JavaFX controller implementing IdentifiableController

ListBuilderController.java

import javafx.fxml.FXML;
import javafx.scene.Parent;


@FXMLLoadingScoped
public class ListBuilderController<T> implements IdentifiableController {
    
    @FXML
    private Parent root;
    
    @Override
    public String getId() {
        return getParentId(root);
    }
    
    private String getParentId(Parent parent) {
        if(parent.getId() != null && !"Content".equals(parent.getId())) {
            return parent.getId();
        }
        else {
            return getParentId(parent.getParent());
        }
    }
}