C# implementation of Builder pattern

The builder pattern Separates the construction of a complex object from its representation.

The players in this pattern are:
1. Product (Room)
Represents the complex object which includes many classes(parts)
2. Builder (RoomBuilder)
Specifies an abstract class or an interface for creating parts of a Product object
3. ConcreteBuilder (WoodBuilder, GlassBuilder)

• Constructs parts of the product by implementing the Builder class/interface

• provides a way for retrieving the product

4. Director (House)
Constructs an object (room) using the Builder class/interface

So, you use the Builder pattern when:

• the object to be constructed has many parts and might have different representations.

• you need control over the construction process.