SucceededFuture (Netty API Reference (4.2.1.Final))

java.lang.Object
- io.netty.util.concurrent.AbstractFuture<V>
- - io.netty.util.concurrent.CompleteFuture<V>
  - - io.netty.util.concurrent.SucceededFuture<V>

All Implemented Interfaces:

Future<V>, java.util.concurrent.Future<V>
```
public final class SucceededFuture<V>
extends CompleteFuture<V>
```
The CompleteFuture which is succeeded already. It is recommended to use EventExecutor.newSucceededFuture(Object) instead of calling the constructor of this future.

Constructor Summary

Constructors
Constructor Description

SucceededFuture(EventExecutor executor, V result)
Creates a new instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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.

Methods inherited from class io.netty.util.concurrent.CompleteFuture
addListener, addListeners, await, await, await, awaitUninterruptibly, awaitUninterruptibly, awaitUninterruptibly, cancel, executor, isCancellable, isCancelled, isDone, removeListener, removeListeners, sync, syncUninterruptibly

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
  - SucceededFuture
```
public SucceededFuture(EventExecutor executor,
                       V result)
```
    Creates a new instance.
    
    Parameters:
    
    executor - the EventExecutor associated with this future
- 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.
  - 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 rely on the returned null value.