Lookup the name of class where a methode is called from?

Hi
i have an object A and an object B. From A i call a methode in B and within that methode i need to find out ot which type the object is that called the methode.
Is there any methode to find out which object is calling the methode and to find out of which class type that object is (resulting in a String containing the name of that class)?
Thanks for your help.

I can think of two ways to do this. First, you could get the current StackTrace and parse it up. You'd be looking for the stack trace element immediately before the current method is called if I understand your post correctly. If you are using JDK 1.3.1 or below, you'd have to print the StackTrace to a String. If you are using JDK 1.4, there is a new Object called StackTraceElement. You can get an array of them from an Exception object.
Second, you could use AspectJ to crosscut code into your application. AspectJ is complicated so I will just point you to their website for more information: http://www.aspectj.org.
Dave.

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