copied from interface: Future
    Returns true if and only if the I/O operation was completed successfully.

  • sync

    public Future<V> sync()

    Description copied from interface: Future
    Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

    Overrides:

    sync in class CompleteFuture<V>

  • syncUninterruptibly

    public Future<V> syncUninterruptibly()

    Description copied from interface: Future
    Waits for this future until it is done, and rethrows the cause of the failure if this future failed.

    Overrides:

    syncUninterruptibly in class CompleteFuture<V>

  • getNow

    public V getNow()

    Description copied from interface: Future
    Return the result without blocking. If the future is not done yet this will return null. As it is possible that a null value is used to mark the future as successful you also need to check if the future is really done with Future.isDone() and not relay on the returned null value.