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Update: This post may still be correct but since ES6 the keyword “class” has been introduced to JavaScript, so make sure to check this out first: ES6 classes The following is a personal best practice advice for OO with ES5 (and older) Coming from a Java background, I really miss keywords like class or extends […]
I’ll be speaking on the upcoming ZK user group conference in Mannheim, Germany on December 6th, 2011 (what’s ZK?). If you enjoy developing rich internet applications with the power of Java, I highly recommend to be there. If you want to join, just sign up for the event on zkoss.org for free and see three […]
If you suddenly experience problems callling set.remove() and set.contains() on your Java Set instances, you might be using Hibernate, which replaces your Set instance with its own version (PersistentSet), which uses a HashSet internally to store your data. For example, the problem I faced was the following: Person.java public class Person(){ String _name; public Person(String […]
Ok, this just took me a while to figure out so I thought I’d share it here. If you have a boolean variable that follows the naming convention “isValue” (e.g. boolean isPerson = false;), then the according mapping file property name may not include the “is” part of the name, for example: <property name=”person” column=”is_person” […]
I created a new online platform called zkexamples.com. The goal is to provide really simple and quick examples for common ZK use-cases and requirements (what is ZK?). The idea is based on flexexamples.com which was a great help to me when I was coding a lot of Adobe Flex. If anyone has some nice examples […]
If you’re using the awesome ZK framework together with Hibernate you might run into some issues where Hibernate behaves a little funky while the application runs. The trouble’s cause According to the developers of ZK, the reason for this is ZK’s multi-threaded event model. Whenever an event gets fired, a new event thread is created. […]
I lately had to play around a lot with collections in multi-threaded environments and learned several new stuff that I’d like to share: Vector vs. ArrayList Where is the difference between both? When should you use ArrayList and when is the time to use Vector? This is a very common question and often leads to […]
Update: After hearing about some misunderstandings regarding this post, I want to make sure, that the title “Flash – The new Java?” is of course targeted at front-ent software engineering, not backend. Although it’s obvious that noone would ever try to build a web application backend using Flash, I just wanted to make sure that […]
Stop! Before you send me a letter-bomb, read this article first :-) Update: After hearing about some misunderstandings regarding this post, I want to make sure, that the title “Flash is better than Java” is of course targeted at front-ent software engineering, not backend. Although it’s obvious that noone would ever try to build a […]
In case you have ever been asking yourself how to call yourself if you develop Flash-based applications, here is the ultimate guide: If you use the Eclipse-based IDE called “Flash Builder” in order to create Rich Internet Applications using AS3 and MXML, you are a Flash Developer (with Focus on Flex). If you use the […]