org.springframework.aop.framework.adapter

Class ThrowsAdviceInterceptor

java.lang.Object

org.springframework.aop.framework.adapter.ThrowsAdviceInterceptor

All Implemented Interfaces:

Advice, Interceptor, MethodInterceptor, AfterAdvice

public class ThrowsAdviceInterceptor
extends Object
implements MethodInterceptor, AfterAdvice

Interceptor to wrap an after-throwing advice.

The signatures on handler methods on the ThrowsAdvice implementation method argument must be of the form:
void afterThrowing([Method, args, target], ThrowableSubclass);

Only the last argument is required.

Some examples of valid methods would be:

public void afterThrowing(Exception ex)

public void afterThrowing(RemoteException)

public void afterThrowing(Method method, Object[] args, Object target, Exception ex)

public void afterThrowing(Method method, Object[] args, Object target, ServletException ex)

This is a framework class that need not be used directly by Spring users.

Author:

Rod Johnson, Juergen Hoeller

See Also:

MethodBeforeAdviceInterceptor, AfterReturningAdviceInterceptor

Constructor Summary

Constructors

Constructor and Description
ThrowsAdviceInterceptor(Object throwsAdvice) Create a new ThrowsAdviceInterceptor for the given ThrowsAdvice.

Method Summary

Modifier and Type	Method and Description
int	getHandlerMethodCount() Return the number of handler methods in this advice.
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

Constructor Detail

ThrowsAdviceInterceptor

public ThrowsAdviceInterceptor(Object throwsAdvice)

Create a new ThrowsAdviceInterceptor for the given ThrowsAdvice.

Parameters:

throwsAdvice - the advice object that defines the exception handler methods (usually a ThrowsAdvice implementation)

Method Detail

getHandlerMethodCount

public int getHandlerMethodCount()

Return the number of handler methods in this advice.

invoke

@Nullable
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