Fuck the Python Borg, I like Singleton Better
I’ve read in parts of the web (and on the Martinelli’s Python Cookbok) that it’s better to do the Borg pattern over singletons, they say something alongs the lines of:
“who cares about identity, care about shared state”
Coming from the Java world, I just can’t understand that, why waste memory and cpu to address objects that share a state when you can have a single object in memory.
If you’re looking on how to implement singleton in a simple manner with Python, do the following my friend:
class MyClass:
__INSTANCE__ = None
def __init__(self):
#do whatever you need on your constructor
pass
@staticmethod
def getInstance():
if MyClass.__INSTANCE__ is None:
MyClass.__INSTANCE__ = MyClass()
return MyClass.__INSTANCE__
#Then use it.
theOne = MyClass.getInstance()
Done deal, now start trolling on why this code sucks so we can fix it.
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April 27th, 2007 at 5:52 am
I like more singletons, in Ruby just do this:
require ‘singleton’
class MiClase
include Singleton
end
In spanish a little more about Singleton in Ruby
http://www.lacaraoscura.com/2006/05/23/patrones-de-diseno-en-ruby-singleton/
Salu2