Java Lobby Announcements

Edward Kim, an independent Android developer, says he is now making $13,000 a month selling his "car locator" Android application on the Android Marketplace.  Even though it's no where near the highest profits coming out of the Apple App Store, it's still a healthy sign for growth in the Android Marketplace and the legitimacy of Android development.  Kim offers some

In part 1 and part 2 of this series I was able to demonstrate how you can create a custom archetype and release it to a Maven repository. In this final part we’ll look at what you need to do to integrate it into your development process. This will involve the following steps: James Sugrue

Yesterday I learned that there is an O(n) integer sort algorithm (I should have read this before in a basic algorithm book :-/). Now I wondered: is this necessary in real applications? E.g. somewhere in Java? Today I have taken the counting sort and I can argue: yes, you should use integer sort especially for large arrays! And when in detail should you apply the fast integer sort? Apply it if ...

The websocket protocol has been touted as a great leap forward for bidirectional web applications like chat, promising a new era of simple comet applications. Unfortunately there is no such thing as a silver bullet and this blog will walk through a simple chat room to see where websocket does and does not help with comet applications. In a websocket world, there is even more need for frameworks...

Dependency Injection is one of the techniques that I use regularly when I am programming in Java. It's a nice way of making an application decoupled from concrete implementations and localize object creation logic within specific bootstrapping modules. Be it in the form of Spring XML or Guice Modules, the idea is to keep it configurable so that specific components of your application can choose...

The Android development kit provides great emulators to allow you to test your applications as it would be emulated on a device. There's a catch, not all features are available in the emulator as they are in the actual device. This becomes clearly apparent when you start to develop applications for possible the camera, or even accelerator, compass, or orientation sensors. You can't just pick up...

Chrome Usage Keeps Growing, IE Keeps Dwindling  

A lot of organizations transitioning to agile are focused on getting planning and communication practices in place, but they tend to neglect engineering practices until later.  ThoughtWorks Studios tries to correct this anti-pattern with its ALM tools, which are designed to handle changing requirements in the development process and adapt to the way agile teams work.  Another longstanding...

This article provides a high level view of the motivations behind the Savara open source project, and the Testable Architecture methodology upon which it is based. To best explain these motivations, we will discuss the project in terms of four properties that are desirable in the development of any Enterprise Architecture.

Having focussed on the two factory patterns over the last week, today we'll take a look at the Strategy Pattern, a useful pattern in changing algorithm implementations at runtime, without causing tight coupling. James Sugrue

There are currently two exciting platforms for which one can develop: James Sugrue

Jigsaw will come with JDK 1.7 and is now part of the openjdk project and so opensource. Other JDK implementations could simply reuse it.It will become interesting, because: James Sugrue

What does the Next Generation REST client look like? Bill Burke had a few ideas... guess who's implementing them? Yours truly. James Sugrue

For many Java teams, switching to Maven will introduce them to formal dependency management. Maven actually does a pretty decent job and is a fantastic system out of the box for informal projects. However, for teams looking to implement rigorous component reuse policies, Maven falls short. Last month, in our article Chaperoning Promiscuous Software Reuse, we reviewed four elements of a...

In addition to supporting the OSGi 4.2 remote services specification, we on the ECF team have also been working on support for accessing REST-style services, as well as those that use the Simple Object Access Protocol (SOAP). James Sugrue

In this article we’ll review how dynamic classloaders are used in real servers, containers and frameworks to reload Java classes and applications.  We’ll also touch on how to get faster reloads and redeploys by using them in optimal ways. James Sugrue

YouTube and Vimeo Foster HTML5 Escalation

SIP Servlets provide a server side Java abstraction to SIP protocol and it is based on familiar servlet model. This enables an application developer to use Java servlet programming to write Converged applications. What exactly is the meaning of "converged applications"? SIP Servlet Specification explains this as follows James Sugrue ...

Flex is now approaching its 4th version. Even since its start, it looked promising. Until some time ago, I didn’t look much into it for it was not Open enough. Two years ago, in order to use Flex application freely, you had to limit yourself to a little subset of Flex. James Sugrue

A couple of posts earlier I had blogged about a real life case study of one of our projects where we are using a SQL store (Oracle) and a NoSQL store (MongoDB) in combination over a message based backbone. MongoDB was used to cater to a very specific subset of the application functionality, where we felt it made a better fit than a traditional RDBMS. James...