Template Method
Explore the Template Method, a behavioral design pattern that defines a fixed algorithm structure in a parent class while deferring specific steps to subclasses. Understand how this pattern helps avoid code duplication by implementing common operations once and customizing varying parts. This lesson also covers practical application examples, key implementation points, and its relationship with other design patterns.
We'll cover the following...
Let’s take a top-down approach to understand this design pattern.
Definition
A template method is a behavioral design pattern. It’s used to create a method in the parent class and defer some of the implementation steps to the subclasses.
Explanation
According to the definition above, we would have a parent class containing the template method. In this method, we would have two types of operations:
- Operation(s) that are the same for all of its child classes.
- Operation(s) that are different for