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
260
xMolecules
Living architecture documentation
Henning Schwentner
December 01, 2022
Tweet
Share
More Decks by Henning Schwentner
See All by Henning Schwentner
Software Architecture
hschwentner
6
2.4k
Model Pollution
hschwentner
1
230
Event Storming
hschwentner
3
1.3k
Domain-Driven Design (Tutorial)
hschwentner
13
22k
Domain-Driven Transformation
hschwentner
2
2.1k
Value and Record Types
hschwentner
1
1.1k
Domain Storytelling
hschwentner
4
2.7k
UNIX, Linux, and Command Line Basics
hschwentner
0
170
From Legacy to Cloud
hschwentner
0
230
Other Decks in Programming
See All in Programming
CSC307 Lecture 07
javiergs
PRO
1
560
なるべく楽してバックエンドに型をつけたい!(楽とは言ってない)
hibiki_cube
0
140
なぜSQLはAIぽく見えるのか/why does SQL look AI like
florets1
0
480
コントリビューターによるDenoのすゝめ / Deno Recommendations by a Contributor
petamoriken
0
210
OSSとなったswift-buildで Xcodeのビルドを差し替えられるため 自分でXcodeを直せる時代になっている ダイアモンド問題編
yimajo
3
620
CSC307 Lecture 04
javiergs
PRO
0
660
副作用をどこに置くか問題:オブジェクト指向で整理する設計判断ツリー
koxya
1
610
AWS re:Invent 2025参加 直前 Seattle-Tacoma Airport(SEA)におけるハードウェア紛失インシデントLT
tetutetu214
2
120
AIエージェント、”どう作るか”で差は出るか? / AI Agents: Does the "How" Make a Difference?
rkaga
4
2k
Data-Centric Kaggle
isax1015
2
780
Basic Architectures
denyspoltorak
0
680
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
610
Featured
See All Featured
A better future with KSS
kneath
240
18k
How Software Deployment tools have changed in the past 20 years
geshan
0
32k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
47
7.9k
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
konakalab
0
350
Done Done
chrislema
186
16k
Context Engineering - Making Every Token Count
addyosmani
9
660
A Soul's Torment
seathinner
5
2.3k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Dominate Local Search Results - an insider guide to GBP, reviews, and Local SEO
greggifford
PRO
0
78
Why Our Code Smells
bkeepers
PRO
340
58k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.4k
It's Worth the Effort
3n
188
29k
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]