Classes RWDBDatabaseCallback and RWDBDatabaseCallbackImp allow you to execute your code at particular callback locations while allocating and deallocating database-specific environment handles. With use of database callbacks, you can customize the database environment handles to your needs.

Classes RWDBConnCallback and RWDBConnCallbackImp allow users to execute their code at particular callback locations while allocating, deallocating, connecting and disconnecting database specific connection handles. With use of connection callbacks, you can customize the database connection handles to your needs.

Most callback classes are explained in Chapter 10, Database and Connection Callbacks. Detailed information for each class is in the SourcePro API Reference Guide.