Getting the caller name.

Question

Hi All.
I waned to know if thre are any ways I can know the caller class/object type from with in a code.
I mean if there is a method foo() inside, a class A.
if there are 2 classes B and C extend A; can I write few lines of code inside A.foo() to know that the invoker of method foo is an instance of class B or C??
Any pointers will be helpful.
Rgds

Answer 1

Use a stack trace. Keep in mind this is expensive performance-wise. Here's some code:StackTraceElement [] st=new Exception().getStackTrace();
if(st==null)
    //Do something--some runtime environments don't support stack traces
System.out.println("The caller is "+st[1]); That should do it.