Singleton

This class allows you to restrict the instantiation of a specific class to one object.

Requirements

sbx320's classLib, can be found Here[1]

OOP on

Code

Singleton = {}

function Singleton:getSingleton(...)
	if not self.ms_Instance then
		self.ms_Instance = self:new(...)
	end
	return self.ms_Instance
end

function Singleton:new(...)
	self.new = function() end
	local inst = new(self, ...)
	self.ms_Instance = inst
	return inst
end

function Singleton:isInstantiated()
	return self.ms_Instance ~= nil
end

function Singleton:virtual_destructor()
	for k, v in pairs(super(self)) do
		v.ms_Instance = nil
		v.new = Singleton.new
	end
end

Call class methods by newest instance

Example

-- DEFINE CLASS
TestClass = inherit(Singleton)

function TestClass:run()
   -- DO SOMETHING
end

TestClass:getSingleton():run()

See Also

• Singleton » This class allows to restrict the instantiation of a specific class to one object.
• CThread » This class represents a simple coroutine manager which can be used to limit method calls / loop.
• Importer » This class make easy to use exported functions.