FailedFuture (milky-concurrent 1.0.9 API)

java.lang.Object
- cn.sliew.milky.concurrent.AbstractFuture<V>
- - cn.sliew.milky.concurrent.CompleteFuture<V>
  - - cn.sliew.milky.concurrent.FailedFuture<V>

All Implemented Interfaces:

Future<V>, Future
```
public class FailedFuture<V>
extends CompleteFuture<V>
```
The CompleteFuture which is failed already.

Constructor Summary

Constructors
Constructor Description

FailedFuture(Throwable cause)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Throwable`	`cause()`	Returns the cause of the failed operation if the operation has failed.
`V`	`getNow()`	Return the result without blocking.
`boolean`	`isSuccess()`	Returns `true` if and only if the 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.

Methods inherited from class cn.sliew.milky.concurrent.CompleteFuture
addListener, await, await, cancel, isCancelled, isDone, removeListener

Methods inherited from class cn.sliew.milky.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(Throwable cause)
```
- Method Detail
  - sync
```
public Future<V> sync()
               throws InterruptedException
```
    Description copied from interface: Future
    
    Waits for this future until it is done, and rethrows the cause of the failure if this future failed.
    
    Specified by:
    
    sync in interface Future<V>
    
    Overrides:
    
    sync in class CompleteFuture<V>
    
    Throws:
    
    InterruptedException
  - isSuccess
```
public boolean isSuccess()
```
    Description copied from interface: Future
    
    Returns true if and only if the operation was completed successfully.
  - cause
```
public Throwable cause()
```
    Description copied from interface: Future
    
    Returns the cause of the failed operation if the operation has failed.
    
    Returns:
    
    the cause of the failure. null if succeeded or this future is not completed yet.
  - 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.