MDAC 2.5 SDK - OLE DB Programmer's Reference
Chapter 12: OLE DB Object Notifications

Chapter 12: OLE DB Object Notifications

Notifications permit consumers to be informed of changes to objects, such as data source objects and rowsets, when these objects are shared with other consumers. When significant changes occur to the state of a shared object, the provider notifies all consumers that currently share access to the object. Support for notifications is provider-specific.

This chapter explains when notifications are sent, as well as how to nest and group them. It also discusses ways for consumers to screen out notifications of unwanted events or phases. To illustrate ways of issuing notifications, diagrams of states and state transitions in providers and consumers are provided.