A Scala Tutorial for Java Programmers – Scala Documentation – This document gives a quick introduction to the Scala language and compiler. It is intended for people who already have some programming experience and want an overview of what they can do with Scala. A basic knowledge of object-oriented programming, especially in Java, is assumed.
Non-blocking IO in Servlet 3.1 By Example | Java.net – Servlet 3.1 (JSR 340) is almost ready for the release. One of the new features is the support for non-blocking IO. ReadListener and WriteListener are introduced to allow non-blocking processing in Servlet.
Red Hat pushes open source cloud with OpenStack distro | ZDNet – Linux software giant Red Hat has launched a community-led distribution of the OpenStack open source cloud platform. RDO — announced at the OpenStack Summit in Portland, USA, on Monday — is a free community-supported distro of OpenStack that will run on Red Hat Enterprise Linux (RHEL), Fedora and their derivatives.
A Little Graph Theory for the Busy Developer – Jim Webber explores graph data analytic techniques using social graph properties inspired by anthropology and sociology, extracting online business intelligence from graph matching.
Android SQLite Database – Android platform includes the SQLite embedded database and provides out of the box support to use it via Android APIs. In this tutorial we shall see how to get started with SQLite database in Android. SQLite is nothing but a relational database and our sql
The Saddest Map In America « I think it’s funny 🙂 – Yep, there it is: the result of a scholarly study by Dorothy Gambrell of the “missed connections” section of Craigslist. This is where you thought you saw your future spouse or date or hook-up, state by state.
ProGuard – A free Java class file shrinker, optimizer, obfuscator, and preverifier – ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier. It detects and removes unused classes, fields, methods, and attributes. It optimizes bytecode and removes unused instructions. It renames the remaining classes, fields, and methods using short meaningless names. Finally, it preverifies the processed code for Java 6 or for Java Micro Edition.
GWT 2.5 SuperDevMode and Google App Engine – Now an Amazing Combination – With the advent of GWT's new SuperDevMode (SDM), you can easily modify your Java client code and see it quickly reflected in GAE's development environment without any restart necessary. This is an addition to the other native Java debugging features introduced as a result of SDM. Below is a quick screencast of this capability:
MongoDB SQL Server Importer – If you want a quick (but kinda dirty) way to import your SQL Server database to MongoDB, this is your tool. MongoDB SQL Server Importer (Sql2Mongo) is for those who wants to leverage their existing database to learn MongoDB.
Extreme Performance with Java – Charlie Hunt explains what can be done to lower the latency introduced by the Java GC and JIT, including coding tips, and introducing tools for tuning the performance of Java applications.
Protean Echo | Fuse all your cards into one – Echo is the last payment card you'll ever carry. It's your debit, credit, loyalty, and prepaid cards – even your student ID – all combined into a single, elegantly crafted card.
Legit – Git Workflow for Humans – Legit is a complementary command-line interface for Git, optimized for workflow simplicity. It is heavily inspired by GitHub for Mac.
Automating Unit Tests | Blog | Sencha – Unit tests are an important part of the software development process. By clearly defining what we expect from our code, unit tests allow us to develop a high degree of confidence that our applications will function as intended. Automating our unit tests reduces the number of bugs and decreases the amount of time we need to spend manually testing our code.
Goodbye MongoDB – Over the last two or three years we have been using MongoDB in some mid-size projects. Now it is time to say goodbye to MongoDB for a variety of technical reasons:
VMware’s Vision For Next-Generation Applications – The moves are aimed at Java developers, particularly those who already use VMware's Spring Framework for lightweight Java development. Enterprise Java applications frequently end up in the virtualized part of the data center. By making it easier to produce them, VMware is also making it more likely they'll be deployed on its virtual machines
The Big Three – Scala, Clojure and Groovy | The Code General – The most encouraging outcome of the last few years has been the flourishing ecosystem around new JVM languages. A decade ago the CLR was being proclaimed as *the* runtime to support multiples languages. Thanks to the community the JVM is looking more and more like the preferred target for new languages, innovation and research.
MongoDB Overview | Channel 9 – Jared Rosoff covers the basics of Mongo and then explains the purpose and architecture of MongoDB replica sets (for scalable read operations) as well as MongoDB's approach to sharding (for scalable write operations).
This Is What Developing For Android Looks Like | TechCrunch – Animoca, a Hong Kong mobile app developer that has seen more than 70 million downloads, says it does quality assurance testing with about 400 Android devices. Again, that’s testing with four hundred different phones and tablets for every app they ship!
