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Java Desktop

The Fundamentals of a JavaScript Test Suite by John Resig and Bear Bibeault, authors of Secrets of the JavaScript Ninja As important as a solid testing strategy is for all code, it can be crucial for situations where external factors have the potential to affect the operation of your code, which is exactly the case you're faced with in cross-browser JavaScript development. In this article...
on Feb 7, 2013
Tuesday at Jfokus 2013 started in a large auditorium filled with more than 1500 Jfokus attendees, who heard Jfokus founder Mattias Karlsson launch the conference in an introduction that included an appearance by Stephen Chin, who had spent the previous night sailing the icy Baltic Ocean on the Vaadin Cruise from Finland. The conversation also introduced a new Java Champion, JRuby's Charles...
on Feb 5, 2013
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...
on Dec 20, 2012
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...
on Dec 19, 2012
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,...
on Nov 26, 2012
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...
on Nov 14, 2012

Java Enterprise

Sometimes, life drops a house on your code. Sometimes, it's flying monkeys. Most of the time though, the damn stuff just stops working and it's nothing so obvious as being crushed by a Kansas farmhouse or being carried away by winged primates. For this last common case, there are a good number of great tools to help you out. JMeter may help you to reproduce the conditions under load, while...
on Feb 1, 2013
As a test, I re-created the HRSystem application as described in the tutorial Developing Rich Web Applications With Oracle ADF. It's more than your basic Hello World application. For starters, the HR system application accesses a database. It also takes advantage of some sophisticated ADF features, such as graphs, page flows, auto-suggest, menu options to export to Excel and display in...
on Jan 23, 2013
In my last blog post, I explained how to add versioning capability to templates. Being able to create, view and restore different versions of templates is great, but sometimes it's not so easy to see what has actually changed. And we might not be as lucky as having comments about the change from the author, or they might be cryptic to the point of being useless. So let's try and add the diff and...
on Jan 22, 2013
Many of the Oracle Java development tutorials that access a database do so against the Oracle HR sample schema. See, for example, Developing Rich Web Applications With Oracle ADF. There are several approaches you can take to getting the sample schema installed in the Oracle Cloud, such as Using SQL Developer or JDeveloper as demonstrated in Shay's blog. In my case, we're going to run the SQL...
on Jan 17, 2013
Servlet 3.1 is in Public Review now. New features in Servlet 3.1 and changes since the EDR are listed below: support Non Blocking IO ReadListener, WriteListener are added to handle the non-blocking IO. And the corresponding setters are added to ServletInputStream and ServletOutputStream respectively. Futhermore, ServletInputStream#isFinished, #isReady and ServletOutputStream#isReady are added....
on Jan 11, 2013
The recently completed Java EE 7 community survey indicates that most developers generally agree with the direction current Java EE 7 development is taken. While the survey was not scientific, many of the more than 1,100 participants took the time to submit well-thought-out comments in addition to making selections on the specific questions. These comoments generally back up the consensus that...
on Dec 27, 2012
Note this blog is obsolete, see https://www.manorrock.com/blog/ for the current blog Whenever the JSF runtime needs to perform a conversion it uses a Converter to do so. As explained in previous blog entries you have the ability to implement your own Converter. But does that mean you need to implement it for simple conversions? No, you do not, the default JSF converters come to the rescue!...
on Dec 26, 2012
Note this blog is obsolete, see https://www.manorrock.com/blog/ for the current blog The following blog articles are part of the JSF State Saving series Introduction to JSF State Saving The JSF State Saving APIs The JSF StateHolder API The JSF PartialStateHolder API The StateHelper API
on Dec 19, 2012
I introduced myself to Konstantin Shvachko after hearing him speak in the Duke's Choice Awards BOF session at JavaOne 2012 (Hadoop was a 2012 award winner). Konstantin happened to be sitting right next to me in the audience, so before we exited the session, I asked him if we could arrange a chat before JavaOne ended. You've probably heard of Hadoop, but a great many likely don't know much...
on Dec 16, 2012
Note this blog is obsolete, see https://www.manorrock.com/blog/ for the current blog To facilitate component developers a convenience API was introduced to make it easier to implement the state saving requirements. Access to this API is made available through UIComponent.getStateHelper(). The API defines the following methods:   void add(Serializable key, Object value)   Object eval(...
on Dec 15, 2012
After a long time away, I'm raising my head again on the java.net site. I once roamed these java.net streets as a JDK developer at Sun Microsystems, then as an end-user of the JDK while at a few startups, and now...well, I'm back again. This time, I've acquired years of J2EE experience, have created my share of SaaS and web service offerings, and have way too much to say about globalization of...
on Nov 14, 2012

JCP

Java User Group Cologne has decided to adopt JSR 344 (JavaServer Faces 2.2) and JSR 346 (Contexts and Dependency Injection for Java EE 1.1). In an announcement on Google+, JUG Cologne stated: Efforts will be aggregated and coordinated by Daniel Sachse and Michael Müller, both already individual expert members of the respective JSRs. I asked Java Champion Michael Huettermann a few questions...
on Jan 31, 2013

Java User Groups

Toward the end of JavaOne 2012, the Java.net editorial team spent an hour or so in the very windy Taylor Street Cafe (a closed street block with umbrellas, tables and chairs, coffee, etc.) with Oracle Ace Director Markus Eisele (@myfear). Markus is a technology consultant, architect, developer, author, and conference speaker. He's also active in communities including Java User Groups, the JBoss...
on Jan 7, 2013

Java Patterns

A few thoughts on how logging ought to be over at my new blog.
on Dec 5, 2012