The earliest moment to visitTree() on fully built Component Tree?

Question

Good morning, JSF experts!

Let me fugure out the problem I\'m trying to solve. The application has many forms. And elements in forms can be marked to require authorizati

Answer 1

That's the PostAddToViewEvent of the UIViewRoot itself. You can hook into it using a SystemEventListener implementation like below:

public class YourSystemEventListener implements SystemEventListener {

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

    @Override
    public void processEvent(SystemEvent event) throws AbortProcessingException {
        UIViewRoot view = (UIViewRoot) event.getSource();
        // ...
    }

}

Which is registered in <application> of faces-config.xml like below:

<system-event-listener>
    <system-event-listener-class>com.example.YourSystemEventListener</system-event-listener-class>
    <system-event-class>javax.faces.event.PostAddToViewEvent</system-event-class>
    <source-class>javax.faces.component.UIViewRoot</source-class>
</system-event-listener>