Enterprise JavaBeans 3.1 (EJB 3.1) Technology Overview
TS-4605

This session provides an overview of Enterprise JavaBeans 3.1 (EJB 3.1) -- JSR 318 -- technology.

With its 3.0 release, the EJB architecture was dramatically simplified through a focus on ease of use for application developers. The purpose of the EJB 3.1 specification is to build on the success of that approach by further simplifying the EJB architecture at all stages of the development lifecycle while also adding significant new features requested by the community.

The session covers

• .war packaging of components based on the EJB specification (EJB components)
• A "no interface" local EJB component view
• Portable global Java Naming and Directory Interface API names
• EJB "Lite" technology -- a standard lightweight subset of the EJB technology-based API
• Standardized unit testing support via the embeddable EJB technology-based API
• Singleton beans
• Startup/shutdown callbacks
• Asynchronous session bean invocations
• Automatic timer creation and calendar-based scheduling