Wednesday Feb 15, 2012

GlassFish Adds Agility to Java EE Deployment

A new article by Julien Ponge on the front page of otn/java, titled “Adding Some Agility to Java EE Application Deployment with GlassFish,” reports on four noteworthy features in GlassFish that increase agility to Java EE application deployment.

* Session data preservation across redeployments

* Servlet fragments

* Application-scoped resources

* Application versioning

The article relies on a running example called TaskEE, a simple task list application that functions as a deployable application in which tasks are stored in a volatile Web session. Ponge shows how to morph TaskEE into TaskEEPA in order to store tasks in a relational database rather than a Web session.

Directly from the article:
“Deploying and managing Java Platform, Enterprise Edition (Java EE) applications seems like a fairly established activity. Applications can be deployed, undeployed, and upgraded through a combination of deployment and undeployment. Applications use various types of resources, such as JDBC connection pools or Java Message Service (JMS) destinations. Such resources need to be created, configured, and administered using an application server means, such as configuration files, command-line tools, and graphical interfaces. While the tasks do not vary much from one Java EE application server to another, each one is free to provide a broader set of features that make the developer’s and the infrastructure team’s jobs more enjoyable.”

Read the complete article here.

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