[Gmailagent-cvs] GA-Qgcm BorgSingleton.py,NONE,1.1

[Stas Z. <sta...@us...>]

Update of /cvsroot/gmailagent/GA-Qgcm
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4925

Added Files:
	BorgSingleton.py 
Log Message:
added singleton class

--- NEW FILE: BorgSingleton.py ---
"""
Borg and more than one module, Jan Wender, 2001/10/11
If you want to use the Borg pattern from more than one module,
it works as follows: Extract the Borg Pattern into a module and a
class of its own: borg.py:

class Borg:
    __shared_state = {} # or org.python.core.PyStringMap in jython
    def __init__(self):
         self.__dict__ = self.__shared_state

Let your class in a separate module inherit from Borg and call Borg's
initializer in your __init__:

import borg
class Test(borg.Borg):
  def __init__(s):
     borg.Borg.__init__(s)

Although sounding like a swedish chef, it works now.
The state is shared across all modules using the Test class. 
"""

class Borg:
    __shared_state = {}
    def __init__(self):
        self.__dict__ = self.__shared_state
    # and whatever else you want in your class -- that's all!