Object Oriented Model mappings

Chapter 12 Creating Mappings

In an Object Oriented Model (OOM), you can create the following types of mappings:

Object to relational (O/R) mapping between OOM classes and PDM tables to manage the persistence of objects in a relational database. See Object to Relational (O/R) mapping.
Object to conceptual mapping between OOM classes and CDM entities to express a simple correspondence between objects in a Conceptual Data Model.
Object to Object mapping between OOM classes and the classes of another OOM to express a simple correspondence between OOM objects.

The following table shows all the allowed mappings with OOM objects:

Target OOM object	Source PDM object	Source CDM object	Source OOM object
Class	Table	Entity	Class
Class attribute	Table column	Entity attribute	Class attribute
Operation	SELECT or UPDATE queries associated with a table	—	—
Association	Reference, view reference, table or view	Association, relationship	—