RE: [aspectj-users] toString Aspect aspect browser

["DiFrango, Ron" <ron.difrango@xxxxxxxxxxxxxx>]

Jon,

I had not thought of that case, when I tested it I assumed that all of your
classes implemented toString().  Since you are essentially trying implement
toString() for all of your classes you could utilize the introduction
feature of aspectj to accomplish the same task.  I have not tried, but I am
going for my own curiosity.  IF I complete it, I will let you know.

Thanks,

Ron DiFrango


-----Original Message-----
From: jon.pallas@xxxxxxxxxxx [mailto:jon.pallas@xxxxxxxxxxx] 
Sent: Thursday, July 24, 2003 11:57 AM
To: aspectj-users@xxxxxxxxxxx
Cc: DiFrango, Ron
Subject: RE: [aspectj-users] toString Aspect aspect browser


Thanks Ron

I now see that i should have used execution() rather than call()


The problem is that if

public String toString()  if is implemented only in java.lang,Object;

The aspect cant find it as a joinpoint.

if i implement toString() in my class

public String toString() { return "You wont see this because the aspect 
will get there first";}

It is found by the asect and i get my nice string out.


Is there a way around this??

Thanks again 
Jon











"DiFrango, Ron" <ron.difrango@xxxxxxxxxxxxxx>
2003-07-24 03:38 PM

 
        To:     "'aspectj-users@xxxxxxxxxxx'" <aspectj-users@xxxxxxxxxxx>
        cc:     Jon Pallas/EHV/CE/PHILIPS@EMEA3
        Subject:        RE: [aspectj-users] toString Aspect aspect browser
        Classification: 



Jon,

I got it to work with the following:

       public pointcut myClass(Object obj) : within(com.philips.sct..*)
                                 && this(obj);

                 public pointcut myToString(Object obj) : 
                                 myClass(obj)
                                 && execution(public String toString());

                 String around(Object obj) : myToString(obj) {
                                 return StringUtil.toString(obj); 
                 }

Thanks,

Ron DiFrango


-----Original Message-----
From: jon.pallas@xxxxxxxxxxx [mailto:jon.pallas@xxxxxxxxxxx] 
Sent: Thursday, July 24, 2003 7:58 AM
To: aspectj-users@xxxxxxxxxxx
Subject: [aspectj-users] toString Aspect aspect browser


Hi All 


I am new to aspectj so I may be doing something simple wrong any help 
would be apperciated.

I have writen an Aspect that i want to intersept any call to toString(). 
The code is below
using the aspect browser in eclipse i can see that it only affects classes 

that are not in 
com.philips.sct? but his is what i want tbe be affected? 

Is it just the browser or is it my code?

Thanks
Jon




1)

package com.philips.sct.aspects;

import com.philips.common.util.StringUtil;

public aspect ToStringEnhancerAspect {
 
        public pointcut myClass(Object obj) : within(com.philips.sct..*) 
&& this(obj);

 
        public pointcut myAspects() : within(com.philips.sct.aspects.*);
 
 
        public pointcut myToString(Object obj) : !myAspects()
                        &&  myClass(obj)
                        &&  call(public String toString())
                        ;

        String around (Object obj): myToString(obj){
                return StringUtil.toString(obj); 
        }
}


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