Listeners can be seen as hooks. They wait for a specific event and take a used-defined action if the event occurs.
Figure 24.1. Listeners
The event is specific to the particular listener
Graph Event Listeners |
Jobflow Event Listeners |
JMS Messages Listeners |
Universal Event Listeners |
File Event Listeners (remote and local) |
Task Failure Listeners |
The available actions taken by the listeners are common for all listeners. The action, that can be taken are: