Chapter 26. Exercises for Chapter 8
Exercise 8.1: Simple EJB QL Statements
The exercises in this section reveal some of the basic aspects of
EJB QL programming and
functionality. You’ll explore
basic finder methods,
methods, and the use of the
operation in EJB QL queries.
Start Up JBoss
If you already have JBoss running, there is no reason to restart it.
Build and Deploy the Example Programs
Perform the following steps:
Open a command prompt or shell terminal and change to the
ex08_1directory created by the extraction process
JBOSS_HOMEenvironment variables to point to where your JDK and JBoss 4.0 are installed. Examples:
C:\workbook\ex08_1> set JAVA_HOME=C:\jdk1.4.2 C:\workbook\ex08_1> set JBOSS_HOME=C:\jboss-
$ export JAVA_HOME=/usr/local/jdk1.4.2 $ export JBOSS_HOME=/usr/local/jboss-4.0
antto your execution path.
C:\workbook\ex08_1> set PATH=..\ant\bin;%PATH%
$ export PATH=../ant/bin:$PATH
Perform the build by typing
As in the last exercise, you will see
rebuilt, copied to the JBoss
and redeployed by the application server.
Examine the JBoss-Specific Files
This exercise introduces no new features in JBoss-specific files. If you think you need to, review Exercise 6.1 of this workbook to understand the JBoss-specific files in this example.
Initialize the Database
The database tables for this exercise will automatically be created in JBoss’s default database, HypersonicSQL, when the EJB ...