Vert.x 如何在 lambda function 中向 promise 添加类型参数

Question

I am recently using vert.x framework in java and I am still new to vert.x.

Normally when we initiate future as the following way the SMObj automatically assigned to promise1 promise.

Future<SMObj> future = Future.future(promise1 -> {
      ----
});

What I want to know is, When I use vertx.executeBlocking as following code segment, is there a possible way to set type parameter as SMObj to promise2 (eg: promise2 should be like Promise<SMObj> )

vertx.executeBlocking(promise2->{
          ----code-----
          promise2.complete(SMObj);
      }, blockRes->{ 
          ----code-----
      }
);

Answer 1

Sure you just have to use the diamond operator:

vertx.<SMObj>executeBlocking(promise2 -> {
   promise2.complete(SMObjInstance);
}, blockRes -> {
   ---- code ---
});