GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/2554
[FLINK-4361] Introduce Flink's own future abstraction
Flink's future abstraction whose API is similar to Java 8's
CompletableFuture.
That's in order to ease a future transition to this class once we ditch
Java 7.
The current set of operations comprises:
- isDone to check the completion of the future
- get/getNow to obtain the future's value
- cancel to cancel the future (best effort basis)
- thenApplyAsync to transform the future's value into another value
- thenAcceptAsync to register a callback for a successful completion of the
future
- exceptionallyAsync to register a callback for an exception completion of
the future
- thenComposeAsync to transform the future's value and flatten the returned
future
- handleAsync to register a callback which is called either with the
regular result
or the exceptional result
Additionally, Flink offers a CompletableFuture which can be completed with
a regular
value or an exception:
- complete/completeExceptionally
Complete FlinkCompletableFuture exceptionally with a CanellationException
upon cancel
This closes #2472.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink futuresMaster
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2554.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2554
----
commit f7919121411f054396940af9c70952d4121baf52
Author: Till Rohrmann <trohrm...@apache.org>
Date: 2016-09-02T19:13:34Z
[FLINK-4361] Introduce Flink's own future abstraction
Flink's future abstraction whose API is similar to Java 8's
CompletableFuture.
That's in order to ease a future transition to this class once we ditch
Java 7.
The current set of operations comprises:
- isDone to check the completion of the future
- get/getNow to obtain the future's value
- cancel to cancel the future (best effort basis)
- thenApplyAsync to transform the future's value into another value
- thenAcceptAsync to register a callback for a successful completion of the
future
- exceptionallyAsync to register a callback for an exception completion of
the future
- thenComposeAsync to transform the future's value and flatten the returned
future
- handleAsync to register a callback which is called either with the
regular result
or the exceptional result
Additionally, Flink offers a CompletableFuture which can be completed with
a regular
value or an exception:
- complete/completeExceptionally
Complete FlinkCompletableFuture exceptionally with a CanellationException
upon cancel
This closes #2472.
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