Let's say you have three advices: around, before and after.
1) Are before/after called when proceed is called in the around advice, or are they called before/after the around advice as a whole?
2) If my around advice does not call proceed, will the before/after advice be run anyway?
AspectJ Is Powerful, Mature, and Used in a Lot of Frameworks AspectJ is very mature, powerful and widely used in today's enterprise Java frameworks like Spring. Spring uses AspectJ to make it easy for the developers to use Transaction Management, or applying security (using Spring Security) in your application.
In summary, joinPoint. proceed(); means that you are calling the set method, or invoking it.
JoinPoint is an AspectJ interface that provides reflective access to the state available at a given join point, like method parameters, return value, or thrown exception. It also provides all static information about the method itself.
JoinPoint: Joinpoint are points in your program execution where flow of execution got changed like Exception catching, Calling other method. PointCut: PointCut are basically those Joinpoints where you can put your advice(or call aspect). So basically PointCuts are the subset of JoinPoints.
With this Test
@Aspect public class TestAspect { private static boolean runAround = true; public static void main(String[] args) { new TestAspect().hello(); runAround = false; new TestAspect().hello(); } public void hello() { System.err.println("in hello"); } @After("execution(void aspects.TestAspect.hello())") public void afterHello(JoinPoint joinPoint) { System.err.println("after " + joinPoint); } @Around("execution(void aspects.TestAspect.hello())") public void aroundHello(ProceedingJoinPoint joinPoint) throws Throwable { System.err.println("in around before " + joinPoint); if (runAround) { joinPoint.proceed(); } System.err.println("in around after " + joinPoint); } @Before("execution(void aspects.TestAspect.hello())") public void beforeHello(JoinPoint joinPoint) { System.err.println("before " + joinPoint); } }
i have following output
so you can see before/after are not called when proceed is called from within @Around
annotation.
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