design-patterns/creational/abstract_factory/main.py
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Observer (#20)
* doc: create package & update general TOCs

* doc: add documentation

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2020-10-06 08:25:18 +02:00

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Python

"""The client code can work with any concrete factory class."""
from creational.abstract_factory.AbstractFactory import AbstractFactory
from creational.abstract_factory.factories import ConcreteFactory1, ConcreteFactory2
def client_code(factory: AbstractFactory) -> None:
"""
The client code works with factories and products only through abstract
types: AbstractFactory and AbstractProduct. This lets you pass any factory
or product subclass to the client code without breaking it.
"""
product_a = factory.create_product_a()
product_b = factory.create_product_b()
print(f"{product_b.useful_function_b()}")
print(f"{product_b.another_useful_function_b(product_a)}", end="")
print("Client: Testing client code with the first factory type:")
client_code(ConcreteFactory1())
print("\n")
print("Client: Testing the same client code with the second factory type:")
client_code(ConcreteFactory2())