Maven is the EJB2 of build tools

KnowledgePlaza has a rapid development platform called Cheyenne. Cheyenne is based on Java and produces in the end a WAR file, that can be run inside any servlet 2.5 / jsp 2.1 compatible container (like Tomcat 6). Cheyenne projects are build using Maven.

One of the features in the build is that there is the option of overlays; a Cheyenne project can be overlaid with other Cheyenne projects, who provide generic Java classes, JSP files, resources, etc. This feature is very similar to the overlay feature in the default WAR plugin, but Cheyenne has a few tweaks and differences that have forced us to write our own Maven plugin.

Initially the concept of Maven is very straight forward; there is a default build cycle consisting of about 20 steps (phases), and certain actions are bound to the phases based on the packaging type. For example: building JARs require different actions than building WARs. Simple? Simple. So in order to implement our tweaked build for Cheyenne all that needs to be done is write some custom actions and bind them to the build cycle. But there is this huge gap between theory and actually getting it to work. Continue reading “Maven is the EJB2 of build tools”


In the continuing story of iPad development one of the issues that became obvious was that the UIDatePicker looked really lousy in the overall design of the hour entry application. The UIPickerView component that is used by UIDatePicker has a fixed skin that is hard to fit into another layout. This was mostly caused by the appearence it generates that it is a scroll wheel inside some kind of casing, but the casing has no outside border. So It really did not fit-in well.

Secondly the UIDatePicker takes up quite a bit of space on the screen but you cannot quickly pick another date in the same month; you have to scroll to it, possibly 30 days. I like the “normal” date pickers better. So I found the required excuse to write one.

Continue reading “KPMiniPickerView”

JavaFX 2.0 EA and MigLayout

Oracle rebooted JavaFX and finally positioned it as what I for a long time have been longing for; Swing 2.0. Let’s not kid ourselves; JavaFX is a new UI library for Java, using the API lessons learned from Swing and taking it to the next level with animations and effects. The concept is powerful enough to even go into the 3rd dimension soon. And more importantly; JavaFX2 finally has a good integration (and therefor migration path) with Swing, so it actually has an existing user base which can easily be persuaded to take a peek. Not to mention the fact that it now uses Java instead of JavaFX script, so the EDI support is great right from the start. (Well done Oracle!) But if this doesn’t sound like Swing 2.0, I don’t know what will.

So what is JavaFX2 like? Well… I like it. The API is clean and intuitive. Since it uses a different approach, making everything from simple lines to complete tables just a node in a tree, it means that I still have to really get my head around that. Fact remains that this approach allows to easily add effects and animation on anything, being it on a square or complete screen (they’re all just nodes after all). But I know I will initially use JavaFX in existing Swing applications, so my primary interest is in the controls. In order to make my life easier, I decided that porting MigLayout could be a good idea.

I must say that the initial results in my opinion are not bad at all. Below is an example of a simple test involving a TextBox and Rectangle:

public class MigPaneTest1 extends Application {

    public static void main(String[] args) {
        Launcher.launch(MigPane.class, args);

	public void start(Stage stage) {

        // root
        MigPane lRoot = new MigPane(new LC(), new AC(), new AC());

        // add nodes
        lRoot.add(new TextBox(10), new CC());
        lRoot.add(new Rectangle(30,30, Color.YELLOW), new CC());

        // create scene
        Scene scene = new Scene(lRoot, 600, 300);

        // create stage

This results in the following layout:

Continue reading “JavaFX 2.0 EA and MigLayout”