What are the best practices for using the Template Method Pattern?

What are the best practices for using the Template Method Pattern?

The Template Method Pattern defines the skeleton of an algorithm in a method, deferring some steps to subclasses. Best practices include keeping the template method simple, ensuring subclasses only override necessary methods, and using hooks for optional behavior.

Can you give an example of this pattern in action?

Sure! Imagine a class DataProcessor with a method processData(). It defines steps like readData(), processData(), and saveData(). Subclasses can implement readData() differently based on the data source.

What are the advantages of using this pattern?

The advantages include code reusability, easier maintenance, and a clear structure for algorithms, which promotes consistency across subclasses.

Are there any common pitfalls to avoid?

Yes, common pitfalls include making the template method too complex, overusing inheritance, and not providing enough flexibility for subclasses.