Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
xMolecules
Search
Henning Schwentner
December 01, 2022
Programming
3
210
xMolecules
Living architecture documentation
Henning Schwentner
December 01, 2022
Tweet
Share
More Decks by Henning Schwentner
See All by Henning Schwentner
Domain-Driven Design (Tutorial)
hschwentner
13
22k
Domain-Driven Transformation
hschwentner
2
2k
Software Architecture
hschwentner
6
2.2k
Model Pollution
hschwentner
1
130
Value and Record Types
hschwentner
1
1k
Domain Storytelling
hschwentner
4
2.5k
UNIX, Linux, and Command Line Basics
hschwentner
0
130
From Legacy to Cloud
hschwentner
0
180
Überzeugen
hschwentner
7
1.2k
Other Decks in Programming
See All in Programming
ベクトル検索システムの気持ち
monochromegane
31
9.9k
タイムゾーンの奥地は思ったよりも闇深いかもしれない
suguruooki
1
590
DataStoreをテストする
mkeeda
0
280
The Weight of Data: Rethinking Cloud-Native Systems for the Age of AI
hollycummins
0
270
5年間継続して開発した自作OSSの記録
bebeji_nappa
0
180
地域ITコミュニティの活性化とAWSに移行してみた話
yuukis
0
230
S3静的ホスティング+Next.js静的エクスポート で格安webアプリ構築
iharuoru
0
220
Agentic Applications with Symfony
el_stoffel
2
270
Empowering Developers with HTML-Aware ERB Tooling @ RubyKaigi 2025, Matsuyama, Ehime
marcoroth
1
280
スモールスタートで始めるためのLambda×モノリス(Lambdalith)
akihisaikeda
2
240
リストビュー画面UX改善の振り返り
splcywolf
0
130
remix + cloudflare workers (DO) docker上でいい感じに開発する
yoshidatomoaki
0
130
Featured
See All Featured
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Faster Mobile Websites
deanohume
306
31k
How to Think Like a Performance Engineer
csswizardry
23
1.5k
The Language of Interfaces
destraynor
157
24k
Thoughts on Productivity
jonyablonski
69
4.6k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.2k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
13
1.4k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
227
22k
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
Practical Orchestrator
shlominoach
186
10k
Mobile First: as difficult as doing things right
swwweet
223
9.6k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
135
33k
Transcript
Starring Directed By Presented by With
None
None
https://hschwentner.io
@hschwentner
! " # $
@hschwentner
BankAccount withdraw() deposit() Amount
BankAccount withdraw() deposit() Amount
@hschwentner Domain-Driven Design Eric Evans
@hschwentner Entity vs. Value - Identity - Life cycle -
Can be mutable - No identity - Always immutable Contract Map Name Length 12.5 m “John Miller”
Entity Value Object Aggregate Service Factory Repository Tactical Design
«Entity» BankAccount withdraw() deposit() «Value Object» Amount
«stereotype» Value Object «stereotype» Entity ??? «stereotype» Identity
xMolecules
None
Hexagonal Architecture Layerered Architecture Onion Architecture Clean Architecture
@hschwentner How To Express Architecture?
class Account { public void deposit(Amount amount) //... public void
withdraw(Amount amount) //... }
class AccountEntity { public void deposit(Amount amount) //... public void
withdraw(Amount amount) //... }
class Account extends Entity { public void deposit(Amount amount) //...
public void withdraw(Amount amount) //... }
class Account extends Entity<IBAN> { public void deposit(Amount amount) //...
public void withdraw(Amount amount) //... }
import org.jmolecules.ddd.types.Entity; class Account extends Entity<IBAN> { public void deposit(Amount
amount) //... public void withdraw(Amount amount) //... }
@Entity class Account { public void deposit(Amount amount) //... public
void withdraw(Amount amount) //... }
import org.jmolecules.ddd.annotation.Entity; @Entity class Account { public void deposit(Amount amount)
//... public void withdraw(Amount amount) //... }
@hschwentner How To Express Architecture?
class Account { public void deposit(Amount amount) //... public void
withdraw(Amount amount) //... }
class AccountEntity { public void deposit(Amount amount) //... public void
withdraw(Amount amount) //... }
class Account : Entity { public void deposit(Amount amount) //...
