JSF initialize application-scope bean when context initialized

Question

I\'m building a JSF+Facelets web app, one piece of which is a method that scans a directory every so often and indexes any changes. This method is part of a bean which is i

Answer 1

In JSF 2+ you can use a SystemEventListener to handle it. You would set it to take action on the PostConstructApplicationEvent to initialize it.

    
     listeners.SystemEventListenerImpl
    
    
     javax.faces.event.PostConstructApplicationEvent
                           

The implementation would look something like :

public class SystemEventListenerImpl implements SystemEventListener {

  @Override
  public void processEvent(SystemEvent event) throws AbortProcessingException {
    Application application = (Application) event.getSource();
   //TODO
  }

  @Override
  public boolean isListenerForSource(Object source) {
    return (source instanceof Application);
  }
}

This will allow you to do a lot more than just simply passing a value.