BEA WebLogic Server™ 8.1 Unleashed

Creating BMP Entity Beans

The DoctorEJB Entity bean represents information about a doctor. Its attributes are an ID, first name, last name, and specialty. The ID will be an Integer and it will be the primary key. Because this class is already defined and we're using a single value for the primary key, we don't need a custom primary key class for this Entity bean. In this section, we're going to create an Entity bean with BMP that uses JDBC to access a single table named Doctor in a data store. The database definition for this table is shown in Listing 22.1.

Listing 22.1. Doctor.ddl

CREATE TABLE Doctor ( ID INTEGER NOT NULL, FIRSTNAME VARCHAR(20), LASTNAME VARCHAR(20), SPECIALTY VARCHAR(20) );

Creating the Home Interface

The Home interface ...