Reflection on invoking methods

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From: Aven
Date: Tue, 29 Mar 2005 02:45

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Hi,
I am trying to invoke methods using reflection, i.e., given an object, a 
method name
 and an array of arguments, find out a Method object that corresponds to the 
method,
then invoke the method. Problems arise as follows.
1. How to deal with primitive argument types ?
   for example, if the method is foo(int a, int b);
  the arguments are passed as new Object[]{10,20},
  however, the method was not found because of autoboxing.
  ( I have tried redefine foo as foo(Integer a, Integer b). That works 
fine. )
 How to pass the primitive types?

2. How to search varargs methods smartly?
  Currently I have to get all methods using Class.getMethods()
  Then check the parametertypes of every method. It is not efficient.

Thank you very much!

-Aven

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