Listeners
The listener in the Adapter for MongoDB represents a change stream. When a MongoDB Adapter listener is created, a database or a collection change stream is also created.
When you enable the listener, it waits for a message from the change stream. When a message appears in the change stream, the listener then passes the message to a listener notification.
You must never invoke a listener directly from a service or client. Instead, use the Integration Server Administrator to configure, enable, and disable the services.
All listeners function in the following manner:
All listeners stop functioning when the package containing the listener node is disabled or when
Integration Server shuts down.
All listeners start functioning when the package containing the listener node is enabled or when
Integration Server restarts.