CompletionStage
Interface CompletionStage<T>
- All Known Implementing Classes:
- CompletableFuture
public interface CompletionStage<T>
A stage of a possibly asynchronous computation, that performs an action or computes a value when another CompletionStage completes. A stage completes upon termination of its computation, but this may in turn trigger other dependent stages. The functionality defined in this interface takes only a few basic forms, which expand out to a larger set of methods to capture a range of usage styles:
- The computation performed by a stage may be expressed as a Function, Consumer, or Runnable (using methods with names including apply, accept, or run, respectively) depending on whether it requires arguments and/or produces results. For example,
stage.thenApply(
