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>

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

Adapts a CompletableFuture or CompletionStage into a Spring ListenableFuture.

Since:

4.2

Author:

Sebastien Deleuze, Juergen Hoeller

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) Create a new adapter for the given CompletableFuture.
CompletableToListenableFutureAdapter(java.util.concurrent.CompletionStage<T> completionStage) Create a new adapter for the given CompletionStage.

Method Summary

Modifier and Type	Method and Description
void	addCallback(ListenableFutureCallback<? super T> callback) Register the given ListenableFutureCallback.
void	addCallback(SuccessCallback<? super T> successCallback, FailureCallback failureCallback) Java 8 lambda-friendly alternative with success and failure callbacks.
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.CompletionStage<T> completionStage)

Create a new adapter for the given CompletionStage.

Since:

4.3.7

CompletableToListenableFutureAdapter

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

Create a new adapter for the given CompletableFuture.

Method Detail

addCallback

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

Description copied from interface: ListenableFuture

Register the given ListenableFutureCallback.

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

Java 8 lambda-friendly alternative with success and failure callbacks.

Specified by:

addCallback in interface ListenableFuture<T>

Parameters:

successCallback - the success callback

failureCallback - the failure callback

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