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APIs for the Internet of Things

Max Katz

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Top Stories by Max Katz

Web Apps vs. Native Apps is a topic that still excites readers to this day, as if it were anticipated that one side will win and the other will lose. Contrary to popular belief, the discussion doesn't need to produce a winner and a loser. Instead of classifying apps as web apps or as native apps, why not just call them mobile apps? I believe "mobile app" is a great name. Under this name there are simply two variations of mobile app that can be created: web app and native app. A web app is an HTML5, JavaScript, CSS app running in a mobile browser. Now, you might wonder, why not just call this a mobile site? This is a fair point, and I believe the term "mobile site" can also be used. However, it is common to distinguish a mobile web app by one important extra feature, that it is invoking some remote services, usually a REST API (instead of just loading a static mobile ... (more)

Happy Birthday, Ajax4jsf!

Ajax4jsf has turned one and what a year it has been. It was an amazing ride for all of us here at Exadel. The popularity of Ajax4jsf is evidenced by the size of the community, available resources, examples, blog entries, and articles. Also, a significant number of organizations today use Ajax4jsf in production. Ajax4jsf is an open source extension to JavaServer Faces (JSF) that adds AJAX capability to JSF applications without requiring the writing of any JavaScript. So, after wishing Ajax4jsf and those who have worked on it a heartfelt "Happy Birthday," let's take the time to ref... (more)

JSF Mojarra Extension Tags Validation and Focus

Here is something you may or may not know. JSF Mojarra comes with a small extension tag library with three tags: regular expression validator, credit card validator, and focus setting tag. They are available since JSF version 1.2_09, but maybe even earlier (I didn’t check). Page setup Before using any of the tags, add this xml namespace to your Facelet page: xmlns:mj="http://mojarra.dev.java.net/mojarra_ext" Regular expression validator mj:regexpValidator is probably all you need to validate any kind of input by setting the right expression. For example, to validate an email address:... (more)

New JavaFX Community Site Launched

Stephen Chin has launched a new web site to help grow JavaFX community. Check it out here. Stephen is also the author of JavaFX Dzone Refcard. ... (more)

RichFaces Region

The a4j:region tag in RichFaces is probably one of the most misunderstood tags, but it provides one of the most important features in RichFaces. With it, server-side processing can be limited to only certain designated components. One reason for misunderstanding could be the tag name. Many believe that the region tag limits what is rendered in the JSF component tree (to the browser). However, it’s used for the opposite purpose, to mark areas on the JSF component tree to be processed on the server during the Apply Request Values, Process Validations, and Update Model Values phase... (more)