EJB Core spec 12.3.1 Multiple Business Method Interceptor Methods

[Lee Kian Giap]

Confuse for the explanation of EJB Core spec 12.3.1 Multiple Business Method Interceptor Methods

My understanding is as follows: (numbered is the order of invocation)

(1) Default Interceptors (if >1 , follows DD order)

(2) Class-level Interceptors (i.e. @Interceptor defined on bean class, 
                                                means @Interceptor code written above the bean class declaration)

        (2a) @AroundInvoke method in Interceptor class
               (If Interceptor class has superclass(es), all @ArroundInvoke method of superclass(es) invoked, 
                except those method overrided in Interceptor class. 
                Overriding method in Interceptor class may/may not be an @AroundInvoke method)

        (2b) @AroundInvoke method in Bean class
               (If Bean class has superclass(es), all @ArroundInvoke method of superclass(es) invoked, 
                except those method overrided in Bean class. 
                Overriding method in Bean class may/may not be an @AroundInvoke method)

        (follows the order of @Interceptor)
        for example @Interceptor({interceptorclass1.class, interceptorclass2.class, beanclass1.class, interceptorclass3.class, beanclass2.class})
        so the order is interceptorclass1.class -> interceptorclass2.class -> interceptorclass3.class -> beanclass1.class -> beanclass2.class


(3) Method-level Interceptors (i.e. @Interceptor defined on bean class's method, 
                                                  means @Interceptor code written above the bean class's method declaration)

        (3a) @AroundInvoke method in Interceptor class
               (If Interceptor class has superclass(es), all @ArroundInvoke method of superclass(es) invoked, 
                except those method overrided in Interceptor class. 
                Overriding method in Interceptor class may/may not be an @AroundInvoke method)

        (3b) @AroundInvoke method in Bean class
               (If Bean class has superclass(es), all @ArroundInvoke method of superclass(es) invoked, 
                except those method overrided in Bean class. 
                Overriding method in Bean class may/may not be an @AroundInvoke method)

        (follows the order of @Interceptor)
        for example @Interceptor({interceptorclass1.class, interceptorclass2.class, beanclass1.class, interceptorclass3.class, beanclass2.class})
        so the order is interceptorclass1.class -> interceptorclass2.class -> interceptorclass3.class -> beanclass1.class -> beanclass2.class

so the order is like this (1) --> (2a) --> (2b) --> (3a) --> (3b)



Please correct me if I was wrong , really confuse.

Thanks in advance !!!