Builder
The complexity of object creation in programming can vary widely. In some cases, objects are straightforward with just a single constructor, which could be either empty or parameterized. However, there are scenarios where object creation is intricate, involving multiple parameters. While the Static Factory Method design pattern offers an alternative approach to constructors, it primarily addresses simpler object creation. For more complex scenarios, we turn to the Builder design pattern.
This pattern is particularly useful when dealing with objects that require a multitude of parameters, some of which might be optional. It offers a clear and flexible way to construct such complex objects. To illustrate this, let’s consider the example of designing a class to represent an email.
In this case, we won’t examine the actual mechanics of sending emails but will focus on the nuances of constructing an email
object that could potentially include various fields...