blob: 66e56c2b16c7c7b7a8992f0c604057b1e4000871 (
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class LazyMixin(object):
lazy_properties = []
def __init__(self):
self.__baked__ = False
def __getattribute__(self, attr):
val = object.__getattribute__(self, attr)
if val is not None:
return val
else:
self.__prebake__()
return object.__getattribute__(self, attr)
def __bake__(self):
""" This method should be overridden in the derived class. """
raise NotImplementedError(" '__bake__' method has not been implemented.")
def __prebake__(self):
if self.__baked__:
return
self.__bake__()
self.__baked__ = True
def __bake_it__(self):
self.__baked__ = True
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