3.1 Introduction to Business Services

Oracle recommends developing the model portion of an application using TopLink to persist POJO (plain old Java objects) for your business services, EJB session beans to implement a session facade, and how to expose the functionality through a data control. Oracle JDeveloper includes several wizards to quickly and easily create your model project.

Refer to Chapter 19, "Advanced TopLink Topics" for additional information on using TopLink ADF.

For detailed information on Oracle TopLink, refer to the complete Oracle TopLink Developer's Guide and Oracle TopLink Javadoc.

Tip: Most teams have their own respective source control management (SCM) procedures, policies, and common philosophies towards what constitutes a transaction or unit of work for the SCM system. In the absence of a policy, you should group logical changes into a transaction, and also commit your changes when you need to share your modifications with another member of your team. In general, it is not advisable to commit changes when they do not compile cleanly or pass the unit test created for them.