JSF annotation @ListenerFor doesn't work with GlassFish or Tomcat. No errors or warnings. It's just doesn't call method processEvent().
@ListenersFor({@ListenerFor(systemEventClass=PostConstructApplicationEvent.class),
public class MySystemEventListener implements SystemEventListener {
@Override
public void processEvent(SystemEvent event) throws AbortProcessingException {
if(event instanceof PostConstructApplicationEvent){
System.out.println("*********************************************");
System.out.println("processEvent Method is Called: PostConstructApplicationEvent");
System.out.println("*********************************************");
}
if(event instanceof PreDestroyApplicationEvent){
System.out.println("*********************************************");
System.out.println("processEvent Method is Called: PreDestroyApplicationEvent");
System.out.println("*********************************************");
}
}
@Override
public boolean isListenerForSource(Object o) {
return (o instanceof Application);
}
}
With the idea of?
As its javadoc tells you, the @ListenerFor is intented to be put on an UIComponent or Renderer implementation, not on a standalone SystemEventListener implementation. For the latter, you'd need to register it as <system-event-listener> in faces-config.xml.
E.g.
<application>
<system-event-listener>
<system-event-listener-class>com.example.MySystemEventListener</system-event-listener-class>
<system-event-class>javax.faces.event.PostConstructApplicationEvent</system-event-class>
<system-event-class>javax.faces.event.PreDestroyApplicationEvent</system-event-class>
<system-event-listener>
</application>
For the particular functional requirement, you might want to consider to use an eagerly initialized application scoped bean instead. This is somewhat easier and doesn't require some verbose XML:
@ManagedBean(eager=true)
@ApplicationScoped
public void App {
@PostConstruct
public void init() {
// ...
}
@PreDestroy
public void destroy() {
// ...
}
}