[英]How to complete a CompletableFuture<Void>?
I want a CompletableFuture that only signals the completion (eg I don't have a return value). 我想要一个仅表示完成的CompletableFuture(例如,我没有返回值)。
I can instantiate the CompletableFuture as: 我可以将CompletableFuture实例化为:
CompletableFuture<Void> future = new CompletableFuture<> ();
But what should I feed into the complete method? 但是我应该为完整的方法提供什么? For example, I can't do
例如,我做不到
future.complete(new Void());
As you've noticed, you cannot instantiate a Void
object like this. 正如您所注意到的,您无法像这样实例化
Void
对象。 Since you don't care about the future's value, you could just complete it with null
: 既然你不关心未来的价值,你可以用
null
来完成它:
future.complete(null);
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