Builder dizayn shabloni nima?

Builder dizayn shabloni murakkab ob'ektlarni bosqichma-bosqich yaratish uchun mo'ljallangan. U ob'ektni qurish jarayonini uning tasviridan ajratadi, shuning uchun bir xil qurilish jarayonidan foydalanib, turli xil tasvirlar yaratish mumkin.

Asosiy komponentlar:

• Builder: Ob'ektning qismlarini yaratish uchun metodlarni belgilovchi interfeys yoki abstrakt sinf.
• ConcreteBuilder: Builder interfeysining amalga oshirilishi, ob'ekt qismlarini quradi va yig'adi.
• Director: ConcreteBuilder metodlarini chaqirish tartibini belgilaydi, ob'ektni yaratish uchun. Ixtiyoriy komponent.
• Product: Builder shabloni yordamida yaratiladigan murakkab ob'ekt.

Afzalliklar:

• Murakkab ob'ektlarni bosqichma-bosqich yaratishga imkon beradi.
• Qurilish jarayonini yaxshiroq nazorat qilish imkonini beradi.
• Ob'ektning ichki tasvirini o'zgartirish imkonini beradi.
• Bir xil ob'ektning turli variantlarini yaratishni osonlashtiradi.

Misol:

// Mahsulot
public class Car
{
    public string Engine { get; set; }
    public string Color { get; set; }
    public int Wheels { get; set; }

    public void Display()
    {
        Console.WriteLine($"Moshina bilan dvigatel: {Engine}, Rangi: {Color}, Rul: {Wheels}");
    }
}

// Builder
public interface ICarBuilder
{
    void BuildEngine();
    void BuildColor();
    void BuildWheels();
    Car GetResult();
}

// ConcreteBuilder
public class SportsCarBuilder : ICarBuilder
{
    private Car _car = new Car();

    public void BuildEngine()
    {
        _car.Engine = "V8";
    }

    public void BuildColor()
    {
        _car.Color = "Qizil";
    }

    public void BuildWheels()
    {
        _car.Wheels = 4;
    }

    public Car GetResult()
    {
        return _car;
    }
}

// Director
public class CarDirector
{
    private ICarBuilder _builder;

    public CarDirector(ICarBuilder builder)
    {
        _builder = builder;
    }

    public void Construct()
    {
        _builder.BuildEngine();
        _builder.BuildColor();
        _builder.BuildWheels();
    }
}

// Foydalanish
public class Program
{
    public static void Main(string[] args)
    {
        ICarBuilder builder = new SportsCarBuilder();
        CarDirector director = new CarDirector(builder);

        director.Construct();
        Car sportsCar = builder.GetResult();
        sportsCar.Display();
    }
}