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Introduction

Creational design patterns deal with the process of object creation, providing blueprints for creating objects in a systematic and efficient manner. They are like recipes that guide the creation of various objects, ensuring consistency and flexibility in constructing complex systems.

Definition​

Creational design patterns focus on the mechanism of object creation, providing solutions for creating objects in a way that enhances flexibility, reusability, and understanding of the system. They offer different techniques for object instantiation, addressing issues such as when to create an object, who should create it, and how it should be created. These patterns contribute to the overall organization and structure of a software system during the creation of objects.

Considerations​

Considerations in creational design patterns include factors such as flexibility, maintainability, and scalability. Designers must weigh the benefits and trade-offs of each pattern based on the specific requirements and constraints of the system.

Objectives​

Abstract Factory Pattern​

  • Objective:
    Provide an interface for creating families of related or dependent objects without specifying their concrete classes.
  • Summary:
    The Abstract Factory Pattern enables the creation of families of related objects, ensuring compatibility and consistency between them, making it suitable for scenarios where different parts of a system need to work seamlessly together.

Builder Pattern​

  • Objective:
    Separate the construction of a complex object from its representation, allowing the same construction process to create different representations.
  • Summary:
    The Builder Pattern involves breaking down the construction of a complex object into step-by-step processes, allowing flexibility in creating various representations without compromising the construction process.

Factory Method Pattern​

  • Objective:
    Define an interface for creating an object but let subclasses alter the type of objects that will be created.
  • Summary:
    The Factory Method Pattern provides an interface for creating objects, allowing subclasses to decide the specific types of objects to be instantiated, enhancing flexibility in object creation.

Prototype Pattern​

  • Objective:
    Enable the creation of objects by copying an existing object, known as the prototype.
  • Summary:
    The Prototype Pattern allows the efficient creation of new objects by duplicating existing ones, serving as a template for generating multiple instances of similar objects.

Singleton Pattern​

  • Objective:
    Ensure a class has only one instance and provide a global point of access to that instance.
  • Summary:
    The Singleton Pattern guarantees a single instance of a class, preventing unnecessary duplication of resources and ensuring a consistent state throughout the application.