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Section 7. Example 1: Creating the client application

The

UserManagement

client

In the interest of completeness you have to have a client that can exercise your

example. The client in this application does the following:

Looks up the

UserManagement

session bean using JNDI

Adds two user to the system using the addUser method of the

UserManagementBean

Verifies that one of the user s password is "mypassword" using the

verifyPassword()

method of the

UserManagementBean

Then removes the two users using the removeUser method of the

UserManagementBean

The complete code listing for the client is listed below.

In order for the application client to access the session bean, it needs an ejb ref

element entry in its deployment descriptor (

application client.xml

) shown in the

example column to the left below the home interface listing.

Notice the manner that you access the session bean from the client is similar to the

way the

UserManagement

session bean access the User entity.

Listing 7: The

UserManagement

Client code

/** Client code */

package com.rickhightower.client;

import com.rickhightower.auth.UserManagement;

import com.rickhightower.auth.UserManagementHome;

import javax.naming.Context;

import javax.naming.InitialContext;

import javax.rmi.PortableRemoteObject;

public class Section2Client {

public static void main(String[] args) {

try {

Context initial = new InitialContext();

Object ref =

initial.lookup("java:comp/env/ejb/UserManagement");

UserManagementHome home =

(UserManagementHome)PortableRemoteObject

.narrow(ref,UserManagementHome.class);

Introducing EJB CMP/CMR, Part 1 of 2

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