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Oracle Workflow Administrator's Guide
Release 2.6.3.5
Part Number B12160-02
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Glossary |
Scheduling Propagation for Local Outbound Agents
To communicate events between different agents, you must schedule propagation for the outbound agents on your local system. The Business Event System requires propagation to be scheduled to send outbound event messages.
When you send an event message to an agent, the Event Manager places the message on the queue associated with the outbound agent. The message is then asynchronously delivered to the inbound agent by propagation.
You can schedule AQ propagation for agents that use the SQLNET protocol by the following methods:
- Use the Distributed Database Management feature to manage AQ through Oracle Enterprise Manager. See: Oracle Enterprise Manager Support, Oracle Application Developer's Guide - Advanced Queuing or Oracle Streams Advanced Queuing User's Guide and Reference, and Distributed Management, Oracle Enterprise Manager Administrator's Guide or the Oracle Enterprise Manager online help.
- Run the DBMS_AQADM.Schedule_Propagation API in SQL*Plus. See: DBMS_AQADM, PL/SQL Packages and Types Reference.
If you want to use the standard WF_OUT and WF_JMS_OUT agents or custom agents for event message propagation, ensure that you schedule propagation for those agents. You do not need to schedule propagation for the WF_CONTROL, WF_NOTIFICATION_OUT, or WF_WS_JMS_OUT agents, however. The middle tier processes that use WF_CONTROL dequeue messages directly from its queue, and notification mailers send messages placed on the WF_NOTIFICATION_OUT queue. For WF_WS_JMS_OUT, you can optionally start a Web services outbound component named Web Services OUT Agent, provided by Oracle Workflow.
For agents that use protocols other than the SQLNET protocol, you must provide external propagation logic. See: Agents, Oracle Workflow Developer's Guide.
You can use Oracle Workflow Manager to review the propagation schedules for your local outbound agents. You can also view the distribution of event messages on different agents, drill down to view details about individual event messages, and review queue details for the agents. Oracle Workflow Manager is available as a component of Oracle Applications Manager if you are using the version of Oracle Workflow embedded in Oracle Applications, or as a component of Oracle Enterprise Manager if you are using the standalone version of Oracle Workflow. For more information, please refer to the Oracle Applications Manager online help or the Oracle Enterprise Manager online help.
See Also
Agents, Oracle Workflow Developer's Guide
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