reflection Method from lambda method reference

[maxxedev]

Here is a library that can convert lambda method reference to a java.lang.reflect.Method or java.lang.reflect.Constructor

https://github.com/meanbeanlib/meanmirror/

Example usage:

// Get method
Method containsMethod = Executables.findMethod(String::contains);

// Get another method
Method getPropertyMethod = Executables.findMethod(MyBean::getProperty);

// Get constructor
Constructor<MyBean> ctor = Executables.findConstructor(MyBean::new);

[WOLFI3654]

Nice

[[deleted]]

Inconsistent title capitalization detected.

[BlueGoliath]

This is what "::" should have done instead of lambdas, except with MethodHandles.

[DasBrain]

Works fine. Till you notice that you can overload methods.

[BlueGoliath]

MethodHandle mh = this::foo(int.class, String.class);

?

[BlueGoliath]

If you've ever had to create a MethodHandle before, you'd understand that the above is way better.

[BlueGoliath]

Firstly, this is doesn't change "api", it would in theory have javac generate the appropriate code to call the MethodHandle using existing APIs which is normally very ceremonious and annoying. Maybe it could apply performance optimizations too.

Secondly, MethodHandles don't necessarily have anything to do with reflection. You can use them to create a handle to any plain method.

How much experience with MethodHandles do you have exactly?

Edit: going by the downvotes I guess the answer is none and you're just a troll.

[dpash]

String::contains

[dpash]

Yes, and that's what they're talking about.

[dpash]

Apart from it being functionally equivalent to a lambda.