Java Concurrent Animated – This presentation consists of a series of animations that visualize the functionality of the components in the java.util.concurrent library. Each animation features buttons that correspond to the method calls in that component. Each click of a button shows how the threads interact in real time. The animations are controlled by the actual Java concurrent component they are illustrating, so the animation is not only a visual demonstration, it’s also a code sample.
A human review of the Kindle Fire – Marco.org – The Fire is an Android version, sort of, of the iPod Touch. It’s the first device available that’s inexpensive and offers Android in a somewhat reasonable package without a cellular contract.
JavaOne: Comparing Java Web Frameworks – Finally, he finished with an interesting thought – that one of the main scalability issues with any web framework is people i.e. the competencies and preferences of the developers on the team.
Comparing Mongo DB and Couch DB – MongoDB – We are getting a lot of questions "how are mongo db and couch different?" It's a good question: both are document-oriented databases with schemaless JSON-style object data storage. Both products have their place — we are big believers that databases are specializing and "one size fits all" no longer applies.
Why Dart is not the language of the future – Dart fails to provides the advantages of static languages, without compensating by the flexibility of dynamic languages. Nothing has been learned from the dynamic language renaissance of the last ten years; nothing from the functional world; nothing even from the slick concurrency model of Go and its goroutines, also from Google.
So I think it's a step backwards in language design. With Node.js and Coffeescript around, and the programming paradigms they allow, Dart looks already obsolete and inadapted.
Responsive Data Tables | CSS-Tricks – Responsive design is all about adjusting designs to accomodate screens of different sizes. So what happens when a screen is narrower than the minimum width of a data table?
Gwt EventBus (HandlerManager) the easy way – With the event bus you are able to decouple the components and remove all the logic to deliver events. In fact you have a common bus where you can put events and forget about them
Spring Roo 1.1.3 Released | SpringSource.org – We're happy to announce integration the availability of Spring Roo 1.1.3. Spring Roo is a rapid application development tool for Java, allowing you to create full enterprise applications in just minutes
2011 Product Roadmap Update for Sencha products including Sencha Touch & Ext GWT – Sencha Touch 2.0 will be an evolutionary step in our Touch product, and we’re looking to bring greater consistency in the core platform between Ext JS and Touch. In the spring, we’ll also release a touch compatible version of our charting package so developers can make beautiful, mobile-friendly, plugin-free charts.
Rdd.me Is a Readability-Powered URL Shortener – While all URL shorteners intend to simplify the process of sharing links, Rdd.me, a new URL shortener from the creators of distraction-free tool Readability, is special in that it simplifies the process of sharing content.
Cloud Developers’ Bill of Rights – Our mission is to enable you to build and run great cloud applications that delight users. Many developers take certain principles for granted, like choice, openness and portability. We will honor these by providing a robust platform with excellent support, without the risk of lock-in.
InfoQ: Nick Kallen Discusses Scala at Twitter – Nick discusses using Scala to build high-performance and scalable network services (including FlockDB), the powerful dualism of Scala which combines the best of object-oriented and functional approaches and also provides his views on the tradeoffs between static and dynamic languages
InfoQ: Scaling with MongoDB – Roger Bodamer provides advice on scaling out MongoDB using replica sets and auto-sharding, plus tips for database deployment and scaling use cases.
InfoQ: IT And Architecture: Inside-Out Perspectives – The enterprise that understands the need for a coherent strategy within IT to meet the needs of the business, will invest in a business architecture consisting of a business activity model and a business information model
InfoQ: JasperSoft 4 Released with Big Data Support – JasperSoft this week announced support for reporting against big data systems, including support for a variety of modes for reporting on Hadoop, several popular NoSQL databases, as well as three MPP analytic relational databases
InfoQ: How Facebook Ships Code – most engineers are capable of writing bug-free code. it’s just that they don’t have an incentive to do so at most companies. when there’s a QA department, it’s easy to just throw it over to them to find the errors.
InfoQ: Proving the Business Value of SOA – Anne Thomas Manes discusses SOA goals and objectives used to measure a system’s success, measuring the business value, SOA project metrics, and recommendations on proving the business value of SOA.
InfoQ: Developing Social-Ready Web Applications – Craig Walls discusses social web applications, how to integrate them, how to provide social data in a RESTful and secure way, introducing Spring Social, a framework for developing social web apps.
InfoQ: SOA Security in Practice – Nicolai M. Josuttis discusses various issues encountered when implementing SOA security: heterogeneity and debugging are problematic, ESB plays an important role, and costs involved.