How to get Current saved ID when using SEQUENCE based custom ID generator?

Question

When using this sequence based custom ID generator in hibernate, how to get current saved ID value when doing a transaction?

Here is my custom IdGenerator

IdGenerator.java

public class IdGenerator extends SequenceStyleGenerator {

    public static final String VALUE_PREFIX_PARAMETER = "valuePrefix";
    public static final String VALUE_PREFIX_DEFAULT = "";
    private String valuePrefix;

    public static final String NUMBER_FORMAT_PARAMETER = "numberFormat";
    public static final String NUMBER_FORMAT_DEFAULT = "%d";
    private String numberFormat;

    @Override
    public Serializable generate(SharedSessionContractImplementor session,
                                 Object object) throws HibernateException {
        return valuePrefix + String.format(numberFormat, super.generate(session, object));
    }

    @Override
    public void configure(Type type, Properties params,
                          ServiceRegistry serviceRegistry) throws MappingException {
        super.configure(LongType.INSTANCE, params, serviceRegistry);
        valuePrefix = ConfigurationHelper.getString(VALUE_PREFIX_PARAMETER,
                params, VALUE_PREFIX_DEFAULT);
        numberFormat = ConfigurationHelper.getString(NUMBER_FORMAT_PARAMETER,
                params, NUMBER_FORMAT_DEFAULT);
    }
}

Here is my Transaction

Supplier_Order_Detail.java

     @Autowired
        private SupplierOrderRepo supplierOrderRepo;
    
        @Autowired
        private SupplierOrderDetailRepo supplierOrderDetailRepo;
    
        @Autowired
        private ProductDetailRepo productDetailRepo;
        @Autowired
        private SupplierRepo supplierRepo;
    
        @Override
        @Transactional
        public Map<String, Boolean> placeSupplierOrder(PlaceSupplierOrderDTO placeSupplierOrderDTO) {
    
            Map<String, Boolean> map = new HashMap<>();
            SupplierOrder supplierOrder = new SupplierOrder();
    
         supplierOrder.setSupplier(supplierRepo.getOne(placeSupplierOrderDTO.getSupplierID()));
                supplierOrder.setSupplierOrderID(placeSupplierOrderDTO.getSupplierOrderID());
                Date currentDate = new Date();
                supplierOrder.setAddTime(currentDate);
                supplierOrder.setSupplierOrderDate(currentDate);
                supplierOrderRepo.save(supplierOrder);
        
    for (ProductOrderDTO productOrder : placeSupplierOrderDTO.getProductList()) {
            SupplierOrderDetails supplierOrderDetails = new SupplierOrderDetails();
    
            supplierOrderDetails.setProductDetails(productDetailRepo.getOne(productOrder.getBatchID()));
            supplierOrderDetails.setSupplierOrder(supplierOrderRepo.getOne("SO000001")); 
            supplierOrderDetails.setOrderedQty(productOrder.getOrderedQty());
            supplierOrderDetailRepo.save(supplierOrderDetails);
        }
        map.put("placesupplierordered", Boolean.TRUE);
        return map;
}