Programming

23348 readers

261 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Follow the programming.dev instance rules
Keep content related to programming in some way
If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities !webdev@programming.dev

founded 2 years ago

MODERATORS

snowe@programming.dev

Ategon@programming.dev

MaungaHikoi@lemmy.nz

UlrikHD@programming.dev

112

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

90 comments fedilink hide all child comments

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?

you are viewing a single comment's thread
view the rest of the comments

[–] gezero@lemmy.bowyerhub.uk 4 points 1 day ago* (last edited 1 day ago)

If you are creating interfaces for classes that will not have second implementation, that sounds suspicious, what kind of classes are you abstracting? Are those classes representing data? I think I would be against creating interfaces for data classes, I would use records and interfaces only in rare circumstances. Are you complaining about abstracting classes with logic, as in services/controllers? Are you creating tests for those? Are you mocking external dependencies for your tests? Because mocks could also be considered different implementations for your abstractions. Some projects I saw definitely had taken SOLID principles and made them SOLID laws... Sometimes it's an overzealous architect, sometimes it's a long-lasting project with no original devs left... The fact that you are thinking about it already puts you in front of many others...

SOLID principles are principles for Object Oriented programming so as others pointed out, more functional programming might give you a way out.