As I described in my original blog post, you can easily create and manage read replicas using Amazon RDS for MySQL. From the AWS Management Console, you simply right-click on the database instance of interest and choose the Create Read...

Roger Attrill discusses various UX features to be considered when transitioning from desktop to mobile, including user types, constraints, opportunities, content organization, layout and navigation. By Roger Attrill

In only her second year of speaking at JavaOne, Trisha Gee has become a fan favorite. If you missed her session at the San Francisco Hilton, you still have a chance to read her debrief about the issues surrounding women in the IT industry, discussing both the challenges they face, along with the benefits they experience by being in the industry.

"One fundamental aspect of OO expressiveness is class definitions in terms of inheritance. Some designers aim for inclusiveness and deep structure; they produce class hierarchies where everything is richly structured in terms of inheritance from carefully constructed base objects. I see a profound mistake in this." -Cameron Laird

With a new JAX-RS distribution of TomEE, Tomcat developers have more options to choose from for fully JavaEE 6 Web Profile certified Tomcat stacks. The release also includes a large number of improvements over the 1.0 released in May.

The jQuery UI and jQuery Mobile teams have announced new stable version of their JavaScript libraries including new features, API redesign, improvements and fixes. By Abel Avram

Git is great, but sometimes its reductionist approach to tracking changes to code can be limiting. To solve this problem, Datomic have created codeq (pronounced “co-deck”), an application for importing Git repositories into a Datomic database for further analysis. We’ve been monitoring the progress of Datomic, the latest project from Clojure creator Rich Hickey, for the past year or so. Billed as a new distributed database system “based on facts”, the radical aspect of Datomic is the splitting of transactions, processing and storage into three distinct parts, as opposed to RDBMS’s unified approach. In some ways, codeq is a tech demo for Datomic - but a pretty impressive one. Once imported, Git repositories are analysed and divided up into semantic segments named ‘codeqs’, which then allow changes to be tracked at the program unit level, rather than line/code level. The resulting database allows for programs and libraries to be queried declaratively, and by importing multiple git repositories can allow queries across repos. Hickey says that the database could even “serve as infrastructure for editors, IDEs, code browsing, analysis and documentation tools”, although obviously this is some time off. Codeq is open source (you can get it yourself on GitHub), but to run it you’ll need to download the free edition of Datomic. For more information about Datomic, check out the video below of Rich Hickey’s great JAXconf session, ‘Deconstructing the Database’. no iframes?

ZeroTurnaround's COO and President, Alex Laats, tells stories from his 20 years of experience as a high-tech entrepreneur, business operator and team builder about how simply having great technology and seeing market potential on the horizon can quickly become dangerous pitfalls if too many assumptions are made.

OpenOffice, the Java-based open source rival to Microsoft Office, may become a top-level Apache project as it heads towards ‘graduation’. Apache OpenOffice, previously known as OpenOffice.org, has been through a rough couple of years, facing competition from breakout fork LibreOffice and still in its incubation phase at the Apache Software Foundation. While many have been critical of the lack of progress as the project has changed hands, this (possible) prioritising of the project by Apache is indicative that there may be life in the old dog yet. Having been incubating as an Apache ‘podling’ for the past sixteen months, the project was voted to graduation stage in August. Now, Andrea Pescetti, Project Management Committee chair (as of Monday), has proposed to start a vote on the incubator mailing list on whether it should be a top-level project. In some ways, this was inevitable. OpenOffice is almost a household name, with a userbase and community larger than most open source projects. Before its transfer to Apache, it even had its own conference. Once OpenOffice leaves the incubation stage, development proper will be able to resume. Whether it can catch up with LibreOffice’s advancements, or make a dent in Microsoft Office’s market share, remains to be seen.

CloudVM from Waratek is a "Java Standard Edition 6 compatible JVM", with some interesting characteristics: CloudVM comes with only 1 MB overhead and is designed to run multiple isolated instances at the same time All JVMs are shared within Waratek Cloud VM Host Deploy/undeploy commands are a part of the Cloud VM host Cloud VM is intended to host EARs/WARs and comes with Tomcat 7 as example Each JVM runs in fully virtualized environment, so you can dedicate resources and monitor the instances separately Fast startup Why is it interesting? Instead of attempting to isolate modules within a single JVM, it is simpler and cleaner to keep a 1:1:1 relation between the JVM, application server and the application. Actually it would be even nicer, if waratek would just run on a hypervisor. Although waratek is a commercial, closed source, project without any "free" options--it is still interesting :-). See also a walkthrough video Disclaimer: I briefly tested waratek in VirtualBox and have no idea how this product behaves in production :-) Real World Java EE Bootstrap and Effective Java EE Bootstrap Workshops [Airport Munich]

How to allow instance methods to run as JUnit BeforeClass behavior JUnit allows you to setup methods on the class level once before and after all tests methods invocation. However, by design on purpose that they restrict this to only static methods using @BeforeClass and @AfterClass annotations. For example this simple demo shows the typical Junit setup: Preview Text: ...

I recently got a comment on my blog: Accessing Request Parameters using Spring 3 MVC, pointing out something that I didn't know about Spring's @RequestParam annotation. The comment, from salient1, went like this: Preview Text: I recently got a comment on my blog: Accessing Request Parameters using Spring 3 MVC, pointing out something that I...

Securing RESTful web services is a challenge in many regards. One approach? OAuth2, a protocol enabling a Client application, often a web application, to act on behalf of a User, but with the User's permission.

OSGi reduces complexity by providing a modular architecture for today's large-scale distributed systems as well as small, embedded applications. Building systems from in-house and off-the-shelf modules significantly reduces complexity and thus development and maintenance expenses. The OSGi programming model realizes the promise of component-based systems. In this article we enter into the world of the OSGi architecture and discover how it can be used to improve application design.