What is SPARQL?
by David Wood, Marsha Zaidman, Luke Ruth, and Michael Hausenblas, authors of Linked Data
SPARQL is the query language for RDF and Linked Data. SPARQL is to RDF data as the Structured Query Language (SQL) is to a relational database. SPARQL's name is nicely pronounceable and sounds interesting and fresh. SPARQL is interesting and fresh. This article, based on chapter 5 from...
Six Ways You're Using Responsive Design Wrong
by Matthew Carver, author of The Responsive Web
Staying on the cutting edge of of web design can be tough, and oftentimes you only learn from making mistakes. Making mistakes is sometimes the best way to know that you are breaking new ground. In this article, Matthew Carver, the author of The Responsive Web, gives a few tips that his experience in...
Defining Functional Data Structures
by Paul Chiusano and Rúnar Bjarnason, authors of Functional Programming in Scala
Functional programs do not update variables or modify data structures. This raises pressing questions—what sort of data structures we use in functional programming, how do we define them can in Scala, and how do we operate over these data structures? This article,...
The Foundations of Mobile First Design
by Matthew Carver, author of The Responsive Web
In this article from The Responsive Web, author Matthew Carver opens up a discussion of how to build a site for a mobile or small-screen device using a graphic design program, such as Photoshop.
Building a site in its smallest iteration first affords the designer a lot of opportunities. By starting in a...
I have a new blog at http://timboudreau.com - and there are new NetBeans plugins for node.js, source code for the NetBeans VNC modules, plus a nifty Netty-based framework for asnchronous web apps, and more.
Natural User Interaction with Drag-and-Drop
by Rob Crowther, author of Hello! HTML5 and CSS3
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...
More than a few days ago a friend pinged me complaining that recent Eclipse release was quite sluggish. Since she had taken my performance tuning seminar she knew exactly how to get and read a GC log but as we all do, she was looking for a second opinion. After looking at the log for a minute it because quite apparent that the default configuration left the IDE starved for memory. After a bit more analysis we came to the conclusion that it is very likely that the 4.2 version of Eclipse is suffering from a memory leak. I thought I’d jot down a few notes about the process that led us to that conclusion.
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...
Architecture and Star Schema
by William D. Back, Nicholas Goodman, and Julian Hyde, authors of Mondrian in Action
Mondrian is expecting to perform its analytic magic on top of a star schema. In this article, based on chapter 3 of Mondrian in Action, the authors cover the general architecture of an analytic solution and then explore star schemas, the "best practice" database modeling technique...
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...
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 anyone. An actor has behavior, it does something specific with the messages it receives. This article, based on a portion of chapter 2 from Akka in Action, shows how to test actors and send one-way messages.
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 are used in several business applications.
After years of absence, JGoodies now is available on Maven Central again!
The Application-Architectures document is the "Pet Store" of FX.js. It describes the three approaches -- Pure-Script, Front-End, and Embedded -- available to FX.js programs. It also includes sample code for a simple directory-watcher to illustrates the differences.
Use FX.js (http://fxjs.java.net/) with the fully-integrated JavaFX runtime (JDK 7 update 06)
JavaFX has certainly come a long way in the past 18 months or so. But, will its momentum continue to the point where it eventually displaces most other platforms that are used for developing Java client/desktop applications? Our recently completed Java.net poll asked the community for its views on the future of JavaFX. A total of 660 people cast votes...
Our JavaFX poll, which was temporarily closed (while the Duke's Choice Award poll was live), has resumed. The poll will remain open until this coming Friday, July 27. Specifically, the poll asks...
Release announcement for SwingX 1.6.4.