Clever Geek Handbook

Create pointcut based on annotation parameters

I am trying to create a pointcut based on the annotaion parameter

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD})
public @interface MyAnnotation {
    Class<? extends ABC> style() default A.class;
}

And the pointcut I'm using at the moment:

@Pointcut("execution(@com.something.MyAnnotation * *(..))")
public void dummyMethod() {
}

@Around("method()")
public Object actualFunc(ProceedingJoinPoint joinPoint) throws Throwable {
    //stuff
}

But this, unfortunately, is activated in all values ​​of the style.

+3


source to share


1 answer


Obviously you could check the advice if the recommended method has the annotation value you're looking for, but it's not ideal (it's a runtime check). In your case, you can simply use the syntax:

@Pointcut("execution(@com.something.MyAnnotation(style=B.class) * *(..))")


Here's some information on the meaning of annotation matching: https://eclipse.org/aspectj/doc/released/README-160.html

+1


source






More articles:


All Articles