Groovy question

gistfile1.groovy

I have a method on a class which takes a Closure as an argument:

class Foo {
    void register(Closure handler)
}

The closure represents a handler that will be called back some time in the future

In most cases users will specify the Closure directly when calling it:

new Foo().register { println "in handler" }

But there are other objects that can act as handlers and that I want to be able to pass to register too

E.g. I would like to do something like 

class MyHandler implements Closure {
  void call() {
     println "in handler"
  }
}

But this doesn't work since Closure is not interface. I've tried extending it too, and that doesn't seem to work.

Any ideas?

Peter,

yup, makes sense.