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Commit f8b46cb

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refactor builder and update description
1 parent 01a59f2 commit f8b46cb

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3 files changed

+91
-12
lines changed

3 files changed

+91
-12
lines changed

‎builder.py‎

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# Product class
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class Computer:
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def __init__(self, CPU, RAM, storage, GPU):
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self.CPU = CPU
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self.RAM = RAM
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self.storage = storage
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self.GPU = GPU
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# Builder interface
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class ComputerBuilder:
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def build_CPU(self):
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pass
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def build_RAM(self):
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pass
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def build_storage(self):
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pass
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def build_GPU(self):
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pass
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def get_computer(self):
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pass
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# Concrete builder
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class HighEndComputerBuilder(ComputerBuilder):
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def __init__(self):
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self.computer = Computer("Intel i9", "32GB", "1TB SSD",
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"NVIDIA RTX 3090")
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def build_CPU(self):
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self.computer.CPU = "Intel i9"
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def build_RAM(self):
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self.computer.RAM = "64GB"
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def build_storage(self):
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self.computer.storage = "2TB SSD"
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def build_GPU(self):
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self.computer.GPU = "NVIDIA RTX 3090"
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def get_computer(self):
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return self.computer
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# Director
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class ComputerDirector:
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def __init__(self, builder):
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self.builder = builder
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def construct_computer(self):
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self.builder.build_CPU()
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self.builder.build_RAM()
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self.builder.build_storage()
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self.builder.build_GPU()
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# Client code
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builder = HighEndComputerBuilder()
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director = ComputerDirector(builder)
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director.construct_computer()
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computer = builder.get_computer()
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# Output
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print("Computer specs:")
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print(f"CPU: {computer.CPU}")
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print(f"RAM: {computer.RAM}")
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print(f"Storage: {computer.storage}")
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print(f"GPU: {computer.GPU}")

‎factory.py‎

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Original file line numberDiff line numberDiff line change
@@ -64,19 +64,19 @@ def create_pizza(self, pizza_type):
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if __name__ == "__main__":
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# Creating a Margherita Pizza using the factory
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factory = PizzaFactory()
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margherita_pizza = factory.create_pizza('Margherita')
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pizza = factory.create_pizza('Margherita')
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# Using the created Margherita Pizza
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margherita_pizza.prepare()
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margherita_pizza.bake()
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margherita_pizza.cut()
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margherita_pizza.box()
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pizza.prepare()
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pizza.bake()
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pizza.cut()
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pizza.box()
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# Creating a Pepperoni Pizza using the factory
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pepperoni_pizza = factory.create_pizza('Pepperoni')
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pizza = factory.create_pizza('Pepperoni')
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# Using the created Pepperoni Pizza
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pepperoni_pizza.prepare()
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pepperoni_pizza.bake()
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pepperoni_pizza.cut()
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pepperoni_pizza.box()
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pizza.prepare()
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pizza.bake()
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pizza.cut()
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pizza.box()

‎readme.md‎

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@@ -42,15 +42,21 @@ it's essential to consider the specific requirements of your project.
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In some cases, using global variables might be appropriate, but it's crucial to be mindful of the potential drawbacks mentioned above. Striking a balance and following good design principles will contribute to more maintainable and scalable code.
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## Singleton pattern
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## Singleton Pattern
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The singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance.
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One of the well-known "Gang of Four" design patterns.
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A singleton implementation may use lazy initialization in which the instance is created when the static method is first invoked.
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## Monostate pattern
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## Monostate Pattern
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The monostate pattern will create instances or objects with their own identity that all share the same internal state.
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It is often referred to as the Borg pattern in reference to The Borg in Star Trek.
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While being individuals in their own right, they all share the same collective consciousness or shared state.
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## Factory Pattern
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The Factory Pattern is to define an interface for creating an object, but leave the choice of its type to the subclasses,
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deferring the instantiation to the subclasses. Objects are created by calling a factory method
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instead of calling a constructor.

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