RPS Mapping

The Relational Population Service Wizard, documented in Chapter 15, "Using the Relational Population Service (RPS) Wizard", of the JADE Development Environment User’s Guide, enables you to select and map entities defined in JADE schemas to entities in a relational database.

A single JADE schema can have more than one mapping.

The wizard enables you to select the classes and many-to-many relationships to include and the tables to which they are mapped. Each RPS node uses a specified RPS mapping to populate one RDBMS database. As all mapping metadata becomes part of the system specification in the JADE database, you can extract, load, and version it.

The following table shows the entity mapping concepts.

JADE Concept or Entity	SQL Entity	Relational Concept
Class	Table	Relation
Instance	Row	Tuple
Object identifier (OID)	OID primary key column	OID primary key attribute
Attribute	Column	Attribute
Method	Column	Attribute
Reference	OID column	OID attribute