Database Integration Level
Database integration is handled mainly by classes in the Enterprise Objects Framework (see Figure 18). The Enterprise Objects Framework converts operations on objects to database operations on records, thereby allowing your WebObjects application to interact with a database in an object-oriented manner.
- WODisplayGroup (in Java, DisplayGroup)
- EOEditingContext (in Java, next.eo.EditingContext)
Performs fetches, queries, creations, and deletions of records from one table in the database. WODisplayGroup is a sort of bridge between the dynamic elements on your page and the objects in the Enterprise Objects Framework.
Manages a graph of objects fetched from a database. The objects represent tables, rows, and columns in the database.
For more information on how the WebObjects and Enterprise Objects classes interact, see the Enterprise Objects Developer's Guide.
Table of Contents Next Section