Change-proof your code thanks to the Hexagonal Architecture!

Discover in practice the Hexagonal Architecture, a must-have for any complex application!

You want to decouple your code from the technology fads? You'd like to be able to switch frameworks and libraries without rewriting all your business logic? You want your code to be easy to test? You're interested in practicing Domain-Driven Design? You definitely need to rely on the Hexagonal Architecture! This architectural style makes it easy to accommodate big changes with no harm.

With concrete code samples, we'll show how to implement this style without pain, as soon as you're back in the office.

Monoids demystified, in Java and with glasses of beer!

Monoids are powerful, elegant, and essential. They're also easy to understand and to apply in Java, even in Java 1.4. Even if you don't want to hear about monads, monoids are so simpler you won't resist.

Explained with glasses of beer and many examples of code, discover a style of code that developers all over the world have learnt to enjoy; this may change forever the way you look at your code, and the way you look at glasses of beer too!