GeeCON 2014 – Brain dump, Day 3

The last, third post with my notes from the GeeCON 2014 conference. Pretty short? I am not going to justify myself, but it was the third day and everyone was a bit tired after two intensive days and nights in Cracow.

Tomasz Kowalczewski – Reactive Java

• Something almost “reactive” is already in JDK8: Completable Future, more reading: “Java 8: Definitive guide to CompletableFuture”
• RxJava has a nice DSL allowing to configure observables in an elegant way
• Project has a good wiki, worth diving deeper
• Observables can be easily converted to Iterator (good for step-by-step migrations)

Tom Bujok – 33 things you want to do better

• (didn’t attend this one) but there are very good slides available

Sander Mak, Paul Bakker – Modular JavaScript

• CommonJS (preferred one) and AMD
• Chuck Norris Stamp Of Approval – image 😉

Sandro Mancuso – Crafted Design

• Controller only controls the flow, usually only invokes use_cases
• use_cases, package for logic/features
• Packages by feature
• There were too many diagrams hard to describe in text so you should really check slides

Michael Feathers – Beyond Error Handling

• Book “Growing Object-Oriented Software, Guided by Tests”
• We shouldn’t pass nulls inside the application
• “Do not check for stupid everywhere, check for stupid at the door”