Question

我正在尝试熟悉AWS Workflows和Promises。我有一个清单：

(int)Math.Round()

评估功能：

List<Promise<ClassA>> classA= someSet.stream()
                  .filter()
                  .map(/*Insert call activity*/)
                  .collect(Collectors.toList());

Promise<Void> waitForPromises = new AndPromise(
              doSomething(classA),
              .
              .Some other functions);

facts = /*do Some processing*/
Promise<ClassB<EnumA>> actions = ActivityB.evaluate(facts, waitForPromises);
performActions(actions, facts, classA);

现在如果我没有修改classA中的值，我可以将performActions的定义改为： evaluate(Facts facts, Promise<?>... waitFor);

但是现在我需要确保在调用performActions之前performActions(Promise<ClassB<EnumA>> actions, Facts facts, @Wait List<Promise<ClassA>> classA)由于在classA中执行的操作而具有更新的值。

Answer 1

这会有用吗？

List<Promise<ClassA>> classA= someSet.stream()
              .filter()
              .map(/*Insert call activity*/)
              .collect(Collectors.toList());

Promise<List<ClassA>> somethingP = doSomething(classA)
Promise<Void> waitForPromises = new AndPromise(
          somethingP,
          .
          .Some other functions);

facts = /*do Some processing*/
Promise<ClassB<EnumA>> actions = ActivityB.evaluate(facts, waitForPromises);

performActions(actions, facts, somethingP);

perfomActions的签名是：

performActions(Promise<ClassB<EnumA>> actions, Facts facts,
              Promise<List<ClassA>> somethingP);

编辑：更新了doSomething以返回Promise＆lt; List＆lt; ClassA＆gt;＆gt;

使用AWS Workflows：在执行函数之前等待承诺完成。

1 个答案: