For this weeks JSF tip, I’ll show you how to send binary data (such as a file) to the user by way of an action handler or listener. Say, you want to generate a custom PDF and send it to the user as he clicks a link. You need a JSF page, and a backing [...]

Posted in Java 2 Comments »

It has been a busy year so far. Every year I start out thinking that I really need to relax because the previous year was too hectic, but every year it ends up being much more hectic. Anyway, I thought I’d post a JSF quick time that might shave some headache for people developing internationalised [...]

Posted in Java 8 Comments »

A thing that always annoys me about installing Java is that it doesn’t automatically set up the JAVA_HOME environment variable after installation. I guess this is to avoid having problems when you have multiple virtual machines installed. Anyway, I use Ubuntu Linux to host the majority of my Java Application Server. It is easy install [...]

Posted in Java, System administration 3 Comments »

If you have a custom converter or validator you may provide these with the option of letting developers specify attributes. For example, let’s say that we are creating a converter that will allow the formatting of a Calendar object. Note, that the <f:convertDateTime /> is for Date objects (which can be easily retrieved from a [...]

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When you got large source files it can sometimes be helpful to create foldings for certain sections of your code. NetBeans got a nifty functionality for this using non-intrusive XML code (similar to Visual Studio). To create a custom code folding section simply insert the following before the content to fold: //<editor-fold defaultstate="collapsed" desc="My custom [...]

Posted in Java 6 Comments »

To start the day off I though I’d share a quick tip using JSF. Say you have a list of messages: quicktip.Messages: ITEM_1=First item ITEM_2=Second item ITEM_3=Third item Now, on your JSF page you would like to show one of these messages depending on the ID of the item to display. For example, you might [...]

Posted in Java No Comments »