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add instance and init to backing store factory singleton #252

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add instance and init to backing store factory singleton #252

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10 changes: 10 additions & 0 deletions kiota_abstractions/store/backing_store_factory_singleton.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@ class BackingStoreFactorySingleton:
"""
Ensures that there is only a single instance of a Backing Store Factory.
"""
__instance = None
__init_arg = None

def __new__(cls, *args, **kwargs):
"""
Expand All @@ -34,11 +36,19 @@ def __new__(cls, *args, **kwargs):
cls.__instance = super(BackingStoreFactorySingleton, cls).__new__(cls)
return cls.__instance

def __init__(self,
backing_store_factory: BackingStoreFactory = None) -> None:
if backing_store_factory is None:
backing_store_factory = self.__class__.__init_arg
self._backing_store_factory = backing_store_factory

@classmethod
def get_instance(cls):
"""
Returns the instance of the class.
"""
if cls.__instance is None:
cls.__instance = cls()
return cls.__instance

def __init__(self, backing_store_factory: BackingStoreFactory) -> None:
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