Sun GlassFish Enterprise Server v2.1.1 Developer's Guide

Summary of EJB 3.0 Changes

The Enterprise Server supports and is compliant with the Sun Microsystems Enterprise JavaBeans (EJB) architecture as defined by the Enterprise JavaBeans Specification, v3.0, also known as JSR 220.

Note –

The Enterprise Server is backward compatible with 1.1, 2.0, and 2.1 enterprise beans. However, to take advantage of version 3.0 features, you should develop new beans as 3.0 enterprise beans.

The main changes in the Enterprise JavaBeans Specification, v3.0 that impact enterprise beans in the Enterprise Server environment are as follows: