1 Understanding the OracleAS TopLink Mapping Workbench

The Oracle Application Server TopLink Mapping Workbench is a separate component from Oracle Application Server TopLink — it allows you to graphically configure descriptors and map your project. The OracleAS TopLink Mapping Workbench can verify the descriptor options, access the data source, and create the database schema. With the OracleAS TopLink Mapping Workbench you can define OracleAS TopLink descriptors without using code.This chapter includes the following subjects:

• Starting the OracleAS TopLink Mapping Workbench

• Working with the OracleAS TopLink Mapping Workbench

• Working with Workbench Preferences

• Working with the OracleAS TopLink Mapping Workbench in a Team Environment

To Use the OracleAS TopLink Mapping Workbench in a Java Application:

1. Define an object model (a set of Java classes) to describe and solve your problem domain.

2. Use the OracleAS TopLink Mapping Workbench to create a project, import your Java classes and relational tables, and specify descriptors to describe how the classes map to your relational model.

3. In your Java application, create an OracleAS TopLink session and register your descriptors. Add logic to your application to use the session to retrieve and store objects from and to the database.

Figure 1-1 Using the OracleAS TopLink Mapping Workbench

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