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**Oliver Drotbohm** @odrotbohm@chaos.social · Mar 23

Oliver Drotbohm @odrotbohm@chaos.social

#jMolecules 2023.3.0 (API 1.10, Integrations 0.25) is out! Improved #HexagonalArchitecture verification and persistence code generation. See the release announcement for details. https://github.com/xmolecules/jmolecules-integrations/releases/tag/0.25.0 ️

⭐ New Features

Overhaul support of Hexagonal Architecture verification #306
Avoid persistence code generation for records not involved in persistence #308
Improve type names of generated classes #...

GitHubRelease 0.25 · xmolecules/jmolecules-integrations⭐ New Features Overhaul support of Hexagonal Architecture verification #306 Avoid persistence code generation for records not involved in persistence #308 Improve type names of generated classes #...

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**Ted M. Young** @jitterted · Feb 15, 2024

Feb 15, 2024

Ted M. Young @jitterted

Once again, #TDD and #HexagonalArchitecture meant that when I hooked up the "real" timer broadcaster (using WebSockets), everything just worked.

Only took 35 lines of WebSocket code and 10 lines of #SpringBoot configuration code and a few #htmx attributes on the HTML page. (Not counting the separate transformer code that generated the HTML.)

**Ted M. Young** @jitterted · Feb 9, 2024

Feb 9, 2024

Ted M. Young @jitterted

I love how IntelliJ IDEA uses my file coloring settings everywhere, so when I'm looking through the Git history, I can quickly see what adapters I've changed (as they're colored in blue).

You can see how I set up these colors in this video: https://youtu.be/lMcbxwJ74P4

Screenshot from IntelliJ IDEA's git history viewer, showing a specific commit's files and directories, which are colored according to the packages they're in: light blue for Inbound Adapters, Orange/Peach for Application Layer, and Green for tests.

#Java #HexagonalArchitecture

**Ted M. Young** @jitterted · Dec 27, 2023

Dec 27, 2023

Ted M. Young @jitterted

In today's #LiveCoding stream with Mike Rizzi (working on his "Song Themes" app), we did quite a bit of Prepare Refactoring to make the behavioral change easy.

We also tried a few different implementations of finding songs by their theme, even though we (at least I) were pretty sure the #Java stream version (using groupingBy) would be the winner.

Lots of interesting discussion as always while we #TDD the code. Ended with fixing the failing #SpringBoot test and repackaging according to #HexagonalArchitecture.

https://youtube.com/live/AmUKA42XtuQ

Full playlist for all episodes: https://www.youtube.com/playlist?list=PLBHctPrH7Z2-nyaHBETfklyqddmEZUp95

YouTube"Song Themes" Episode 4: Spring Boot app creation with Mike RizziBy JitterTed

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**Ted M. Young** @jitterted · Nov 19, 2023

Nov 19, 2023

Ted M. Young @jitterted

Case in point, it took me years of trial and error (coding and teaching) to finally have a clear understanding of Application vs. Domain layers in an app that uses #HexagonalArchitecture and #DomainDrivenDesign.

Now folks that I work with can get the benefit of not just that knowledge, but also the _why_ behind it.

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**Ted M. Young** @jitterted · Oct 25, 2023

Oct 25, 2023

Ted M. Young @jitterted

Some folks have asked for links to my #TDD developed app repositories:

"Ensembler" is my ensemble event management system that I use to manage my ensemble programming groups. (Also uses #DomainDrivenDesign inside of a #HexagonalArchitecture structure.)

https://github.com/jitterted/ensembler

"Kid Money Manager" (aka Kid Bank) is an older app that was created to manage my son's money before he was old enough for a bank account. (A bit of a strange structure as it was my older thinking about Hex Arch.)

https://github.com/tedyoung/kid-bank

p.s. The above have never had a bug discovered in production that was due to coding errors, only configuration (e.g., wrong API keys).

