Joinpoint (Spring Framework 4.3.30.RELEASE API)

所有已知子接口:
ConstructorInvocation, Invocation, MethodInvocation, ProxyMethodInvocation
所有已知实现类:
ReflectiveMethodInvocation
```
public interface Joinpoint
```
This interface represents a generic runtime joinpoint (in the AOP terminology).
A runtime joinpoint is an event that occurs on a static joinpoint (i.e. a location in a the program). For instance, an invocation is the runtime joinpoint on a method (static joinpoint). The static part of a given joinpoint can be generically retrieved using the getStaticPart() method.
In the context of an interception framework, a runtime joinpoint is then the reification of an access to an accessible object (a method, a constructor, a field), i.e. the static part of the joinpoint. It is passed to the interceptors that are installed on the static joinpoint.
作者:
Rod Johnson
另请参阅:
Interceptor

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`AccessibleObject`	`getStaticPart()`	Return the static part of this joinpoint.
`Object`	`getThis()`	Return the object that holds the current joinpoint's static part.
`Object`	`proceed()`	Proceed to the next interceptor in the chain.

- 方法详细资料
  - proceed
```
Object proceed()
        throws Throwable
```
    Proceed to the next interceptor in the chain.
    The implementation and the semantics of this method depends on the actual joinpoint type (see the children interfaces).
    返回:
    see the children interfaces' proceed definition
    抛出:
    Throwable - if the joinpoint throws an exception
  - getThis
```
Object getThis()
```
    Return the object that holds the current joinpoint's static part.
    For instance, the target object for an invocation.
    返回:
    the object (can be null if the accessible object is static)
  - getStaticPart
```
AccessibleObject getStaticPart()
```
    Return the static part of this joinpoint.
    The static part is an accessible object on which a chain of interceptors are installed.