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Sven Woltmann
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hexagonal architecture spring boot
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Hexagonal Architecture with Spring Boot
[Tutorial]

Sven WoltmannSven WoltmannDecember 27, 2023
Hexagonal Architecture Tutorial, Part 5: We migrate the application from Quarkus to Spring Boot – without changing a line in the application core.
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java 22 features
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Java 22 Features
(with Examples)

Sven WoltmannSven WoltmannDecember 7, 2023
All the new Java 22 features with examples: Unnamed Variables & Patterns, Stream Gatherers, Foreign Function & Memory API, Launch Multi-File Source-Code Programs ... and more!
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java foreign function and memory api - ffm api
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Java Foreign Function & Memory API
(FFM API)
– Tutorial

Sven WoltmannSven WoltmannDecember 7, 2023
Learn how to access libraries of other programming languages from Java using the Foreign Function & Memory API.
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stream gatherers
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Java Stream Gatherers – Write Your Own Stream Operations!

Sven WoltmannSven WoltmannDecember 6, 2023
Find out what a stream gatherer is and how you can use it to implement any intermediate stream operations.
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statements before super(...)
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Flexible Constructor Bodies in Java 25: Executing Code Before super()

Sven WoltmannSven WoltmannDecember 5, 2023
As of Java 22, you can finally execute code in constructors before calling super(...) or this(...). This article shows you how.
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string templates java
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String Templates in Java

Sven WoltmannSven WoltmannDecember 5, 2023
Learn how String Templates in Java simplify the composition of strings from text, variables and calculated values.
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unnamed variables and patterns
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Unnamed Variables and Patterns in Java

Sven WoltmannSven WoltmannDecember 4, 2023
Variables & patterns that we have to define but do not need can be designated with '_'. Find out what you need to bear in mind.
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Hexagonal Architecture with Quarkus
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Hexagonal Architecture With Quarkus
[Tutorial]

Sven WoltmannSven WoltmannOctober 30, 2023
Hexagonal Architecture Tutorial, Part 4: We migrate the demo application to Quarkus with CDI and Panache – without changing the application core.
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ports and adapters feature image
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Ports and Adapters Java Tutorial: Adding a JPA Database Adapter

Sven WoltmannSven WoltmannOctober 4, 2023
In part three of our hexagonal architecture series, we add a JPA adapter for MySQL to the application – without changing a single line in the core.
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hexagonal architecture java
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Hexagonal Architecture in Java – A Hands-On Implementation Tutorial

Sven WoltmannSven WoltmannJuly 4, 2023
Step-by-step tutorial: how to implement a working application based on hexagonal architecture – with Java, Maven, and ArchUnit.
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