Groovy: Named parameter constructors

Question

I found really cool that one can do:

class Foo {
    String name
}

def foo = new Foo(name:"Test")

But, it only works when my file name matches the class name. If I have a file with a bunch of classes like:

class AllClassesInOneFile {
    class Bar {}
    class Foo {
      String name
    }
}

def foo = new Foo(name:"Test")

Now, it does not work anymore I get a java.lang.IllegalArgumentException: wrong number of arguments

I wonder if it is still possible to invoke named parameter argument style with scripts and nested classes.

Regards

Answer 1

Seems like Groovy needs explicit reference to an instance of the outer class:

class Baz {
    class Bar {}
    class Foo {
      String name
    }
}

def baz = new Baz()

def f = new Baz.Foo(baz, [name: "john doe"])

assert f.name == "john doe"

Answer 2

Non-static nested object can't exist without instance of the outer class. The same in java. Just change nested object to static.