Design Pattern Tutorial. Decorator Pattern Simplified

// Base class
public abstract class Lightsaber
{
    public abstract void Assemble();
}

// Concrete implementation of the base class
public class StandardLightsaber : Lightsaber
{
    public override void Assemble()
    {
        Console.WriteLine("Assembling standard lightsaber");
    }
}

// Decorator class
public class HiltDesignDecorator : Lightsaber
{
    private Lightsaber _lightsaber;
    private string _hiltDesign;

    public HiltDesignDecorator(Lightsaber lightsaber, string hiltDesign)
    {
        _lightsaber = lightsaber;
        _hiltDesign = hiltDesign;
    }

    public override void Assemble()
    {
        _lightsaber.Assemble();
        Console.WriteLine($"Adding {_hiltDesign} hilt design to lightsaber");
    }
}

// Decorator class
public class BladeColorDecorator : Lightsaber
{
    private Lightsaber _lightsaber;
    private string _bladeColor;

    public BladeColorDecorator(Lightsaber lightsaber, string bladeColor)
    {
        _lightsaber = lightsaber;
        _bladeColor = bladeColor;
    }

    public override void Assemble()
    {
        _lightsaber.Assemble();
        Console.WriteLine($"Adding {_bladeColor} blade color to lightsaber");
    }
}

Then, you can use the decorator classes to create customized lightsabers:

Lightsaber lightsaber = new HiltDesignDecorator(new BladeColorDecorator(new StandardLightsaber(), "green"), "gold");
lightsaber.Assemble();

This would output:

Assembling standard lightsaber
Adding green blade color to lightsaber
Adding gold hilt design to lightsaber

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Yoda and the Decorator Pattern: A Lesson for Luke

Comments

Software Development and System Design

Opinion: Strategy Pattern + Factory Pattern will be the most-used design pattern in your career

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Opinion: Strategy Pattern + Factory Pattern will be the most-used design pattern in your career

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