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What are Workflow Listeners

Listeners are the Service Components with in Oracle Workflow.

Following are the types:

Oracle Workflow provides the following seeded PL/SQL agent listeners:

Within Oracle E-Business Suite, Oracle Workflow provides the following seeded Java agent listeners:

SOMETIMES LISTENERS MIGHT BE DOWN AND OUR WORKFLOW MIGHT NOT RUN. HOW TO IDENTIFY THIS AND MAKE THEN COME UP?

You should configure agent listeners to run by default in Oracle Applications even if you do not use Oracle Workflow.

Other modules such as Oracle Application Object Library and the directory service use the Business Event System for internal processing and enqueue messages on the WF_DEFERRED and WF_JAVA_DEFERRED agents.

You should run the Workflow Deferred Agent Listener and the Workflow Java Deferred Agent Listener to process these events and prevent the queues from growing too large causing performance issues. System Administrators need to ensure that these listeners are always running. Use the following navigation to check the status and start if they are down:

Oracle Applications Manager -> Workflow Manager -> Agent Listeners