Re: [aspectj-users] Tracing a method call

[Matthew Webster <matthew_webster@xxxxxxxxxx>]

Mohan,

I am also at a loss as to what you are
trying to do.
- Normally one uses the execution()
pointcut with before/after advice and pick out every (useful) method in
the program. That way you can build up the flow along with the context
e.g. arguments
- With the call() pointcut you can use
thisJoinPoint to identify the target method and thisEnclosingJoinPointStaticPart
to identify the invoker
- The call() pointcut can be useful
when you don't control the target class and hence the join point matched
by execution() is not available for weaving.

Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM Hursley Park, Winchester,  SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal) 
Email: Matthew Webster/UK/IBM @ IBMGB, matthew_webster@xxxxxxxxxx
http://w3.hursley.ibm.com/~websterm/

"Mohan Radhakrishnan" <radhakrishnan.mohan@xxxxxxxxx>
Sent by: aspectj-users-bounces@xxxxxxxxxxx

17/12/2006 05:40

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Subject	Re: [aspectj-users] Tracing a method call

Hi,
        I was thinking of tracing
the flow of method calls from beginning to end.
(beginning)
method 1 -->
               method
1.1
               method
1.2 -->
               
                   method
1.2.1-->
               
                     
                  method 1.2.1.1(end)
 
Is it possible to bore into the api to trace something
like this if we know only that method 1 exists ?
 
 
Thanks,
Mohan

 
On 12/3/06, Alexandru Popescu <the.mindstorm.mailinglist@xxxxxxxxx>
wrote: 
On 12/3/06, Mohan Radhakrishnan <radhakrishnan.mohan@xxxxxxxxx
> wrote:
> Hi,
>      Can we trace a method call through the codebase
using pointcuts like
> this
>
>   pointcut callStaticMethod ():
>          call (* com.test.MyObject.callStaticMethod
(..));
>
>   before(): callStaticMethod() {
>    System.out.println( thisJoinPointStaticPart.
>                    getSourceLocation().getWithinType()
);
>    System.out.println( thisJoinPointStaticPart. 
>                    getSignature().getDeclaringTypeName()
);
>   }
>
>
> Assume that there is a call line like this. method1 -> method2
-> method3
> etc. We don't have annotations declared on these 
> methods.
>
> If each method calls only one other method then we can trace the call
line ?
> Is this possible ?
>

I am not sure I understand what you intend to do: to track method3
invocation only when this happens in the flow of method2 called from
method1? If so, then look for the cflow/cflowbelow pointcuts.

./alex
--
.w( the_mindstorm )p.

> Thanks,
> Mohan
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>
>
>
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