Chapter 12: OLE DB Object Notifications

OLE DB Programmer's Reference

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 and how to nest and group them. It also discusses ways for consumers to screen out unwanted notifications. To illustrate ways of issuing notifications, diagrams of states and state transitions in providers and consumers are provided.

For more information on Go to
When notifications are sent "When Notifications Are Sent," in this chapter
Nested notifications "When Notifications Are Sent," in this chapter
Grouped notifications "When Notifications Are Sent," in this chapter
States and state transitions in providers "States and State Transitions in Providers," in this chapter
States and state transitions in consumers "States and State Transitions in Consumers," in this chapter
Threading and notifications "Threading and Notifications," in Chapter 18: Programming Considerations

1998-2001 Microsoft Corporation. All rights reserved.



Microsoft Ole Db 2.0 Programmer's Reference and Data Access SDK
Microsoft OLE DB 2.0 Programmers Reference and Data Access SDK (Microsoft Professional Editions)
ISBN: 0735605904
EAN: 2147483647
Year: 1998
Pages: 1083

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net