public void withdraw(Amount amount) //... }
class Account : Entity<IBAN> { public void deposit(Amount amount) //...
public void withdraw(Amount amount) //... }
using NMolecules.DDD; class Account : Entity<IBAN> { public void deposit(Amount
amount) //... public void withdraw(Amount amount) //... }
[Entity] class Account { public void deposit(Amount amount) //... public
void withdraw(Amount amount) //... }
using NMolecules.DDD; [Entity] class Account { public void deposit(Amount amount)
//... public void withdraw(Amount amount) //... }
[Entity] class Account { [Identity] public IBAN IBAN { get;
} public void deposit(Amount amount) //... public void withdraw(Amount amount) //... }
@hschwentner How To Express Architecture?
class Account { public function deposit(Amount $amount) //... public function
withdraw(Amount $amount) //... }
class AccountEntity { public function deposit(Amount $amount) //... public function
withdraw(Amount $amount) //... }
class Account extends Entity { public function deposit(Amount $amount) //...
public function withdraw(Amount $amount) //... }
/** * @extends Entity<IBAN> */ class Account extends Entity {
public function deposit(Amount $amount) //... public function withdraw(Amount $amount) //... }
use PHPMolecules\DDD\Type\Entity; class Account extends Entity { public function deposit(Amount
$amount) //... public function withdraw(Amount $amount) //... }
#[Entity] class Account { public function deposit(Amount $amount) //... public
function withdraw(Amount $amount) //... }
use PHPMolecules\DDD\Annotation\Entity; #[Entity] class Account { public function deposit(Amount $amount)
//... public function withdraw(Amount $amount) //... }
@hschwentner Why Express Architecture?
Documentation Verification Boilerplate Reduction
@hschwentner Documentation
@hschwentner ! " «Entity» XXX «Value Object» YYY ??
None
@hschwentner Verification
@hschwentner value Architecture Rules entity allowed forbidden
None
@AnalyzeClasses(packagesOf = ArchitectureTests.class) class ArchitectureTests { @ArchTest ArchRule ddd =
JMoleculesDddRules.all(); }
None
PHPStan Psalm Phan PHPArkitect PHPArch
@hschwentner Boilerplate Reduction
@javax.persistence.Entity class BankAccount { /*...*/ } @javax.persistence.???.Embeddable class Amount {
/*...*/ }
@hschwentner jmolecules-bytebuddy jmolecules-jpa jmolecules-spring jmolecules-jackson jmolecules-intellij
@hschwentner Boilerplate Reduction
???
@hschwentner nmolecules-ef nmolecules-roslyn nmolecules-rider
@hschwentner Boilerplate Reduction
/** * @ORM\Entity * @ORM\Table(name="bank_accounts") */ class BankAccount { /**
* @ORM\Id * @ORM\GeneratedValue * @ORM\Column(type="integer") */ private IBAN iban; /*...*/ }
@hschwentner phpmolecules-doctrine phpmolecules-symphony phpmolecules-serializer phpmolecules-phpstorm
@hschwentner Installation
<dependency> <groupId>org.jmolecules</groupId> <artifactId>jmolecules-ddd</artifactId> <version>1.4.0</version> </dependency>
@hschwentner Installation
> dotnet add package NMolecules.DDD
// Install NMolecules.DDD as a Cake Addin #addin nuget:?package=NMolecules.DDD&version=0.2.1 //
Install NMolecules.DDD as a Cake Tool #tool nuget:?package=NMolecules.DDD&version=0.2.1
@hschwentner Installation
$ composer require --dev xmolecules/phpmolecules
@hschwentner LeasingNinja.io
None
Bibliography Evans, Eric. Domain-Driven Design: Tackling Complexity in the Heart
of Software. Boston: Addison-Wesley, 2004. Hofer, Stefan and Henning Schwentner. Domain Storytelling: a Collaborative, Visual, and Agile Way to Develop Domain-Driven Software. Boston: Addison-Wesley, 2022.
None
Henning Schwentner ⌂ https://hschwentner.io @hschwentner
[email protected]