GitHubGitHub - jitterted/ensembler: Ensembler: the Remote Ensemble Registration SystemEnsembler: the Remote Ensemble Registration System - GitHub - jitterted/ensembler: Ensembler: the Remote Ensemble Registration System

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**Ted M. Young** @jitterted · Oct 2, 2023

Oct 2, 2023

Ted M. Young @jitterted

btw, for those who have been following along, the code for Ensembler is open-source (#Java, #SpringBoot, #HexagonalArchitecture

https://github.com/jitterted/ensembler

**Ted M. Young** @jitterted · Sep 28, 2023 *

Sep 28, 2023 *

Ted M. Young @jitterted

@kerfuffle Thanks for this!

Looks like I need to update and publish my #Java and #SpringBoot #HexagonalArchitecture project that uses Maven modules (I have a strong aversion to Gradle).

(I also adopt Application & Domain layers for the inside of the hexagon, as well as not having ports as Java interfaces on the inbound/driving/primary side.)

**Ted M. Young** @jitterted · Sep 28, 2023

Sep 28, 2023

Ted M. Young @jitterted

In case you missed the discussion of project structure with me and Dan Vega on #Spring Office Hours, you can catch up with the recording:

https://www.youtube.com/watch?v=aIuZySWPNI4

YouTubeSpring Office Hours: Episode 53 - Structuring your Spring Boot ApplicationsBy SpringDeveloper

#HexagonalArchitecture #SeparationOfConcerns #SpringBoot

**Ted M. Young** @jitterted · Mar 7, 2023

Mar 7, 2023

Ted M. Young @jitterted

Sales end tomorrow (and so does the 40% early access discount)...

#HexagonalArchitecture #Java #TDD #Testing

https://ted.dev/refactoring-to-hexagonal-architecture.html?utm_source=mastodon&utm_medium=social&utm_campaign=mar7

https://sfba.social/@jitterted/109977797637493492

Ted M. YoungRefactoring to Hexagonal Architecture Course by Ted M. YoungLearn how to Make Your Java Code More Testable with Hexagonal Architecture

**Ted M. Young** @jitterted · Feb 24, 2023

Feb 24, 2023

Ted M. Young @jitterted

My "More Testable Code with Hexagonal Architecture" talk is now available, with the video and slides.

Thanks to @asciamanna and PhillyXP for hosting me.

https://ted.dev/articles/2023/02/21/more-testable-code-with-hexagonal-architecture-talk/?utm_source=mastodon&utm_medium=social&utm_campaign=newpost

Ted M. YoungMore Testable Code with Hexagonal Architecture (Talk) | Ted M. YoungVideo recording of my presentation to PhillyXP on how Separation of I/O Concerns makes code more testable.

#Architecture #Testing #TDD

**Ted M. Young** @jitterted · Feb 16, 2023

Feb 16, 2023

Ted M. Young @jitterted

In a little less than 3 hours (4:30pm EST, 1:30pm PST) I'll be talking about how I write Testable Code using Hexagonal Architecture.

If you can't make it, don't worry, there'll be a recording!

https://www.meetup.com/phillyxp/events/290999144/

MeetupMore Testable Code with Hexagonal Architecture - with Ted M. Young, Thu, Feb 16, 2023, 4:30 PM | Meetup**More Testable Code with Hexagonal Architecture** Hexagonal Architecture provides a set of simple and specific rules to organize your system's code. These rules make it e

#TDD #HexagonalArchitecture #SCION

**Ted M. Young** @jitterted · Feb 1, 2023

Feb 1, 2023

Ted M. Young @jitterted

Latest video from my "Creating Ensembler" series, "Episode 4: Registration"

Watch Now: https://youtu.be/Xer-o5GmKSU

Thumbnail that says "TDDing an app into production" and "Spring Boot", "Hexagonal Architecture"

#TDD #SpringBoot #HexagonalArchitecture

**Ted M. Young** @jitterted · Jan 26, 2023

Jan 26, 2023

Ted M. Young @jitterted

Episode #4 of my live coding series, developing my "Ensembler" ensemble scheduling application is now up on YouTube.

https://youtu.be/Xer-o5GmKSU

What is Ensembler? It's an app that I use every week to schedule mob programming sessions with my clients, allowing them to sign up for available ensembles, ensuring that I don't overbook.

The app was developed from scratch, following test-driven development and domain-driven design techniques.

YouTubeCreating Ensembler - Episode 4: "Registration" (Java, Spring, TDD, Hexagonal Architecture)By JitterTed

#Java #TDD #SpringBoot