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From Keith Suderman <>
Subject Re: Emulating method overloading with closures?
Date Wed, 15 Apr 2015 01:25:12 GMT
You can specify default values for parameters in Groovy, so you should be able to achieve what
you want with

def foo = {String args, boolean x, boolean y, boolean z=true -> ... }

foo("bar", true, true)
foo("bar", true, true, false)


On Apr 14, 2015, at 8:19 PM, Henrik Martin <> wrote:

> Hi. I have a Groovy method that is overloaded, and I'm trying to achieve something similar
with closures. The methods look something like this:
> int foo(String args, boolean x, boolean y) { ... }
> int foo(String args, boolean x, boolean y, boolean z) { ... }
> The first method basically just forwards to the overloaded version, passing a 'z' argument
with a default value. Is there any way I can convert these two methods to two closures in
the same class in a similar fashion as method overloading? The problem I run into seems to
be that closures are object instances, so I can't really have two closures with the same name
in the same class. Maybe using closures isn't appropriate in this case? What would be a "Groovier
way" of doing this? The reason I tried the closure approach is the "method as an object instance"
paradigm fits pretty well with the particular project I'm working on. But I'm sure there's
a better way of doing this...
> Thanks,
> -H

Research Associate
Department of Computer Science
Vassar College
Poughkeepsie, NY

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