Mobile and Embedded Community News Highlights
The java.net Mobile and Embedded Community is one of the most actively communicative communities on java.net. Terrence Barr just published a new Mobile and Embedded Community News Update, which is featured in today's Java Today. We're also featuring two of the items in Terrence's update in Java Today: news about a Free "Summer Camp" courses introduce students to Java, JavaFX!, and a pointer to Steven Chin's blog post JavaFX Mobile Ready for Primetime!
Terrence's update also mentions the latest two Java Mobility Podcasts (84: Valderi Leithardt on using SunSpots for gesture recognition, and 83: JATAF panel discussion. We have a java.net page that is an index to all Java Mobility Podcasts, dating back to Mobile and Embedded Podcast 1: Introduction to the Community, which was published on April 23, 2007. As you can see, the Mobile and Embedded community is quite active when it comes to podcasting. A total of 84 podcasts have been published in just under 28 months, an average of three podcasts per month. That's an example of what I meant in saying the Mobile and Embedded community is very communicative. It's an excellent reference source for news in the Mobile and Embedded realm.
Even in this "quiet" summer time period there is plenty of newsworthy information flying around.
In Java Today, Terrence Barr provides a Mobile and Embedded Community News Update: 'Even in this "quiet" summer time period there is plenty of newsworthy information flying around. A list of new items posted to the Java Mobile & Embedded Community home page: Free "Summer Camp" courses introduce students to Java and JavaFX (deadline 8/14); Steven Chin on JavaFX Mobile ready for prime time...'
The java.net Mobile and Embedded Community came across a nice opportunity for students, Free "Summer Camp" courses introduce students to Java, JavaFX!: 'Yesterday, I was sent some information on a really cool and FREE "summer camp" course on JavaFX for students between the ages of 13-18, that has just a few weeks left, so please don't waste any time checking out the links! The course is brought to you by FreshBrain, which is an education platform for youth that focuses on technology and offers opportunities for teenagers to learn about and work with cutting-edge technologies in a safe community environment.'
The Mobile and Embedded Community also points us to Steven Chin's JavaFX Mobile Ready for Primetime!: "I was the very first person to buy an HTC Diamond at JavaOne. (Jacob Lehrbaum probably thought he was about to be mugged as I stalked him into the Java Store.) It worked out great for my presentations, but I had to tip-toe around some issues that showed up only on applications deployed to the phone. However, the latest JavaFX 1.2 EA release is ready for primetime! The installation was a breeze and all of the JavaFX applications I have tried on it so far have worked great."
Fabrizio Giudici posted Branch-per-feature, and it's another world: "After some experimenting and after moving all my projects to Mercurial repositories at Kenai, I've at last started regular working with it. Well, it's another world - I've already blogged a bit about some cool features of working with a..."
And Arun Gupta provides TOTD #90: Migrating from Wicket 1.3.x to 1.4 - "Couldn't load DiskPageStore index from file" error: "Now that Apache Wicket 1.4 is available, migrating from previous versions is pretty straight forward. Change the version in your POM file to 1.4.0 using the
wicket.version element. And that's it! The complete dependency may look like..."
In the Forums,
Sean Comerford has a War deployment question: "When I execute asadmin deploy myApp.war, it seems that that the corresponding directory (
$GF_HOME/applications/j2ee-modules/myApp) is always deleted before asadmin unzips my war there once again. Is there a way to prevent this from happening? That is I just want the contents of my war to overlay what is already in
$GF_HOME/applications/j2ee-modules/myApp... I do NOT want that directory deleted. This is b/c I have JSP-like template classes that take a loooonnnnng time to generate..."
culliasks about getNonTxConnection: "I have inherited a collection of rest web services and have found one that is leaking JDBC connections thanks to the connection leak detection in Glassfish. While reviewing that code I noticed that it calls
DataSource.getNonTxConnection(). Reading the docs and googling it a bit leads me to believe that the code should probably not be calling that. I'm thinking that it should be contained in a transaction to contain the business process the web service is doing. Using it seems like it would expose the process to dirty data. The process in question is reading data from several places (mostly just doing reports)..."
ynk_dev wonders about JTable sizing method: "Is there a decent way to make JTable show data the way it is shown when using an auto resize method (i.e make the columns fill the available space) but still have resizing behaviour as if auto resizing is disabled (which allows resizing columns beyond the available viewport space and show scrollbar if needed)? Currently if have succeeded in doing this by setting my table's autoResizingMethod to AUTO_RESIZE_OFF and resizing the columns myself. So far, so good, but when the table is shown for the first time, it flickers (probably due to the fact that the table was initially painted with the columns preferred sizes) which is quite annoying..."
The current Spotlight is Mario Fusco on the Lambdaj Project: "Jim Wright interviews Mario Fusco, creator of the Lambdaj Project, in this java.net Community Corner 2009 podcast, recorded at JavaOne: "Lambdaj is a library that makes easier to manipulate collections in a pseudo-functional and statically typed way. In our experience to iterate over collection, especially in nested loops, is often error prone and makes the code less readable. The purpose of this library is to alleviate these problems..."
This week's java.net Poll asks "Which feature phone platform offers developers the greatest capability?". Voting will be open through Thursday.
Our Feature Articles include Jeff Friesen's article Introducing Custom Paints to JavaFX, which shows how you can leverage undocumented JavaFX capabilities to support custom paints in JavaFX Version 1.2. We're also featuring Biswajit Sarkar's Using the Payment API for Microcredit and Other Applications, which describes how to apply the Payment API (JSR 229) in JavaME applications.
The latest Java Mobility Podcast is Java Mobility Podcast 84: Valderi Leithardt on using SunSpots for gesture recognition.: "An interview with Ph.D. candidate Valderi Leithardt in Brazil on using SunSpots for gesture recognition."
Current and upcoming Java
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The java.net Mobile and Embedded Community is one of the most actively communicative communities on java.net...