//                                                                           =========
    private static final UserDbm _instance = new UserDbm();

    private UserDbm() {
    }

    public static UserDbm getInstance() {
        return _instance;
    }

    // ===================================================================================

    public String asEsIndexType() {
        return "user";
    }

    @Override
    public String asEsSearchType() {
        return "user";
    }

    @Override
    public UserDbm asDBMeta() {
        return UserDbm.getInstance();
    }

    @Override
    protected <RESULT extends User> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {