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Re: methodhandles lookup

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Hi,


If you know the signature, in the sense of knowing the
classes of the formal parameter, you can call
    getDeclaredMethod() [1]
Instead of
    getDeclaredMethods()

So in case of your foo example below, to find the argument
less bar() method, call
     getDeclaredMethod("bar", new Class[]{})
to find the bar() method with primitive integer type, call
     getDeclaredMethod("bar", new Class[]{Integer.TYPE})

Yes caching is a good idea in my opinion.

Bye

[1] 
https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#getDeclaredMethod%28java.lang.String,%20java.lang.Class...%29

Philipp Kraus schrieb:
> The problem is a class like
> class foo
> {
>       public void bar()
>       {
>            System.out.println("test");
>       }
>
>       public void bar( int x )
>       {
>            System.out.println("test " + x);
>       }
> }
>
> So my question is, how can I create a dynamic binding
 > on method handles depend on the signature?

> And can I cache the method handles / is it a good choice
 > of caching all handles?

> In my case I know during runtime the concrete signature
 > of the method, "foo/bar" is executed and on this
 > time I know all arguments of the method, so I can
 > create at this point the binding. How can I do this
 > in a fast way?

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methodhandles lookup Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2016-01-22 00:19 -0800
  Re: methodhandles lookup Jeff Higgins <jeff@invalid.invalid> - 2016-01-22 08:57 +0000
  Re: methodhandles lookup Jeff Higgins <jeff@invalid.invalid> - 2016-01-22 11:01 +0000
    Re: methodhandles lookup Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2016-01-22 03:13 -0800
      Re: methodhandles lookup Jeff Higgins <jeff@invalid.invalid> - 2016-01-22 11:43 +0000
        Re: methodhandles lookup Jeff Higgins <jeff@invalid.invalid> - 2016-01-22 12:03 +0000
          Re: methodhandles lookup Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2016-01-24 01:59 -0800
      Re: methodhandles lookup Jeff Higgins <jeff@invalid.invalid> - 2016-01-22 12:16 +0000
        Re: methodhandles lookup Jan Burse <janburse@fastmail.fm> - 2016-01-22 17:12 +0100
  Re: methodhandles lookup Martin Gregorie <martin@address-in-sig.invalid> - 2016-01-22 11:27 +0000
    Re: methodhandles lookup Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2016-01-24 01:56 -0800
  Re: methodhandles lookup Jan Burse <janburse@fastmail.fm> - 2016-01-22 16:49 +0100

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