Support for Java double colon :: ?

[injo11]

I wonder if there is any, or planned, or workaround, for referencing Java methods. For example, we would like to do (in Python):

from mypackage import A
from mypackage import B

a = A()
b = B()
func = a.func1
b.setFunction(func)

where a and b are JPype Java objects and func1 is a method on the Java object. b.setFunction() takes a Java lambda. In Java it would look like:

a = new A()
b = new B()
func = A::func1
b.setFunction(func)

[Thrameos]

Isn't this already integrated. Java funtions are Python methods. If referenced from an object they are bound methods. Methods and bound methods automatically cast to FunctionalInterface.

Thus the code above is exactly as you showed in Python.

If you want a typed funtional use the @ operator.

func = (IntSupplier)@ a.func1

Note a::func1 is a.func1 not A.func1. Type::func is an unbound method that takes the hidden this as first argument.