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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 year ago by 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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[–] 1 point 1 year ago

At that scale, contracts are multiple interfaces, not just one.

Good job all the compilers I can remember since the last 30 years or so can compile more than one file into a project then.

We're taking past each other. I'll saying that I don't see how adding networking makes anything simpler and you're saying that you need a bunch of network protocols. Why?

I'm not saying you shouldn't ever have networking, but then again, I wouldn't call it a microservices architecture if you're only using networking when it's necessary. At that point you just have services because it's genuinely a network.

It's not microservices unless you have unnecessarily added a bunch of networking, and unnecessarily adding a bunch of networking is innecessarily adding a bunch of complexity that I can't see makes anything better.

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