aspectj

I am using aop in scala using aspectj . I have a method def delete(@Id id:Long, name:String) How can I get the value of id in my aspect file. @Around("execution (* com.myapp.Employee.delete(..))") def message(joinPoint: ProceedingJoinPoint): Object = { val methodSignature =joinPoint.getSignature.asInstanceOf[MethodSignature] //get the value of the field id joinPoint.proceed } I am not able to get the values. If I try val res = methodSignature.getMethod.getParameterAnnotations res.map(annotations => println("size = "+annotations.length)) It is always printing the size as 0. EDIT: Now I am

Can I implement Strategy Pattern using AOP. I would like to either 1. Override the default algorithm 2. Or Would like to dynamically select any of the given algorithm. Thanks, Look at "AspectJ Cookbook" by Russell Miles. It provides implementation of almost all classical design patterns from the point of AspectJ's view. Here is direct link to strategy pattern http://books.google.com/books?id=AKuBlJGl7iUC&lpg=PP1&pg=PA230#v=onepage&q&f=true . 来源： https://stackoverflow.com/questions/7244165/how-can-we-implement-strategy-pattern-using-aspectj

Let's say I have few aspects, which I have already compiled, and now I just want to compile single source file, but without recompiling the aspects, since it takes a lot of time. Is there any way to do so? For example, I have the following: Trace.aj Log.aj Test.java All of them were compiled during my "build-all", and now I've changed Test.java and wants to recompile it using the (already compiled) aspects. Use load-time weaving. http://www.aspectprogrammer.org/blogs/adrian/2004/05/loadtime_weavin.html Here's how to do it in eclipse: http://www.eclipse.org/aspectj/doc/released/devguide/ltw

I have a Spring Roo multi module project . I noticed that after including the jar/module containing my domain model in another project, the aspects had not been woven leaving me with domain classes without any usable getters/setters . How can I make sure that aspects generated by Spring roo are woven by the dependent project? EDIT : In order to be able to use Roo's aspects from another project, one needs to include the aspectJ plugin in the dependent project. Note that compile time loading is not needed that way. You need to include the aspectj maven plugin in the pom: <plugin> <groupId>org

写在前面的话 很久没更新笔记了，有人会抱怨：小冯啊，你是不是在偷懒啊，没有学习了。老哥，真的冤枉：我觉得我自己很菜，还在努力学习呢，正在学习Vue.js做管理系统呢。即便这样，我还是不忘更新Spring的知识，这不就来了吗？ IOC 我想把类交给Spring，让他帮我创建对象，这应该怎么做？ 1、类 package com.fengwenyi.learn.java.springioc; import org.springframework.stereotype.Component; /** * @author Wenyi Feng */ @Component public class Person { private String name; public Person() {} public void sayHello() { System.out.format("%s说：Hello.", name); } // getter and setter } 2、Controller package com.fengwenyi.learn.java.springioc; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation

How can I get an already existing object spring managed? I would like to hook it up to Springs AoP capabilities using aspectj . I know this to be a challenge since Spring AoP uses dynamic proxies which probably are created along with the object. Why do I need this? I have a third-party class which takes a constructor argument which is only known in runtime , hence it seems I cannot add it to my applicationContext or use springs FactoryBean interface for construction. Is there any other way? I've already tried the following without great success: Obj obj = new ThirdPartyObj("runtime constructor