java.lang.Object
- org.springframework.aop.interceptor.ExposeInvocationInterceptor

All Implemented Interfaces:
Serializable, Advice, Interceptor, MethodInterceptor, Ordered, PriorityOrdered
```
public class ExposeInvocationInterceptor
extends Object
implements MethodInterceptor, PriorityOrdered, Serializable
```
Interceptor that exposes the current MethodInvocation as a thread-local object. We occasionally need to do this; for example, when a pointcut (e.g. an AspectJ expression pointcut) needs to know the full invocation context.
Don't use this interceptor unless this is really necessary. Target objects should not normally know about Spring AOP, as this creates a dependency on Spring API. Target objects should be plain POJOs as far as possible.
If used, this interceptor will normally be the first in the interceptor chain.
Author:
Rod Johnson, Juergen Hoeller
See Also:
Serialized Form

Field Summary
Fields
Modifier and Type Field Description
static Advisor ADVISOR
Singleton advisor for this class.
static ExposeInvocationInterceptor INSTANCE
Singleton instance of this class
- Fields inherited from interface org.springframework.core.Ordered
  HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static MethodInvocation`	`currentInvocation()`	Return the AOP Alliance MethodInvocation object associated with the current invocation.
`int`	`getOrder()`	Get the order value of this object.
`Object`	`invoke(MethodInvocation mi)`	Implement this method to perform extra treatments before and after the invocation.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - INSTANCE
```
public static final ExposeInvocationInterceptor INSTANCE
```
    Singleton instance of this class
  - ADVISOR
```
public static final Advisor ADVISOR
```
    Singleton advisor for this class. Use in preference to INSTANCE when using Spring AOP, as it prevents the need to create a new Advisor to wrap the instance.
- Method Detail
  - currentInvocation
```
public static MethodInvocation currentInvocation()
                                          throws IllegalStateException
```
    Return the AOP Alliance MethodInvocation object associated with the current invocation.
    Returns:
    the invocation object associated with the current invocation
    Throws:
    IllegalStateException - if there is no AOP invocation in progress, or if the ExposeInvocationInterceptor was not added to this interceptor chain
  - invoke
```
public Object invoke(MethodInvocation mi)
              throws Throwable
```
    Description copied from interface: MethodInterceptor
    Implement this method to perform extra treatments before and after the invocation. Polite implementations would certainly like to invoke Joinpoint.proceed().
    Specified by:
    invoke in interface MethodInterceptor
    Parameters:
    mi - the method invocation joinpoint
    Returns:
    the result of the call to Joinpoint.proceed(); might be intercepted by the interceptor
    Throws:
    Throwable - if the interceptors or the target object throws an exception
  - getOrder
```
public int getOrder()
```
    Description copied from interface: Ordered
    Get the order value of this object.
    Higher values are interpreted as lower priority. As a consequence, the object with the lowest value has the highest priority (somewhat analogous to Servlet load-on-startup values).
    Same order values will result in arbitrary sort positions for the affected objects.
    Specified by:
    getOrder in interface Ordered
    Returns:
    the order value
    See Also:
    Ordered.HIGHEST_PRECEDENCE, Ordered.LOWEST_PRECEDENCE

Modifier and Type	Field	Description
`static Advisor`	`ADVISOR`	Singleton advisor for this class.
`static ExposeInvocationInterceptor`	`INSTANCE`	Singleton instance of this class

Class ExposeInvocationInterceptor

Field Summary

Fields inherited from interface org.springframework.core.Ordered

Method Summary

Methods inherited from class java.lang.Object

Field Detail

INSTANCE

ADVISOR

Method Detail

currentInvocation

invoke

getOrder