使用Scala中的aspectj修改方法参数值(Modify a method parameter value using aspectj in Scala)

 我有一种情况，我需要在scala中使用aspectj修改方法参数值。 我正在使用@Before注释来获取字段。 
 
 @Before("execution (* com.myapp.EmployeeController.delete(..))")
  def checkIfWorkflowEnabled(joinPoint: ProceedingJoinPoint): Object = {
    //get the fields and modify oen field
    //check some condition and if success, update the isActive field to false
    //then proceed with what was going on before
  }
 
 我的控制器方法： 
 
def delete(id:Long, isActive:Boolean)= {
???
}
 
 但我无法使用aspectj更新字段'isActive'。 
 
 编辑： 
 
 正如Andy所说，我明白我们只能在around方法中修改方法args。 现在，我有另一个疑问。 在around方法中，是否会在实际方法调用之前和之后执行方面？ 如何在删除方法执行之前修改方法args然后像往常一样继续。 并且在完成delete方法之后，调用其他一些方法。 

I have a situation where I need to modify the method parameter value using aspectj in scala. I am using @Before annotation to get the fields. 
 
 @Before("execution (* com.myapp.EmployeeController.delete(..))")
  def checkIfWorkflowEnabled(joinPoint: ProceedingJoinPoint): Object = {
    //get the fields and modify oen field
    //check some condition and if success, update the isActive field to false
    //then proceed with what was going on before
  }
 
My Controller method:
 
def delete(id:Long, isActive:Boolean)= {
???
}
 
But I am not able to update the field 'isActive' using aspectj.
 
EDIT:
 
As Andy said, I understood that we can modify the method args only in around method. Now, I have another doubt. In around method, will the aspect be executed before and after the actual method invocation? How can I modify the method args before the delete method execution and then just proceed as usual. And after completion of the delete method, invoke some other method.?

原文：https://stackoverflow.com/questions/28560059