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Community

From 0 to First Hit with Grails Support by Glen Smith and Peter Ledbrook, authors of Grails in Action, Second Edition Grails is a next-generation Java web development framework that generates great developer productivity gains through the confluence of a dynamic language, a Convention over Configuration philosophy, powerfully pragmatic supporting tools, and an agile perspective drawn from the...
on Oct 25, 2012
Searching at Scale by Trey Grainger and Timothy Potter, authors of Solr in Action One of the most appealing aspects of Solr, beyond its speed, relevancy, and powerful text searching features, is how well it scales. In this article, based on chapter 3 of Solr in Action, the authors explain how Solr is able to scale to handle billions of documents while still maintaining lightning-fast search...
on Oct 12, 2012
As we began our Java adventure at Amway Corp 10 years ago, one of the most important tasks we had to do was to create our Object Model. We had a variety of Java objects that we were planning to use in our application. How were they going to be "wired" together inside of the application? After 4 weeks of Object-Oriented, J2SE, J2EE training; we set out to define our Object Model. This model was...
on Jul 16, 2012
When we starting planning how we were going to use Java technology at Amway (10 years ago); we realized we had many decisions to make about standards to adopt, practices to learn, architectures to use, patterns to follow, etc. Fortunately for us, there were many sources of information to help us figure all of this out. Unfortunately for us, there were many sources of information to help us figure...
on May 21, 2012
In JUG-AFRICA we started an Open Source project to manage the BIG ANNUAL EVENTS for our JUGs. The first release will be available in the early second half of January. The application will provide all services bellow via the REST Web services :     - Appointment Manager - Conference Manager - Paper reviews and approval Manager - Profile Manager - Registration Manager - Sponsorship...
on Jan 2, 2011

Distributed

Do You Want to Get This Message? by Mark Fisher, Jonas Partner, Marius Bogoevici, and Iwein Fuld, authors of Spring Integration in Action Spring Integration allows you to selectively process messages and define alternative routes within the system. In this article, based on chapter 6 of Spring Integration in Action, you'll see how you can limit the scope of what your components will handle by...
on Oct 19, 2012

Databases

        Launched the latest Easy-cassandra version, that come with improvements to manage multi-nodes. Use many node is very usefully in Cassandra because avoid bottlenecks, fault tolerance, elasticity.     After have multi-nodes in Cassandra, the next step is divide task between their. Secondly join the databases like only one ( reply all information among their...
on Oct 3, 2012
by Raymond Roestenburg and Rob Bakker, authors of Akka in Action Save 40% on Akka in Action and other selected books. ScalaTest is a xUnit style testing framework. An actor is an object that can be reached through an address, processes messages from a mailbox and sends messages to other actors using the same type of addresses. An actor encapsulates state; it does not share this state with...
on Sep 28, 2012
by Dan McCreary and Ann Kelly, Authors of Making Sense of NoSQL Bigtable systems are important NoSQL data architecture patterns because they can quickly scale to manage large data volumes. They are also known to be closely tied with many MapReduce systems. In this article from Making Sense of NoSQL, the authors discuss how Bigtable systems store data using row and column keys and how they...
on Sep 10, 2012

Programming

As this JavaRanch article by Mark Spritzler proofs, there seem to be some people that like to have a generic visitor pattern, so I decided to open source mine (LGPL), which lies around here on my disk for some time. Have fun using it, it is as simple as linking to: <dependency>    <groupId>eu.headcrashing.treasure-chest</groupId> ...
on Oct 3, 2012
I hate adding lots of huge multi-JAR all-purpose common libraries to rather small projects! Huge footprint just for a single class is a side effect of many popular frameworks, unfortunately, due to rather coarse-grained modularity. So I started to publish some of my commons (LPGL'ed) code as single-class self-contained artifacts on The Maven Central Repository. You simple need a Range<T>...
on Sep 7, 2012
You want JAXB to unmarshal singletons? You already spent lots of time coding rather complex workarounds applying XmlAdapters and afterUnmarshal callbacks? The solution is astonishingly simple. Possibly so simple that nobody in the JAXB team ever thought it would be necessary to put the word "singleton" somewhere next to the JavaDocs for this... Anyways, here is the solution: import javax.xml...
on Jan 14, 2012

Open Source

OSCON Friday July 20, 2012 live streaming Speaker Slides and Video Table of Contents 1 10am Declarative web data visualization using ClojureScript 2 11am Client/Server Apps with HTML5 and Java 3 11:50am Hacking JavaFX with Groovy, Clojure, Scala, and Visage 1 10am Declarative web data visualization using ClojureScript Kevin Lynagh What is Visualization? EdgeBio : bioinformatics...
on Jul 20, 2012
OSCON Thursday July 19, 2012 live streaming Table of Contents 1 9:00am OSI - Simon Phipps 2 9:05am Making Magic From Cloud To Client - Mark R. Shuttleworth (Canonical Ltd.) 3 9:30am Open Source: A Recipe For Success - John Mone (Endurance International Group) 4 9:45am An Interview with Gianugo Rabellino (Microsoft) - Edd Dumbill (O'Reilly Media, Inc. ) 5 9:55am Disrupting Hardware: The Next...
on Jul 19, 2012
OSCON Tuesday July 17, 2012 live streaming Table of Contents 1 9:00am CSS: Go from Good to Great 2 1:30pm Build Social and Personal Data Apps using the Open Source Singly Platform 3 6:00pm Exhibit Hall 4 8:00pm Party at Puppet Labs 1 9:00am CSS: Go from Good to Great Estelle Weyl http://www.standardista.com/ http://estelle.github.com/oscon2012/ http://estelle.github.com/...
on Jul 17, 2012
OSCON Monday July 16, 2012 live streaming Table of Contents 1 9:00am Building applications with MongoDB: An introduction 2 1:30pm Getting Started with OpenStack 3 1:30pm Scala Koans 1 9:00am Building applications with MongoDB: An introduction Steve Francia slides: http://www.slideshare.net/spf13/oscon-2012 excerpts: IDEAL horizontal scaling cloud compatible, commodity...
on Jul 17, 2012
I'm at OSCON in Portland, Oregon this week. I will be posting my notes here.
on Jul 17, 2012

J2EE

We build too many walls and not enough bridges. Isaac Newton Introduction In my previous blog post, I have asked to many of you this question: "What JSF should become?". And since then, I was quite silent. The reason behind it, is that I was working to build a concrete implementation of this vision and today I'm glad to give you a concrete demonstration of it. So Ladies and Gentlemen, why...
on Apr 10, 2012

Education

I'll like to let you know the dates of JCertif 2011 the biggest Java Community Event in Africa. About 800+ attendees from many countries. We will be happy to have you as Speaker on Developer Tools, Java, Open Source, Mobile Apps...or Business solutions. I'll like to let you know the dates of JCertif 2011 the biggest Java Community Event in Africa. About 800+ attendees from many countries....
on Jan 1, 2011