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Welcome TomorrowPosted by editor on November 17, 2008 at 7:03 AM PST
JPA 2.0 shaping up Among the most welcome features of Java EE 5.0 and EJB 3.0 was the Java Persistence API, which not only offered a nice alternative to EJB's container-managed persistence, but also stood alone as a general-purpose object-relational mapping framework. In fact, it's even suitable for use in desktop applications, as Josh Marinacci demonstrated in his article, An Introduction to Java Persistence for Client-Side Developers. Still, time moves on, and no 1.0 project suits everyone's needs, so it's a pleasure to see that JPA 2.0 is on its way. As The Aquarium points out, the JPA 2.0 Public Review Draft is Now Available:
So what's new? Linda says it will take two blogs to hold it all, starting this time with JPQL improvements:
Embeddables with dot notation, maps, ordered lists... lots of interesting stuff to chew on in this preview. The Aquarium post adds, "the expert group is soliciting feedback at jsr-317-pdr-feedback at sun dot com. Linda promises a follow-up blog entry describing the changes to the Criteria API, and she also gave a fast (10m) presentation as part of the GFv3 Prelude launch (details, replay, slides)." Also in Java Today, Van Riper points out a free Java community event during QCon San Francisco. "QCon San Francisco has invited bay area Java Developers to a Java Community Event on Thursday November 20th, 2008. This free event will be a one-hour long panel on the State of Java with well known Java luminaries and QCon SF speakers. Although free, an advance RSVP is required and space is limited. The registration page also lists who has already signed up to attend this event at the bottom of the page." Sun recently released a new version of its open-source Java application server. GlassFish V3 Prelude targets the Web tier, and is based on a modular architecture that ties optional plug-in modules into a small kernel via OSGi. In a new Artima interview, John Clingan, Sun's GlassFish Group Product Manager, and product management director Paul Hinz, describe the latest GlassFish features most relevant to developers, including rapid deployment, and working with Rails applications. In today's Weblogs, Kohsuke Kawaguchi discusses the hazards of and solutions for Compiling with JDK6 and running on JDK5. "It's common for a Java project to compile with later versions of JDK than it minimally requires. But when you do this, there's a danger that you have accidental dependency that breaks your software when run in earlier JDKs. So I wrote a tool to verify this." In Ease of development in the Java EE 6 Platform, Roberto Chinnici offers "an overview of ease of development features in the Java EE 6 platform." Got Merb? In TOTD #52: Getting Started with Merb using GlassFish Gem, Arun Gupta writes, "GlassFish Gem 0.9.0 was recently released. It can run any Rack-compatible framework such as Rails and Merb. The gem is even extensible and allows to plug any of your favorite Ruby framework using -apptype switch (more on this in a future blog). This blog shows how to install the gem and use it for running a Merb application." Marking the beginning of a new contest, this week's Spotlight is on the Project Darkstar Developer Challenge, looking for the best applications and utilities for Project Darkstar written by independent developers and students. The contest offers some enticing awards: grand prize winners get a 2009 Game Developer Conference (GDC) pass and an opportunity to show their work in a GDC presentation, plus cash for travel and a feature on the Project Darkstar site. Entrants must be members of the Project Darkstar community, and must submit their entries between November 17, 2008 and January 19, 2009.
In today's Forums, Bill Kocik has a big-picture followup question in the thread Re: Remote deployment of Rails app. "That actually raises another question. I'm aware of Warbler (and Goldspike, for that matter), and it's very cool - but I thought one of the advantages of GlassFish v3 is that you no longer have to package your app into a war file to deploy it. The question is: Why is that an advantage? I've never been really sure where to ask that question." Ryan de Laplante asks Can SIP servlets be used to create a menu based phone system? "I've only done a tiny amount of reading about Sailfin, SIP servlets, JSR 116 and 289. It's not clear what kinds of systems I can write with this. Can I write a system that people phone into, enter a user ID and password, and follow voice prompts to interact with our systems? Can I respond to an application event by phoning someone and playing a recorded message or using text-to-speech?" Finally, Current and upcoming Java Events :
Registered users can submit event listings for the java.net Events Page using our events submission form. All submissions go through an editorial review before being posted to the site. Archives and Subscriptions: This blog is delivered weekdays as the Java Today RSS feed. Also, once this page is no longer featured as the front page of java.net it will be archived along with other past issues in the java.net Archive. JPA 2.0 shaping up »
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