What Are CMP and BMP Anyway?
The main goal for having two different types of entity beans is to give developers the ultimate flexibility for implementing entity beans as they see fit, but clients of the bean do not have to be aware or concerned with the implementation. This is accomplished by giving you container managed persistence and bean managed persistence. First, container managed persistence addresses one of the main goals of Enterprise JavaBeans, which is to split work between the component developer and the container. The goals for container managed persistence are basic and important: • Free up the developer to work on business logic rather than persistence. This is accomplished by allowing the container to manage all the persistence and loading of data. For example, if you are developing an order entry system, you can communicate only to a data source using SQL, thus the communication is well defined and fairly repetitive except for the data context. • Persistence services can be developed by persistenc
