Latest Posts

Class Relationships – When Has-A Shows a Relation

📅 March 19, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

Our language can blur the distinctions of class relationships in designing our solution. The “has-a” determination is often confused by how the English language can translate those words. We also have to…

Read article →

Is A and Has A Concepts in Object-Oriented Design

📅 March 12, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

The ideas of “is a” and “has a” are often discussed as part of object-oriented design. These concepts may seem simple and obvious. However, they can often be confused, and complex systems…

Read article →

Granular Interfaces – How Much OO Is Practical?

📅 March 12, 2021 • A Practical Approach To Object-Oriented • ⏱ 3 minutes read

The ideas of cohesion and coupling point us to paths that either place functionality in smaller or larger classes. We discuss granular interfaces in this episode as an introduction to those “right-sizing”…

Read article →

Inheritance – Polymorphism In A Hierarchical Manner

📅 March 12, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

We switch gears in this episode and start to look at inheritance. This is a core feature of object-oriented design and the most recognizable attribute. Child classes are utilized through polymorphic support. …

Read article →

Interfaces – An Object-Oriented Contract For Usage

📅 March 6, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

This episode, we look at interfaces. These are not supported by all languages. However, when they are supported, they are very useful. The interface specification allows us to provide language-based constraints for…

Read article →

Flexibility in OOP – Build in hooks for change

📅 March 4, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

One of the essential concepts to understand is flexibility in OOP. A good design requires the ability to extend it. There are ways to do this. However, they require us to incorporate…

Read article →

Code Consistency – Critical For Practical Polymorphism

📅 March 4, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

One of the challenges of good polymorphic design is code consistency. We are building a way to communicate with developers. Therefore, our language or syntax needs to be easy to understand. Likewise,…

Read article →

Polymorphism Without Side Effects – Object-Oriented Clarity

📅 February 27, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

We discussed in the previous episode how polymorphic behavior gives us a form of a common language for objects. Thus we need to consider the idea of polymorphism without side effects, so…

Read article →

Polymorphism Overview – Reducing code size and a better user experience

📅 February 25, 2021 • A Practical Approach To Object-Oriented • ⏱ 3 minutes read

We start the next series of episodes with a polymorphism overview. This is a core concept for proper object-oriented design. Likewise, we will dig into several practical ways to use this. Polymorphism…

Read article →

Data Hiding – Practical Accessors

📅 February 22, 2021 • A Practical Approach To Object-Oriented • ⏱ 2 minutes read

We have discussed the accessor levels of our data. In most environments, the three levels are public, protected, and private. In this episode, we go deeper into these concepts and a practical…

Read article →