Re: [aspectj-dev] getArgs() and primitive types

[Dean Wampler <dean@xxxxxxxxxxxxxxxxxxxxx>]

A clarification; I looked at this a little more carefully and here's 
what I discovered.

It looks like calling "getClass()" on an object in the array returned by 
 "thisJoinPoint.getArgs()" does not equal Integer.TYPE, etc. if the 
original arg was a primitive type.

However, if you use Java reflecton calls on a Class instance, e.g., you 
call "getDeclaredMethods()", then call "getParameterTypes()" on any of 
the returned methods, then those Class instances will equal the *.TYPE 
instances if the original arg/parameter was primitive.

So, I guess the question remains, does anyone know of a way to determine 
whether or not an object returned from "getArgs()" wraps a primitive or 
not? I could use the answer, too ;)

dean

Dean Wampler wrote:
> Oleg,
>
> I ran into a similar problem recently while working on 
> <shamelss-plus>Contract4J</shameless-plus>.  I believe that getClass() 
> on your objects will return Integer.TYPE, rather than some other 
> instance of the Integer class, and similarly for the other wrappers, if 
> the object is actually a wrapper around a primitive type.
>
> If you just need to report the "true" type of the object, I think that 
> obj.getClass().toString() on one of these wrappers outputs "int", 
> "float", etc., while an object that isn't primitive will result in 
> "java.lang.Integer", etc.
>
> Let me know if this works!
>
> dean
>
> Oleg Lebedev wrote:
>
> > Greetings.
> >  
> > How can I tell whether an argument in an Object array returned from 
> > JointPoint.getArgs() has a primitive type?
> >  
> > What I am trying to do is to record a method execution and all the 
> > parameters passed to the method. I also need to be able to distinguish 
> > between Integer and int parameters. However, ints are wrapped in 
> > Integers when returned by getArgs() method. Is there a way to tell 
> > that even though getArgs() returned an Integer object, in reality the 
> > method takes an int as a parameter?
> >  
> > Thanks.
> >  
> > *Oleg Lebedev*
> > Software Architect
> > Waterford Research Institute
> > Phone: 801.938.1724
> > Cell: 801.209.6706
> >  
> >
> >
> > ------------------------------------------------------------------------
> >
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> > aspectj-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/aspectj-dev

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Dean Wampler, Ph.D.
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