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Changeset 83

Timestamp:

08/23/07 20:50:10 (1 year ago)

Author:

jkyllo

Message:

Expanded a couple docstrings.

Files:

r81	r83
112	112
113	113	class Singleton(object):
114		"""An implementation of the Singleton pattern. When a new Singleton is created, it first checks to see if an instance of its particular class exists. If not, then a new instance is created. After the created or stored instance is returned. The Singleton is designed so that subclasses of Singleton inherit this ability thereby leaving only the implmentation work for the subclass.
	114	"""An implementation of the Singleton pattern. When a new Singleton is
	115	created, it first checks to see if an instance of its particular class
	116	exists. If not, then a new instance is created. Afterwards the created or
	117	stored instance is returned. The Singleton is designed so that subclasses
	118	of Singleton inherit this ability thereby leaving only the implmentation
	119	work for the subclass.
115	120
116	121	>>> class Test(Singleton):
…	…
131	136
132	137	def __new__(cls, args, *kwargs):
133		"""Overrides default object creation to ensure that only one instance per class is ever returned. These instances are stored in a dictionary on the Singleton class that is keyed on the type of the object being created."""
	138	"""Overrides default object creation to ensure that only one instance
	139	per class is ever returned. These instances are stored in a dictionary
	140	on the Singleton class that is keyed on the type of the object being
	141	created."""
134	142	if not Singleton.__singletons.has_key(cls):
135	143	Singleton.__singletons[cls] = None