Nrthugu

Let's say have I have an annotation that's to be used like this:

public void foo (@IntParam int quantity, @FooParam Foo bar) {

  ...

}

I would like to call this method, access the params from an object and pass it like this:

public void invokeFoo (Method fooMethod, Map<String, String> context) throws ... {

  List<Object> params = Arrays.stream(fooMethod.getAnnotations()).map(annos -> {

     if (annos[0] instanceof IntParam) {

       return context.get( ... ); // <-

     } else if (annos[0] instanceof FooParam) {

       return new Foo(context); // <-

     }

  }).collect(Collectors.toList());

  fooMethod.invoke(params.toArray());

}

The problem with this implentation is that I need to edit 2 different files if I want to add new types of params, which I would like to avoid for several reasons.Is there a way to write those lines in the same annotation file ?. The only way would be using a static/default method on the interface but either way this would type poorly.

Any other way ?