Can I get a list of method parameters in Java

Question

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I'm writing a ton of boilerplate like this. I feel like there has to be a better way. What I'm looking for is getting the new Object[] automatically from the method call. Something like Reflection.getCurrentMethodCall().getArgumentsAsList().toArray(), but I'm not sure what keywords I should be looking for

Thanks!

[ ... 50 identical methods ... ]
                @Override
            public int get_ProxyFactoryMapping(PointerByReference factoryMapping) {
                Function f = Function.getFunction(vTable[48], Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{getInterface(), factoryMapping});
            }

            @Override
            public int GetPropertyProgrammaticName(int property, PointerByReference name) {
                Function f = Function.getFunction(vTable[49], Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{getInterface(), property, name});
            }

            @Override
            public int GetPatternProgrammaticName(int pattern, PointerByReference name) {
                Function f = Function.getFunction(vTable[50], Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{getInterface(), pattern, name});
            }
            @Override
            public int GetPatternProgrammaticName(0..n arguments) {
                Function f = Function.getFunction(vTable[running index], Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{getInterface(), the same arguments as this object was called with});
            }
[ ... 150 identical methods ... ]

Answer 1

Have you tried java.lang.reflect.Proxy and java.lang.reflect.InvocationHandler?

Basically you implement the InvocationHandler interface, which has one single method invoke that can give you what you want:

Object invoke(Object proxy, // the proxy object
              Method method, // the method called
              Object[] args) // the argument list
       throws Throwable

Then you pass an instance of the handler to Proxy class to get a proxy object (Code copied from Java Doc):

Foo f = (Foo) Proxy.newProxyInstance(Foo.class.getClassLoader(),
                                      new Class[] { Foo.class },
                                      handler);

Where Foo is a interface.