EDIT

import java.util.Stack;

import java.util.UUID;

import org.hibernate.Session;

import org.hibernate.Transaction;

import org.springframework.beans.factory.annotation.Autowired;

@ViewScope

public class RegistrationWorkingsetPresenter extends AbstractPresenter<RegistrationWorkingsetView> {

    private static final List<String> REGISTRATION_INIT_STRATEGY = Arrays.asList(

            "$",

            "blockedBy",

    private void saveRegistrationStatusChange(UUID uuid, Object value) {

        Registration reg = getRepo().getRegistrationService().load(uuid);

        } else {

            logger.error("Ivalid attempt to set RegistrationStatus to " + Objects.toString(value.toString(), "NULL"));

        }

    }