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19 lines
454 B
Python
19 lines
454 B
Python
"""Refactored Car & Engine example that demonstrates inversion of control."""
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class Engine(object):
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"""Example engine."""
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class Car(object):
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"""Example car."""
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def __init__(self, engine):
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"""Initializer."""
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self.engine = engine # Engine is an "injected" dependency
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if __name__ == '__main__':
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engine = Engine() # Application creates Engine's instance
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car = Car(engine) # and inject it into the Car's instance
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