![]() |
![]() |
|
|
How to Select a Notification Method
The EventBroker supports a variety of methods for notifying subscribers of events, as shown in the following diagram.
Notification Methods Supported by the EventBroker
Whichever notification method you choose, the procedure for implementing it is the same: in your call to tpsubscribe(), specify an argument that refers to a structure of type TPEVCTL. If the value of the argument is NULL, the EventBroker sends an unsolicited message to the subscriber. Two of these methods, having the notification sent to a service and having it sent to a queue in stable storage, cannot be requested directly by a client. Instead, a client must invoke a service routine to subscribe on its behalf. For each subscription, you can select any of the following notification methods. The EventBroker can:
![]() |
![]() |
![]() |
|
Copyright © 2001 BEA Systems, Inc. All rights reserved.
|