• What to look for:
  • Same set of objects belonging to different groups
• Intent: creating families of related objects without specifying concrete classes
  • Grouped creation of set of related objects without knowing their concrete classes (e.g., UI-theme from dark to light)
  • Basically like creating lots of abstract products that are somehow related to each other?
• Use cases
  • Cross-platform/theming UI-toolkit
  • Connecting to several databases
  • Configuration and environmental set-up
• Components
  • Abstract Factory
    • Declares the interface for the creation of the products in the family
  • Concrete factory
    • Implements the factory methods in the Abstract Factory
  • Abstract product
    • Defines an interface for a type of product object. There will be one Abstract product for each type of product in the family
  • Concrete product
    • Implements an Abstract Product interface
  • Client
    • Oblivious to concrete factories and concrete factories and concrete products .It just knows abouts the abstract factories (for which the all have the same products with the same methods (polymorphism))
  • Flow
    • Client chooses a concrete factory (e.g., it instantiates DarkThem())
    • Client request products from the factory (e.g., factory.create_button())
    • Factory creates concrete product
    • Client uses abstract product
  • Code sample

EXTRA

• Staging is one the three phases of code development (dev, staging, production). It is an scenario that very closely resembles production without being exactly it