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Creational Pattern -- Singleton Pattern #450

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Creational Pattern -- Singleton Pattern #450

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04f3e58
Creational Pattern -- Singleton Pattern
louliu888 Aug 15, 2021
2d0d8c3
Structural Pattern -- Composite
louliu888 Aug 15, 2021
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Creational Pattern -- Singleton Pattern
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@louliu888
louliu888 committed Aug 15, 2021
commit 04f3e5844e46616bab6f082c35d45ba38adb2f15
7 changes: 7 additions & 0 deletions app/coordinates.py
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Expand Up @@ -5,7 +5,14 @@ class Coordinates:
"""
A position on earth using decimal coordinates (latitude and longitude).
"""
__instance = None

@staticmethod
def getInstance():
if Coordinates.__instance == None:
Coordinates
return __instance

def __init__(self, latitude, longitude):
self.latitude = latitude
self.longitude = longitude
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