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Java Enterprise

Enrique Rodriguez Lasterra has started blogging on Comet (here and here). If you are planning to start implementing Comet in your application, take a look at his blog. It's in Spanish, but event myself I was able to understand it :-).....time to go to Spain and increase the red spot in order to beat the one from Brazil! Who will win, Brazil or Spain? technorati: grizzly comet ajax glassfish
on Jun 11, 2007
Project Grizzly 1.5.1 has been released and marked as alpha. The reason for marking the release as alpha is mostly because we have made a lot of additions since 1.5.0 and would like to ask the community to test it. We recently got a lot of good feedback and would like to make sure every user of Grizzly can test with 1.5.1 and vote for our upcoming release, targeted as stable. Personnaly I...
on Jun 8, 2007
Just when we thought it was safe to call jMaki feature complete we got a lot of feedback for various features that could all be handled by a single extension feature. What are extensions in jMaki? Extensions are behavior / functionality that are shared across widgets. Extensions are loaded after the jmaki.js and before glue (your application logic). Examples may include enhanced debugging...
on Jun 7, 2007
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on Jun 6, 2007
In Restricting Access to your Ajax Services we discussed the options that you may use to protect your services which included using an API key. Creating and Using API Keys for Java Based Ajax Services provides both the client and server code for using API keys on your Java based services. Included in the document are a discussion on the motivations and limitations of using API keys with servlets...
on Jun 4, 2007
This Sample Store Catalog app demonstrates the usage of JSF, the new Java Persistence APIs, and a Stateless Session EJB to implement pagination in a Java EE 5 application download sample code Sean Brydon Carol McDonald Pagination using Java Persistence APIs  The Java Persistence Query APIs are used to create and execute queries that can return a list of results.  The query APIs...
on May 31, 2007
The very tiny JRuby on Grizzly module is now shipping and will soon be part of the Grizzly official distribution. You can now start testing it and eventually replace your Mongrel or WEBrick native WebServer with the pure Java Ruby Bear :-). You can download the JRuby on Grizzly ready server here. Then just do: % unzip jruby-on-grizzly-1.5-SNAPSHOT.jar% cd jruby-on-grizzly% java -jar ruby-1.5-...
on May 30, 2007
GlassFish version 2 monitoring capabilities GlassFish version 2 provides good mentoring information about different aspects of application server and all of your applications that are deployed into GlassFish but before it can show those statistical information you need to configure its monitoring service. Figure 1. Although this statistical and monitoring information and the way that they are...
on May 27, 2007
The "Tricks and Tips with NIO, Using the Grizzly Framework" session presented at JavaOne 2007 is now online. You can also find the Embedding the Grizzly Framework BOF here. If you are interested to contribute to Project Grizzly, just start here! technorati: grizzly nio glassfish _uacct = "UA-3111670-1"; urchinTracker();
on May 24, 2007
Deployment specific web application configuration using context.xml in GlassFish was added a couple of months ago but related questions keep coming up on mailing lists and forum so I've decided to blog about it so it's easy to point out. ;-) Similar to Tomcat you can define your context.xml as follows. 1. Global context.xml glassfish/domains/domain1/config/context.xml which will be loaded...
on May 23, 2007
The objectives of the GlassFish V2 hands-on-lab at JavaOne 2007 are to familiarize the participants with Java EE 5 technologies using glassfish-samples project and to provide hands-on on enterprise clustering feature using load balancer and in memory replication The entire lab material and the individual screencasts are available on SDN and can be downloaded. Here are the links: Java EE 5...
on May 22, 2007
Google Checkout is a Google service that enables a faster, safer and more convenient way to shop online. Online merchants can implement Google checkout on their websites, and then they do not need to worry about managing credit-cards information and privacy of user accounts. Besides, Google provides free credit-card processing until the end of 2007 and will later provide credit for adwords...
on May 21, 2007
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on May 17, 2007
Reading a recent tech tip regarding access of directory listings in Sun Java System Web Server 7.0 prompted me to browse Sun's BigAdmin site in more detail. It's chock full of handy resources for sys admins, from FAQs to documentation to scripts to discussion groups to references, many of which are contributions from the community.It's a no-brainer that sys-admin knowledge would be handy for...
on May 17, 2007
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on May 15, 2007
The Zilonis Rules Engine is a Java Rules Engine that is Thread-Safe. It was presented yesterday at the JavaOne. The presentation discussed the challenges of implementing a Pricing Service in Retail, why using a Rules Engine would be a challenge, and the way Zilonis solves those scalability issues. We finished the session with the details of how it uses Read-Write Locks to achieve the...
on May 10, 2007
I just had a nice discussion with John Clingan, product manager on Glassfish, about EJB3 and Glassfish in particular. One of the thing that strikes me with EJB3 is that Sun seems not to be able to let go of old stuff. Right now an EJB3 application server needs to support EJB2 and EJB3 and must make sure that they do not conflict. This is going to convolute the code and drags down the performance...
on May 8, 2007
It's always when I'm super busy when I decided to work on random things that take too much time. This time, it is improving the theme of Glassfish component sites. As some of you might have noticed, Glassfish, its component sites (like JAXB and JAX-WS), and Wiki have just gotten a new look&feel. The new L&F emphasizes the stronger relationship among component projects, and it's...
on May 6, 2007
With the 2007 JavaOne Conference four days away, I thought I'd share some session recommendations with my fellow attendees. Since Arun Gupta beat me to it, you should take a good look at his choice of sesssions, which has a large overlap with mine, then take note of a few differences. I bet you don't need me or Arun to tell you to attend Ben Galbraith's Ajax talk (TS-6836) or that other...
on May 4, 2007
JavaOne is practically here, so I thought I'd give a preview of one of the sessions I'm on next week. This one is close to my heart, BOF 6825 Testing Web 2.0 Features, Using Real-World Applications. I'll be talking about using The Mozilla Control Program (MCP) to write an automated test that exercise an Ajax application. Big deal, right? Well, yes because MCP enables you to make assertions...
on May 4, 2007