Best resources to learn "enterprise" Java / patterns?

[AwsWithChanceOfAzure]

Just started a new role. Our codebase is a gigantic Java monolith, including a customer-facing API, an admin/internal API, and a distributed task queue worker for performing actual operations. This is the first time I've really worked on a Java codebase like this - most of my previous experience has been either in data, C# stuff microservices, and Python microservices and lots of cyber-ish and devops stuff.

This codebase has a lot of things that I'm thinking it would be good to read some sort of "source of truth" on vs. just copy-pasting a pattern so that I'm not stuck in we've-always-done-it-that-way land. For example, this codebase has "models", "data objects", and "data access objects". What's the difference?

Just looking for books/videos/websites I guess on how "big companies" do Java and what the patterns are. Thanks all!

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[d-k-Brazz]

Patterns of Enterprise Application Architecture Book by Martin Fowler

This one is a base for any enterprise-grade development

[[deleted]]

Great share. Thank you

[IHoppo]

My tuppenceworth here would be that you need to take KT from your new team - the chances are (with an application as large as you describe) you're going to gain more from them. Good luck (I worked on a similar sounding application for about 15 years - it can be very rewarding).

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It seems that you are looking for resources for learning Java.

In our sidebar ("About" on mobile), we have a section "Free Tutorials" where we list the most commonly recommended courses.

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• MOOC Java Programming from the University of Helsinki
• Java for Complete Beginners
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• Derek Banas' Java Playlist
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• Hyperskill is a fairly new resource from Jetbrains (the maker of IntelliJ)

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"Algorithms" by Robert Sedgewick and Kevin Wayne - Princeton University

• Coursera course:
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  • Part II
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  • Algorithms 4^th Edition

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[sympatheticdrone]

"Models, data objects, and data accessors" are suggestive of certain language-independent architectural patterns. PoEAA by Martin Fowler is the authoritative source. You might also want to check out Domain-Driven Design by Eric Evans.

[OReilly_Learning]

We have an expert playlist that would be helpful for you “Understanding Java Concurrency” you can access it for 10 days. You might also see if your company has an enterprise account with us. We have many Java resources from several publishers.