Re: [aspectj-users] Use of introduced attributes/methods in around advic

["Ricardo Giacomin" <ricardo.giacomin@xxxxxxxxxx>]

The compiler message i get for the excerpt below is "isDirty cannot be
resolved or is not a field".

public aspect DirtinessControlAspect
{
   interface Entity {}
   declare parents: uol.job.store.* implements Entity;

   private boolean Entity.isDirty = false;
   void around(): execution(* Entity+.set*(..))
   {
      this.isDirty = true;
      proceed();
   }
}

Any hints?

[]s,
Ricardo.

----- Original Message -----
From: "Shimon Rura" <shimon@xxxxxxxx>
To: "Ricardo Giacomin" <ricardo.giacomin@xxxxxxxxxx>
Cc: <aspectj-users@xxxxxxxxxxx>
Sent: Monday, March 31, 2003 8:07 PM
Subject: Re: [aspectj-users] Use of introduced attributes/methods in around
advices


> You should be able to do what you want to do.  Could you post the error
> message the compiler gives you along with the introduction code?
>
> shimon.
>
> On Mon, Mar 31, 2003 at 07:25:57PM -0300, Ricardo Giacomin wrote:
> > Hi all,
> >
> > Is it possible to use introduced attributes in around advices? For
instance, suppose I have an aspect for keeping track of 'dirtiness' of db
entities. The boolean isDirty attribute is introduced in my entity classes
and I have an around() advice for all setters, which would mark this flag as
true. The problem is that I get a compiler error saying that isDirty cannot
be resolved or is not a field. If I keep isDirty as an aspect attribute, and
not introduce it in the entity classes, there will be only one isDirty for
all entities (which is not the intended behavior). What am I suppose to do?
Define a perInstance aspect?
> >
> > Any help would be most appreciated.
> >
> > []s,
> > Ricardo.