在Vavr中尝试方法参考

Question

我正在使用io.vavr.control.Try并尝试执行Try.run，但我不能使用带参数的方法引用。我该怎么解决这个问题？

PingRequest pingRequest = new PingRequest();
PingCall pingCall = this.client.newPingCall();
//Try<Void> attempt = Try.run(pinCall::call); //A: this will work if call is a no parameter method
//Try<Void> attempt = Try.run(pinCall.call(pingRequest)); //B: I want to call it with parameter but obvious it can't: Required type: CheckedRunnable
Try<Void> attempt = Try.run(() -> pingCall.call(pingRequest)); //C: Idea pass this way, but I don't know if it's correct
attempt.onSuccess...

public PingResponse call(PingRequest input) throws InternalError {...}

Answer 1

如果首先将值包装在Try中，然后将结果值包装为mapTry，并提供一个函数作为方法引用，则可以使用方法引用：

final Try<PingResponse> responseTry = Try.success(pingRequest)
.mapTry(pingCall::call);