Acutally the explanation is quite simple if you understand the basic difference between call() and execution() pointcuts: While the former intercepts all callers (i.e. the sources of method calls), the latter intercepts the calls themselves no matter where they originate from. So how can the number of interceptions triggered by both pointcuts differ? If you … Read more
Just to get your head around it: It is the ability to hook events such as: creation of objects, setting of properties, etc, and attach general functions to them, that will be populated with relevant context. Because C# doesn’t have an inbuilt facility for this, you need a framework, like PostSharp, to do ‘bytecode weaving’ … Read more
AOP addresses the problem of cross-cutting concerns, which would be any kind of code that is repeated in different methods and can’t normally be completely refactored into its own module, like with logging or verification. So, with AOP you can leave that stuff out of the main code and define it vertically like so: function … Read more
I think that Castle Dynamic Proxy is the solution of choice if dynamic interception can handle your needs. This framework is used internally by a lot of other frameworks that want to offer AOP capabilities. Typically, most of existing IoC containers now provide some dynamic interception mechanisms (Spring.NET, Castle Windsor, StructureMap, etc.) If you already … Read more
I have created a simple aspect to capture the execution of public methods. The core of this AspectJ code is the pointcut definition: pointcut publicMethodExecuted(): execution(public * *(..)); Here we are capturing all public methods with any return type, on any package and any class, with any number of parameters. The advice execution could be … Read more
You should combine a type pointcut with a method pointcut. These pointcuts will do the work to find all public methods inside a class marked with an @Monitor annotation: @Pointcut(“within(@org.rejeev.Monitor *)”) public void beanAnnotatedWithMonitor() {} @Pointcut(“execution(public * *(..))”) public void publicMethod() {} @Pointcut(“publicMethod() && beanAnnotatedWithMonitor()”) public void publicMethodInsideAClassMarkedWithAtMonitor() {} Advice the last pointcut that combines … Read more
C# is not an AOP oriented language. It has some AOP features and you can emulate some others but making AOP with C# is painful. I looked up for ways to do exactly what you wanted to do and I found no easy way to do it. As I understand it, this is what you … Read more