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import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME) @Inherited @interface Colored { String color(); }
public class AtTarget4 {
public static void main(String[]argv) {
new A().m();
new B().m();
new C().m();
}
}
@Colored(color="yellow")
class A {
public void m() { System.err.println("method"); }
}
class B extends A { } // inherits yellow color :)
@Colored(color="blue") class C extends B { }
aspect X {
int adviceexecutions = 0;
before(Colored c): call(* *(..)) && !within(X) && @target(c) {
System.err.println(c.color() + thisJoinPoint);
adviceexecutions++;
if (adviceexecutions == 1 && !c.color().equals("yellow"))
throw new RuntimeException("First advice execution, color should be yellow");
if (adviceexecutions == 2 && !c.color().equals("yellow"))
throw new RuntimeException("Second advice execution, color should be yellow");
if (adviceexecutions == 3 && !c.color().equals("blue"))
throw new RuntimeException("Third advice execution, color should be blue");
if (adviceexecutions > 3)
throw new RuntimeException("Advice should only run twice");
}
}
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