org.springframework.util.concurrent

Class CompletableToListenableFutureAdapter<T>

java.lang.Object

org.springframework.util.concurrent.CompletableToListenableFutureAdapter<T>

All Implemented Interfaces:

java.util.concurrent.Future<T>, ListenableFuture<T>

@UsesJava8
public class CompletableToListenableFutureAdapter<T>
extends java.lang.Object
implements ListenableFuture<T>

Adapts a CompletableFuture into a ListenableFuture.

Since:

4.2

Author:

Sebastien Deleuze

Field Summary

Fields

Modifier and Type	Field and Description
private ListenableFutureCallbackRegistry<T>	callbacks
private java.util.concurrent.CompletableFuture<T>	completableFuture

Constructor Summary

Constructors

Constructor and Description
CompletableToListenableFutureAdapter(java.util.concurrent.CompletableFuture<T> completableFuture)

Method Summary

Modifier and Type	Method and Description
void	addCallback(ListenableFutureCallback<? super T> callback) Registers the given callback to this ListenableFuture.
void	addCallback(SuccessCallback<? super T> successCallback, FailureCallback failureCallback) Registers the given success and failure callbacks to this ListenableFuture.
boolean	cancel(boolean mayInterruptIfRunning)
T	get()
T	get(long timeout, java.util.concurrent.TimeUnit unit)
boolean	isCancelled()
boolean	isDone()

Methods inherited from class java.lang.Object

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

Field Detail

completableFuture

private final java.util.concurrent.CompletableFuture<T> completableFuture

callbacks

private final ListenableFutureCallbackRegistry<T> callbacks

Constructor Detail

CompletableToListenableFutureAdapter

public CompletableToListenableFutureAdapter(java.util.concurrent.CompletableFuture<T> completableFuture)

Method Detail

addCallback

public void addCallback(ListenableFutureCallback<? super T> callback)

Description copied from interface: ListenableFuture

Registers the given callback to this ListenableFuture. The callback will be triggered when this Future is complete or, if it is already complete, immediately.

Specified by:

addCallback in interface ListenableFuture<T>

Parameters:

callback - the callback to register

addCallback

public void addCallback(SuccessCallback<? super T> successCallback,
                        FailureCallback failureCallback)

Description copied from interface: ListenableFuture

Registers the given success and failure callbacks to this ListenableFuture. The callback will be triggered when this Future is complete or, if it is already complete immediately. This is a Java 8 lambdas compliant alternative to ListenableFuture.addCallback(ListenableFutureCallback).

Specified by:

addCallback in interface ListenableFuture<T>

Parameters:

successCallback - the success callback to register

failureCallback - the failure callback to register

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface java.util.concurrent.Future<T>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface java.util.concurrent.Future<T>

isDone

public boolean isDone()

Specified by:

isDone in interface java.util.concurrent.Future<T>

get

public T get()
      throws java.lang.InterruptedException,
             java.util.concurrent.ExecutionException

Specified by:

get in interface java.util.concurrent.Future<T>

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

get

public T get(long timeout,
             java.util.concurrent.TimeUnit unit)
      throws java.lang.InterruptedException,
             java.util.concurrent.ExecutionException,
             java.util.concurrent.TimeoutException

Specified by:

get in interface java.util.concurrent.Future<T>

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

java.util.concurrent.TimeoutException