Redcode » Java Programming

Handling null in Java

royvanrijn — Mon, 01 Feb 2010 10:46:13 +0000

Its a problem I encouter in most JEE projects I’ve worked on so far. Handling null-values. But why is this a problem? And what strategies can we follow to reduce the problem? That is what I’m trying to find out in this post.

Lets start with a piece of business logic, in a world [...]

Cleaner code: Inversion of logic

royvanrijn — Fri, 11 Dec 2009 09:14:10 +0000

Design patterns

Almost all programmers have heard about and used design patterns. And there are a lot of them. Famous design patterns include the Singleton, Observer, Template method. These are all patterns that focus on objects and the relationship between them.

There are more groups of patterns, for example take Dependency Injection (or [...]

Java EE 6 released, including Servlet 3.0

royvanrijn — Thu, 10 Dec 2009 21:43:13 +0000

Today marks the release of Java EE 6. The reference implementation (Glassfish V3) has been released and the specifications are going into their final state very soon.

About two years ago, while I was attending the JavaOne conference, I first heard about the Servlet 3.0 ideas. As a web developer I’ve worked a lot with [...]

Java Generics for Compare

royvanrijn — Fri, 04 Dec 2009 15:35:15 +0000

I’ve been developing with Java 5+ for quite a while now. Not all developers are this lucky, some are still stuck with 1.4… some even with 1.3! But my clients all made the excellent step forward to Java 5 (some even to 6). The problem is, they moved the runtime/JDK but forget to move their [...]