Method join points的意思|示意

A join point is "a well-defined point in the program flow." 3 There are many types of join points, such as a method call or a method return, which can be either a normal return or a thrown exception.

一个连接点是：一个在程序流程中定义明确的点。3连接点有很多类型，正如一个方法的调用或一个方法的返回，都可以是一个正常的返回或者抛出一个异常。

Some primitive pointcuts match only join points of a specific kind (for example, method executions).

有些原生切入点只与特定类型的连接点匹配（例如，方法执行）。

The second pointcut, employeeFinanceUpdates, describes all join points where there is a call to any method that begins with update, ends with Info, and has one argument of type Employee.

第二个切点， employeeFinanceUpdates, 描述了所有以 update开头， 以 Info, 结尾的，具有一个Employee类型实参的方法的调用点。

Method execution join points correspond to the life cycle of a method until it returns.

方法执行连接点，与方法返回之前的生命周期对应。

Pointcuts allow you to unambiguously reference multiple join points in the program code (method content and processes).

衡切点允许您明确的引用程序代码(方法内容和过程)中的多个连接点。

Typical join points in AspectJ include method calls, access to class members, and the execution of exception handler blocks.

AspectJ 中典型的 join point 包括方法调用、对类成员的访问以及异常处理程序块的执行。