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How much are SOLID principles in OOP programming (and JVM languages specifically) just a mindless following of a set of ideas that aren't always the best solution? (programming.dev)

submitted 1 day ago by iByteABit@programming.dev to c/programming@programming.dev

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As a Java engineer in the web development industry for several years now, having heard multiple times that X is good because of SOLID principles or Y is bad because it breaks SOLID principles, and having to memorize the "good" ways to do everything before an interview etc, I find it harder and harder to do when I really start to dive into the real reason I'm doing something in a particular way.

One example is creating an interface for every goddamn class I make because of "loose coupling" when in reality none of these classes are ever going to have an alternative implementation.

Also the more I get into languages like Rust, the more these doubts are increasing and leading me to believe that most of it is just dogma that has gone far beyond its initial motivations and goals and is now just a mindless OOP circlejerk.

There are definitely occasions when these principles do make sense, especially in an OOP environment, and they can also make some design patterns really satisfying and easy.

What are your opinions on this?

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[–] ugo@feddit.it 17 points 1 day ago* (last edited 1 day ago)

I call it mario driven development, because oh no! The princess is in a different castle.

You end up with seemingly no code doing any actual work.

You think you found the function that does the thing you want to debug? Nope, it defers to a different function, which calls a a method of an injected interface, which creates a different process calling into a virtual function, which loads a dll whose code lives in a different repo, which runs an async operation deferring the result to some unspecified later point.

And some of these layers silently catch exceptions eating the useful errors and replacing them with vague and useless ones.