RE: Know the runtime class

Thanks for the reply.
Actually my problem will be solved even if I get the set S as you have
mentioned. But how do I get the set S?

Is it possible to know the implementors of a given interface using
JavaClass? Or should I use a different API? Then using this list I can
check if the object of A is an instance of B.

Thanks,
Srikanth

-----Original Message-----
From: Andrew Huntwork [mailto:[email protected]] 
Sent: 02 August 2004 15:40
To: BCEL Users List
Subject: Re: Know the runtime class

I'm pretty sure that you're describing the pointer aliasing problem, 
which is in general undecidable.  There are a lot of heuristic and 
approximation algorithms that compiler folks use, like Type-Based alias 
analysis, which I think comes in 2 flavors, flow sensitive and 
flow-insensitive.

basically, don't expect to discover that the concrete type of the field 
of type A in C is B.  Expect to discover that the concrete type of A is 
in a set S which happens to contain B.

hopefully, i'm misinterpreting your question and you're really asking 
about something that's solvable.  good luck :)

Chakravarthy, Srikanth wrote:
> Hi,
> I am creating a cross reference of classes.
> If the classes have direct relations then I get all the related
classes.
> If there is an object of an interface that will be assigned the value
of
> the implementing class then I am not able to get that class as one of
> the references.
> 
> For example: class B implements Interface A.
> In another class C, I have an object of A. Using reflection, I have
> created the object of B and assigned to object of A. 
> 
> Now, when I run my program to check the cross references for class C,
I
> do not get class B in the list as it is not directly involved with
class
> C.
> 
> Is there any way to know the instance of the object of A in the class
C?
> Which API method should I use for this?
> 
> Any help is deeply appreciated.
> 
> Thanks
> Srikanth
> 
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