One key to a stable application is a well-structured codebase. We know that we should build as many black boxes as possible, because as soon as one black box is finished, we no longer have to think about its interior. You just use the code you or another team member has written through a well-defined interface. This gives you the possibility ...

HTML5 introduces a great new element that can be used to draw arbitrary content on a pane: the canvas element. What has been a standard feature for fat client applications for decades is now introduced to the world of web applications. Web developers no longer need to use proprietary plugins to draw images or charts in their applications. But when ...

Some time ago, I have written my own custom JSF component. But at that point in time, JSF 1.0 was still up to date and the project didn’t use maven as build system. Thus, I always wanted to write a custom JSF2 component with maven. So let’s start: First of all we setup a maven project with two modules. Here ...

You may come to the situation where you have to perform a bulk deletion on a huge amount of datasets stored in a relational database. If you use JPA with Hibernate as underlying OR mapper, you might try to call the remove() method of the EntityManager in a way like the following:               public ...

In many cases there is no way to deploy an application without the need to setup your application before. In JBoss AS 7.x you may want to configure for example your database connection. Or you have to configure a security realm. Maybe you also want to adjust the SLSB pool… In any of these cases all developers in the team ...