Note to self for the format of modules in JamieMVC

simpleData.js

var simpleData = function (data)
{
	var that = {};

	// Decorators should always hold a simpleData instance, as you can nest instances
	// we do checking here rather than in every decorator
	if (typeof data.set === 'function')
	{
		return data;
	}

	// PRIVATE METHODS
	// ################################################
	
	
	// PUBLIC
	// ################################################

	that.set = function(candidate)
	{
		data = candidate;
		
		// if changed etc here...
		$(that).trigger('change');
	}
	
	that.get = function()
	{
		return data;
	}

	// INIT
	// ################################################

	return that;
}

simpleDataDecorator.js

var sortableData = function (data)
{
	var that = {},
	    _super,
	    _data;

	// PRIVATE METHODS
	// ################################################

	function _onChange(newData)
	{
		_data = newData + ' sorted';
		return _data;
	}

	// PUBLIC
	// ################################################

	that.set = function(x)
	{
		// set our simpleData, if it changes our onChange will finish it off
		_super.set(x);
	}
	
	that.get = function()
	{
		return _data;
	}

	// INIT
	// ################################################

	// always keep a simpleData instance
	_super = simpleData(data);

	// when the simpleData instance changes we process it and store it
	_data = _onChange(_super.get());
	
	// re-process our data whenever the simpleData instance changes
	$(_super).bind('change', function()
	{
		_onChange(_super.get());
	});

	return that;
}