Spring AOP superclass method execution without @target

Question

Consider the following situation:

class A() {
    void a();
}

@MyAnnotation
class B extends A {
    void b();
}

I want to advice all methods of all classes annotated with @MyAnnotation (i.e B.a()). That's pretty easy task due to the possibility of using @target pointcut expression. BUT! in that case all beans in a container (even unsuitable) will be Proxified what is unacceptable.

Now the question: Is it possible to build up pointcut expressino without @target but with the same effect?

score 1 · Accepted Answer · edited May 23 '17 at 11:48

You can use within like this.

execution(* *(..)) && within(@MyAnnotation *)

refer to https://stackoverflow.com/a/2522821/672586 and http://forum.springsource.org/showthread.php?28525-Difference-between-target-and-within-in-Spring-AOP for more details. The relevant section from the forum post explaining the difference between within and target

One difference between the two is that @within() is matched statically, requiring the corresponding annotation type to have only the CLASS retention. Whereas, @target() is matched at runtime, requiring the same to have the RUNTIME retention. Other than that, within the context of Spring, there is no difference between the join points selected by two.

Spring AOP superclass method execution without @target

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