Dynamic component activation method using a relational database as the repository for registration information

摘要

A method for allowing dynamic component activation using a database as a repository for registration information is disclosed. This method uses a Component Activation Manager (CAM), which is a singleton object that maps unique component ID's to a Factory Creation Function (FCF). A purpose of the FCF is to create and register factories for the objects contained in a dynamic library. The factories created with the FCF are also registered with a database connection created by the CAM. Using this approach, the application only needs to create the CAM object, request a connection and then request a factory for the objects it needs. The CAM and the database connection find the dynamic library and the associated object factories through the use of database tables that contain a map of unique component ID's and object FCF addresses.