C/O - Abstract Factory

• Category: creational
• Type: object
• Motivation: one factory makes family products

do {

  // Client
  let doorFactory = WoodenDoorFactory()

  let door = doorFactory.makeDoor()
  let expert = doorFactory.makeFittingExpert()

  door.getDescription()
  expert.getDescription()
}

protocol Door
{
    func getDescription()
}

class WoodenDoor: Door
{
    func getDescription()
    {
        print("I am a wooden door")
    }
}

protocol FittingExpert
{
    func getDescription()
}

class Carpenter: FittingExpert
{
    func getDescription()
    {
        print("I can only fit wooden doors")
    }
}

protocol DoorFactory
{
    func makeDoor(): Door
    func makeFittingExpert(): FittingExpert

}

class WoodenDoorFactory: DoorFactory
{
    func makeDoor() -> WoodenDoor
    {
        return WoodenDoor()
    }

    func makeFittingExpert() -> Carpenter
    {
        return Carpenter()
    }
}