public interface InvocationInterceptor
InvocationHandler
.Modifier and Type | Method and Description |
---|---|
Object |
invoke(Object proxy,
Method method,
Object[] args,
InvocationHandler delegate)
This method can intercept the invocation of
InvocationHandler either before or after
the invocation happens. |
Object invoke(Object proxy, Method method, Object[] args, InvocationHandler delegate) throws Throwable
InvocationHandler
either before or after
the invocation happens.
The general coding pattern is:
Object invoke(Object proxy, Method method, Object[] args, InvocationHandler delegate) { ... do pre-invocation work ... ret = delegate.invoke(proxy,method,args); ... do post-invocation work ... return ret; }
But the implementation may choose to skip calling the 'delegate' object, alter arguments, and alter the return value.
Throwable
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