ConcurrentUtils.ConstantFuture (org.apache.directory.api_api-all_sources-and-javadoc 2.1.1 API)

java.lang.Object
- org.apache.commons.lang3.concurrent.ConcurrentUtils.ConstantFuture<T>

Type Parameters:

T - the type of the value wrapped by this class

All Implemented Interfaces:

Future<T>

Enclosing class:

ConcurrentUtils
```
static final class ConcurrentUtils.ConstantFuture<T>
extends Object
implements Future<T>
```
A specialized Future implementation which wraps a constant value.

Constructor Summary

Constructors
Constructor Description

ConstantFuture(T value)
Creates a new instance of ConstantFuture and initializes it with the constant value.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`cancel(boolean mayInterruptIfRunning)`	The cancel operation is not supported.
`T`	`get()`	This implementation just returns the constant value.
`T`	`get(long timeout, TimeUnit unit)`	This implementation just returns the constant value; it does not block, therefore the timeout has no meaning.
`boolean`	`isCancelled()`	This implementation always returns false; there is no background process which could be cancelled.
`boolean`	`isDone()`	This implementation always returns true because the constant object managed by this `Future` implementation is always available.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ConstantFuture
```
ConstantFuture(T value)
```
    Creates a new instance of ConstantFuture and initializes it with the constant value.
    
    Parameters:
    
    value - the value (may be null)
- Method Detail
  - isDone
```
public boolean isDone()
```
    This implementation always returns true because the constant object managed by this Future implementation is always available.
    
    Specified by:
    
    isDone in interface Future<T>
  - get
```
public T get()
```
    This implementation just returns the constant value.
    
    Specified by:
    
    get in interface Future<T>
  - get
```
public T get(long timeout,
             TimeUnit unit)
```
    This implementation just returns the constant value; it does not block, therefore the timeout has no meaning.
    
    Specified by:
    
    get in interface Future<T>
  - isCancelled
```
public boolean isCancelled()
```
    This implementation always returns false; there is no background process which could be cancelled.
    
    Specified by:
    
    isCancelled in interface Future<T>
  - cancel
```
public boolean cancel(boolean mayInterruptIfRunning)
```
    The cancel operation is not supported. This implementation always returns false.
    
    Specified by:
    
    cancel in interface Future<T>