An EJB client is a client program that invokes the Enterprise Beans executed by the EJB container on a J2EE server.

The types of EJB clients are as follows:

• EJB client application
• Web applications such as servlets or JSPs
• Other Enterprise Beans

An EJB client application is a client application that invokes the Enterprise Beans running on a J2EE server.

The following table describes the functionality of an EJB client and the reference location for each functionality:

Table 3-1 Functionality of an EJB client and the reference location for each functionality

Functionality	Reference location
Functionality that can be used in an EJB client	3.2
Starting EJB Client Applications	3.3
Invoking an Enterprise Bean	3.4
Implementing a transaction in EJB client application	3.5
Implementing security in EJB client application	3.6
Obtaining RMI-IIOP stubs and interfaces	3.7
System log output of EJB client application	3.8

This chapter mainly describes the functionality of the EJB client applications.