dk.rode.thesis.meta.reflect.proxy
Class ProxyFactory.Handler

java.lang.Object
  dk.rode.thesis.meta.reflect.proxy.ProxyFactory.Handler

All Implemented Interfaces:

InvocationHandler

Enclosing class:

ProxyFactory

private class ProxyFactory.Handler
extends Object
implements InvocationHandler

A handler is used to decorate all invocation handlers used by proxies created by any proxy factory.

A handler logs access to any method accessed via the proxy, and ensures correct ProxyFactory.Proxy functionality.

Author:

Gunni Rode / rode.dk

Field Summary

private InvocationHandler

handler The decorated handler.

Constructor Summary

private

ProxyFactory.Handler(InvocationHandler handler) Constructor.

Method Summary

Object	invoke(Object proxy, Method method, Object[] args) Logs each method invoked.
String	toString() Return the string representation of this handler.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

handler

private final InvocationHandler handler

The decorated handler.

Never null.

Constructor Detail

ProxyFactory.Handler

private ProxyFactory.Handler(InvocationHandler handler)

Constructor.

Parameters:

handler - The actual invocation handler; cannot be null.

Throws:

NullPointerException - If handler is null.

Method Detail

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Logs each method invoked.

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

toString

public String toString()

Return the string representation of this handler.

Overrides:

toString in class Object

Returns:

The string representation; never null.