abstract_factory_pattern.rb

class RestaurantServer
  def initialize(meal_factory)
    @meal_factory = meal_factory
  end
  
  
  def serve!
    @meal_factory.new_utensil
    @meal_factory.new_dish
  end
end

class SushiMealFactory
  def new_dish
    MaguroSashimi.new
  end
  
  def new_utensil
    Chopsticks.new
  end
end

class SteakMealFactory
  def new_dish
    FiletMignon.new
  end
  
  def new_utensil
    Knife.new
  end
end
#kullanımı
meal_factory = SushiMealFactory.new
restaurant_server = RestaurantServer.new(meal_factory)
restaurant_server.serve!