/*
 * Created on 08.05.2005
 *
 * $Id$
 */
package verwaltung;

import org.aspectj.lang.annotation.*;

/*
public aspect GefuehlsAspekt {
    
    public interface Feeling {};
    
    private String Feeling.sense = "I feel good";
    
    public String Feeling.getSense() {
        return sense;
    }
    
    declare parents : Person implements Feeling;
    
    after(Feeling f) : execution(* *.*(..))
            && this(f) && !within(GefuehlsAspekt) {
        System.out.println(f.getSense());
    }
    
//    String around(Feeling f) : execution(* *.toString()) && this(f) {
//        return proceed(f) + " (" + f.getSense() + ")";
//    }

}
*/

@Aspect
public class GefuehlsAspekt {
    
    public interface Feeling {
        String getSense();
    }
    
    // declare-Anweisung scheint mit M4 immer no net zu tun
    //@DeclareParents("verwaltung.Person")
    public static class FeelingImpl implements Feeling {
        private String sense = "I feel good";

        public String getSense() {
            return sense;
        }
    }
    
    // doch, die declare-Anweisung tut jetzt (1.5.0.200510241400)
    // aber a bißele anders...
    // @see http://dev.eclipse.org/viewcvs/index.cgi/org.aspectj/modules/docs/adk15ProgGuideDB/ataspectj.xml?rev=HEAD&cvsroot=Technology_Project&content-type=text/vnd.viewcvs-markup
    //@DeclareParents("verwaltung.Person")
    //static public Feeling introduced = new FeelingImpl();
    
    // ab AspectJ 1.5.0 (Build 20051220093604) geht's jetzt so:
    @DeclareParents(value="verwaltung.Person", defaultImpl=FeelingImpl.class)
    private Feeling introduced;
    
    @After("execution(* *.*(..)) && this(f) && !within(GefuehlsAspekt)")
    public void howdoyoufeeltoday(Feeling f) {
        System.out.println(f.getSense());
    }

}