#903 ✓wontfix
Kjetil Iversen

Reduce required boilerplate for await/continuations with annotations

Reported by Kjetil Iversen | June 10th, 2011 @ 08:05 AM

It would be cool to annotate a local variable in your controller method with e.g. @Await (or another suitable name) and the runtime would automatically wrap the method call in a Future and use await()

Example:

class MyController {
  public static void action(){
    @Await String result = service.slowOperation("666");
    ...
    render(result);
  }
}

class Service {
  public String slowOperation(String param){...}
}

Comments and changes to this ticket

  • Morten Kjetland

    Morten Kjetland June 10th, 2011 @ 10:25 AM

    • Tag set to await continuations
    • Assigned user set to “Morten Kjetland”

    For this to work it would have to automatically change it into this:

    String result = await(new Job<String>(){
      @Override
      public String doJobWithResult() {
        return service.slowOperation("666");
      }
    }.now());
    

    But there are some problems... if slowOperation where to take arguments, those args would have to be defined with final..

    Maybe it would be possible to give some useful error when enhancing the code..

    I'm not sure this is a good solution.

    maybe it is better to annotate the slowOperation-method instead

  • Morten Kjetland

    Morten Kjetland January 27th, 2012 @ 12:08 PM

    • State changed from “new” to “wontfix”

    as we're moving to 2.0, this is not going to be implemented

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