This section describes the various alert services and alert events that are provided with the PAF and the Portal module’s Baseline Gears.
- A pre-configured gear topic destination to which all gears’ messages are published. The destination is JMS-compliant and can be looked up by gears via the Java Naming & Directory Interface (JNDI). 
- A global Nucleus component named - AlertMgrthat provides an API to register message types with their- ResourceBundle, persist alerts, and generate alerts in a locale-sensitive manner. This component can be looked up via JNDI.
- The - AlertRepositorythat holds alerts targeted to communities, organizations, roles, and individuals.
- An Alerts gear that is configurable to display alerts to a Web page. 
- A configurable - AlertRepositoryAdmincomponent responsible for removing expired alerts from the- AlertRepository.

