Re: [aspectj-users] How to use "call pointcut", when using reflection

[Jim Hugunin <lists@xxxxxxxxxxx>]

Tarun Sharma wrote:
> The problem : If I have to use "call pointcut" as in
> call(ConstructorPattern) and if there the constructor is invoked via
> reflection then it doesn't seem to execute the advice. I believe the
> reason is at the compile time weaving the "ajc compiler" does not weave
> for clients executing via reflection.

The only way I believe you can do this in AspectJ-1.1 is to put your 
advice on the reflective call itself and then do a dynamic test, i.e.

after() returning(Object newObject):
    call(Object java.lang.reflect.Constructor.newInstance(*))
{
    if (newObject instanceof MyClass) {
        <do something here with newObject>
    }
}

> The issue is I CANNOT use "execution pointcut" as I have to get return
> type from the "call(ConstructorPattern)"

Hmm, are you sure you need this?  Are you using around advice to change 
the return value, or do you just need to access it?  You can use the 
this pcd to bind the value of the new Object, like this:

after(Object newObject) returning:
    execution(MyClass.new(..)) && this(newObject)
{
    <do something here with newObject>
}

I hope this helps - Jim