Sams Teach Yourself EJB in 21 Days

Sams Teach Yourself EJB in 21 Days, 9780672324239 (0672324237), Sams Publishing, 2002

With the introduction of Java in the mid-1990s, its portability was obvious on the client
side. Java has quickly become the language of choice for writing applications. Most
browsers support Java, and Java applets and Java applications can run on any machine or
operating system. But this is not enough for enterprise applications, which require serverside
Java support. Writing applications for the enterprise is usually a difficult task.
Enterprise applications must be scalable, portable, and secure. That’s what Java 2
Platform, Enterprise Edition (J2EE) is all about: a complete architecture and framework
for developing and deploying server-side Java components. Enterprise JavaBeans (EJB)
is the heart of the J2EE platform. It enables simplified development of distributed Java
applications. Other J2EE run-time services, such as JNDI, JDBC, and JMS, are vital in
completing the full picture of server-side component architecture.

Since the EJB 1.0 specification was introduced by Sun Microsystems in 1998, it quickly
gained industry momentum among application developers and vendors. Today, more than
25 application server vendors support EJB technology in their products. Charles Stack,
president and CEO of Flashline, states, “The EJB component architecture allows vendors
to simplify application development, [and] speed the delivery of high-quality products to
market…The market for commercial EJB technology-based components is rapidly growing
as more corporations adopt the J2EE platform as their primary development architecture.”
More than 20 companies collaborated with Sun Microsystems to finalize the EJB
2.0 specification in 2001. This demonstrates the industry’s support of and commitment to
building enterprise applications using EJB technology.

This book focuses primarily on teaching the EJB technology, but it also covers other
J2EE technologies that are essential to understanding EJBs. You’ll be introduced to all
aspects of EJB development using the most current version of the specification.

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