Java Reference
In-Depth Information
Setting up the database
We will create a database named
ticketsystem
; we will then add a user named
jboss
and assign him/her all privileges on the schemas.
Open a shell under the
bin
folder of your PostgreSQL installation and launch the execut-
able
psql -U postgres
. Once logged in with the password from your installation, ex-
ecute the following commands:
CREATE DATABASE ticketsystem;
CREATE USER jboss WITH PASSWORD 'jboss';
GRANT ALL PRIVILEGES ON DATABASE ticketsystem TO jboss;
Our simple schema will be made up of two tables: the
SEAT
table, which contains the list
of all the available seats in the theatre, and the
SEAT_TYPE
table, which is used to cat-
egorize the seat types. The two tables are in a
1-n
relationship and the
SEAT
table hosts a
foreign key that relates to the ID of the
SEAT_TYPE
table. We will, however, let JPA gen-
erate the schema for us, based on our class hierarchy, which we will model in a moment.
