All Superinterfaces:
Advice, Interceptor
All Known Subinterfaces:
IntroductionInterceptor
All Known Implementing Classes:
AbstractMonitoringInterceptor, AbstractRemoteSlsbInvokerInterceptor, AbstractSlsbInvokerInterceptor, AbstractTraceInterceptor, AfterReturningAdviceInterceptor, AnnotationAsyncExecutionInterceptor, AspectJAfterAdvice, AspectJAfterThrowingAdvice, AspectJAroundAdvice, AsyncExecutionInterceptor, BurlapClientInterceptor, BurlapProxyFactoryBean, CacheInterceptor, ConcurrencyThrottleInterceptor, CustomizableTraceInterceptor, DebugInterceptor, DelegatePerTargetObjectIntroductionInterceptor, DelegatingIntroductionInterceptor, EventPublicationInterceptor, ExposeInvocationInterceptor, HessianClientInterceptor, HessianProxyFactoryBean, HibernateInterceptor, HttpInvokerClientInterceptor, HttpInvokerProxyFactoryBean, JamonPerformanceMonitorInterceptor, JaxWsPortClientInterceptor, JaxWsPortProxyFactoryBean, JCacheInterceptor, JmsInvokerClientInterceptor, JmsInvokerProxyFactoryBean, JndiRmiClientInterceptor, JndiRmiProxyFactoryBean, LocalSlsbInvokerInterceptor, LocalStatelessSessionProxyFactoryBean, MBeanClientInterceptor, MBeanProxyFactoryBean, MethodBeforeAdviceInterceptor, MethodValidationInterceptor, OpenSessionInterceptor, OpenSessionInterceptor, OpenSessionInterceptor, PerformanceMonitorInterceptor, PersistenceExceptionTranslationInterceptor, RemoteInvocationTraceInterceptor, RmiClientInterceptor, RmiProxyFactoryBean, SimpleRemoteSlsbInvokerInterceptor, SimpleRemoteStatelessSessionProxyFactoryBean, SimpleTraceInterceptor, ThrowsAdviceInterceptor, TransactionInterceptor
```
public interface MethodInterceptor
extends Interceptor
```
Intercepts calls on an interface on its way to the target. These are nested "on top" of the target.
The user should implement the invoke(MethodInvocation) method to modify the original behavior. E.g. the following class implements a tracing interceptor (traces all the calls on the intercepted method(s)):
```
 class TracingInterceptor implements MethodInterceptor {
   Object invoke(MethodInvocation i) throws Throwable {
     System.out.println("method "+i.getMethod()+" is called on "+
                        i.getThis()+" with args "+i.getArguments());
     Object ret=i.proceed();
     System.out.println("method "+i.getMethod()+" returns "+ret);
     return ret;
   }
 }
 
```
Author:
Rod Johnson

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`invoke(MethodInvocation invocation)`	Implement this method to perform extra treatments before and after the invocation.

- Method Detail
  - invoke
```
Object invoke(MethodInvocation invocation)
       throws Throwable
```
    Implement this method to perform extra treatments before and after the invocation. Polite implementations would certainly like to invoke Joinpoint.proceed().
    Parameters:
    invocation - 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

Interface MethodInterceptor

Method Summary

Method Detail

invoke