Pointer/reference on method

[ollej]

Hi,

I would like to get as a parameter in a method a pointer/reference on another metod to call it later.

I know how to achieve this in c++, but I'm beginner in java...

Thanx for any help
ollej

 

[bygones]

sorry - as far as i know, there is no possibilty to get a reference on a method in java.
May I ask for what you would need that ?

I dont know if this is helpful, but with reflections you can get all / specific methods of a class (which is not that easy).....

 

[Roar]

It is not very difficult.
If I understood it correctly you want to give a method as a parameter to another method !?
use java.lang.reflect.*; classes, so you can write sth. like this:

import java.lang.reflect.*;

// ..blah blah
public void inokeMethod(Method m, Class overlaying, Object[] parameters) {
Object returnValue = m.invoke(overlaying, parameters);
}

@deathbyaclown: bääh :bae: :bae:

 

[bygones]

???:L Why bäähhh,

Ok, Roar - if its that easy - I guess you can explain how to get the "Method" object, the "Class" Object and so on :wink:

 

[Roar]

@deathbyaclown: I just worked with it by creating a plug-in mechanism.

Class c = Class.forName("AnyClass");
Method m = c.getMethod("getAnyString", null);
String s = (String) m.invoke(c.newInstance()  ,null);

don't think I'm stupid :noe:

 

[bygones]

don't think I'm stupid :noe:

I would not dare - but I'm glad you've done it

 

[Roar]

Yeeeh sure :x ...
boah das englisch gelaber nervt. I've just recieved my English school test, ich hab ne glattes C... :lol:

 

[bygones]

@Roar:
No honestly !
I just think reflection for a Java beginner is a quite heavy task....

 

[Roar]

What does that mean now? what's "no honestly" ?

 

[bygones]

ok - kein englisch.
Ich meinte, dass ich es ehrlich meinte, dass ich es nicht wagen würde dich für dumm zu halten (dein "Yeeh sure" klang nicht freundlich, daher) !

 

[Roar]

achso. sag das doch :lol:
ich find das nicht so schwierig. wenn man mal in die API schaut is das doch alles ganz einfach:

Java API[/url]]
Constructor getConstructor(Class[] parameterTypes)
Field[] getDeclaredFields()

und so weiter...