[news.eclipse.technology.ajdt] Re: how to capture method joinpoints in E

[Andrew Eisenberg <andrew.eisenberg@xxxxxxxxxxxxxxxx>]

One thing that you can do is create an abstract aspect that defines the
advice and an abstract pointcut.  People who want to use your aspect need to
create a concrete aspect and instantiate the pointcut.

Eg- 

abstract aspect AbstractSessionBeanAspect {
  protected abstract pointcut sessionBeanMethods();

  before() : sessionBeanMethods() {
   // do something

  }
}


aspect MySessionBeanAspect extends AbstractSessionBeanAspect {
  protected pointcut sessionBeanMethods() : execution(
SessionBeanInterface.*(..));
}

On 28/07/09 2:46 AM, in article
ecf71309e5f50e59fcb367e208c87a5e$1@xxxxxxxxxxxxxxx, "ppk"
<imperfectluk-ppk@xxxxxxxxxxxx> wrote:

> Hi all,
> 
>  i am new to aspectj and i am trying to write aspect to capture the method
> of all a session bean (EJB 3.0 syntax).
> 
>   the methods i want to captures are the 'business method' in the session
> bean.
> As EJB 3.0 session bean can be created in the following form:
> 
> --------------------------------------------------------------
> public interface SessionBeanInterface {
>    public void advicedMethod();
> } 
> --------------------------------------------------------------
> 
> @Stateless(name="SessionBean")
> @Remote(SessionBeanInterface.class)
> public class SessionBean implements SessionBeanInterface {
> 
>    public void advicedMethod(){
>     
>     //this method to be captured by before execution(...) pointcut
> 
>    }
> 
>    public void nonAdvicedMethod() {
>     //this method is NOT to be captured
>    }
> }
> -------------------------------------------------------------------
> 
> could anybody tell me the pointcut to capture ONLY the
> method in the SessionBeanInterface interface??
> 
> *** i CANNOT HARDCODE the interface in the aspect as i am now writing a
> *** generic tool to capture all the session bean interface method
> 
> thank you.
> 
> ppk
> 
>