Jul 2, 2018 · I am trying to call a rest api for PUT request in a loop. Each call is a CompletableFuture. Each api call returns an object of type RoomTypes.RoomType I want to collect the responses (both success...

Aug 17, 2018 · I have the need to create an asynchronous, non-blocking task in Java 8, I would like to use CompletableFutures but I'm not sure if it fulfils my needs. To simplify the case, let's say we have an API

Jun 7, 2017 · completable-future; Share. Improve this question. Follow edited Jun 7, 2017 at 15:20. Didier L . 20.6k 10 ...

What is the difference between the get() and join() methods of the CompletableFuture<T> class? Below is the my code: List<String> process() { List<String> messages = Arrays.a...

Sep 13, 2018 · Functionally, the two approaches are more or less the same: you submit your tasks for execution; you don't wait for the result.

Mar 5, 2016 · @OlivierBoissé when you write return futuresList.stream().map(CompletableFuture::join).collect(Collectors.toList()); you are waiting right at this point for completion of all futures.

Imho it is poor design to write CompletableFuture<UserInfo> getUserInfo and CompletableFuture<UserRating> getUserRating(UserInfo) \\ instead it should be UserInfo getUserInfo() and int getUserRating(UserInfo) if I want to use it async and chain, then I can use ompletableFuture.supplyAsync(x => getUserInfo(userId)).thenApply(userInfo => getUserRating(userInfo)) or anything like this, it is more ...

Mar 12, 2015 · A CompletableFuture is not related to the asynchronous action that may eventually complete it.. Since (unlike FutureTask) this class has no direct control over the computation that causes it to be completed, cancellation is treated as just another form of exceptional completion.

Jun 8, 2015 · Both ways are equivalent only when the executor (growSeedExecutor) is used solely for the given task. The first way may lead to following: Another tasks need parallelization, and new executor is created for each task.

May 16, 2019 · in AuditService class , Executor is autowired. that is perfect setup for unit tests. what you have to do is , come up with separate configuration for test and Executor implementation should be a inline executor (you can provide your own implementation which calls runnable.run in the same calling thread).