Special Edition Using Enterprise JavaBeans™ 2.0

Creating an Entity Bean

To implement BMP, you must code the callback methods within the bean class to perform the required database access. When a client calls a create method on the home interface, the container calls the corresponding ejbCreate on an instance of your bean class. The instance on which the method is called is the instance the container has selected from the pool to associate with the new entity object that’s being created. Your ejbCreate method is responsible for initializing the attributes of the entity, inserting it into the database, and returning its primary key value. Remember from Chapter 5 that the signature of an ejbCreate method must have the same parameter list as the corresponding create method in the home interface, ...