Master the Design of Classes (Part 6)
Watch the full video: • Master the Design of Classes
Primitive obsession is bad for your design.
It makes it impossible to represent valid states because the primitive type imposes an artificial limitation.
Why does this book model represent the edition with an int?
I understand it is fine so long as we only have to model the first, the second, the third edition.
The long video explains it all. This primitive model is not expressive. What if an annual edition of a book appeared?
2024 differs from 3 in the meaning, but we lost the meaning, haven't we?
What about seasonal editions, like the Summer 2024 edition?
That is where int even becomes insufficient to represent the data.
The solution to such open-ended problems is to use a polymorphic type, and let concrete implementations of that type model concrete variants.
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👨 About Me 👨
Hi, I’m Zoran, I have more than 20 years of experience as a software developer, architect, team lead, and more. I have been programming in C# since its inception in the early 2000s. Since 2017 I have started publishing professional video courses at Pluralsight and Udemy and by this point, there are over 100 hours of the highest-quality videos you can watch on those platforms. On my YouTube channel, you can find shorter video forms focused on clarifying practical issues in coding, design, and architecture of .NET applications.❤️
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