org.apache.flink.runtime.concurrent

Interface CompletableFuture<T>

Type Parameters:

T - type of the future's value

All Superinterfaces:

Future<T>

All Known Subinterfaces:

FutureUtils.ConjunctFuture<T>

All Known Implementing Classes:

FlinkCompletableFuture

public interface CompletableFuture<T>
extends Future<T>

Flink's completable future abstraction. A completable future can be completed with a regular value or an exception.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	complete(T value) Completes the future with the given value.
boolean	completeExceptionally(Throwable t) Completes the future with the given exception.

Methods inherited from interface org.apache.flink.runtime.concurrent.Future

cancel, exceptionally, exceptionallyAsync, get, get, getNow, handle, handleAsync, isDone, thenAccept, thenAcceptAsync, thenApply, thenApplyAsync, thenCombine, thenCombineAsync, thenCompose, thenComposeAsync

Method Detail

complete

boolean complete(T value)

Completes the future with the given value. The complete operation only succeeds if the future has not been completed before. Whether it is successful or not is returned by the method.

Parameters:

value - to complete the future with

Returns:

true if the completion was successful; otherwise false

completeExceptionally

boolean completeExceptionally(Throwable t)

Completes the future with the given exception. The complete operation only succeeds if the future has not been completed before. Whether it is successful or not is returned by the method.

Parameters:

t - the exception to complete the future with

Returns:

true if the completion was successful; otherwise false