Java Reference
In-Depth Information
Chapter 21
Introduction to
Enterprise JavaBeans
This chapter will serve as an almost criminally brief introduction to Enterprise
JavaBeans, their varieties, and their uses.
21.1
W
HAT
Y
OU
W
ILL
L
EARN
You will learn the basics of Enterprise JavaBeans and the Java Naming and
Directory Interface, which is how applications and EJB's meet up with one
another.
21.2
E
XPANDING TO
EJB
S
All right, we'll admit it. It is a bit of a stretch to expand our sample application
to the J2EE Enterprise JavaBean component model. The truth is, given the
small data requirements and simplicity of our application, the Web front end
that we put on our application in the previous chapters is probably sufficient
to scale our application to even very large organizations.
473
