英文:
How to use two independent services and use the result of those service as Input of another service using ComputableFuture concept?
问题
我正在尝试使用和理解Java 8的CompletableFuture概念。请帮我理解是否有一种方法可以按照下面的场景进行实现。
场景描述：
我有一个汽车存储库和一个用户存储库。
我有个别的服务，比如：**getUserData（返回List<User>）和getCarData（返回List<Car>）**来获取这些值。
现在我创建了另一个名为CarBooking的存储库，它有一个名为createNewBooking的服务，该服务应该接受List<User>和List<Car>作为输入。
是否有办法使用CompletableFuture创建一个链式方法，将这些服务/任务组合在一起触发。
就像CompletableFuture.supplyAsync(this::getUserData)......
我不太清楚如何加入另一个服务并将第一个和第二个值用作BiConsumer传递给第三个服务。
非常感谢您的帮助。
英文:
I am trying to use and understand Java8 CompletableFuture concept. Please help me to under if there is a way I can implement by below scenario.
Scenario Description:
I have a Car repository and a user repository.
I have individual service like: getUserData (returns List<User>) and getCarData (returns List<Car>) to fetch me the values.
Now I have created another repository called: CarBooking and it has a service called createNewBooking, which should accept List<User> and List<Car> as input.
Is there any way that I can create a chained method using CompletableFuture which can combine these services/tasks to be triggered.
Like CompletableFuture.supplyAsync(this::getUserData).....
I am not able to understand how can I join another service and use first and second value to third service as BiConsumer.
Help is much appreciated.
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