How to use

withProperty

method

in

org.springframework.data.domain.Sort$Order

/**
 * Translates {@link Sort} orders from Jackson-mapped field names to {@link PersistentProperty} names. Properties
 * that cannot be resolved are dropped.
 *
 * @param input must not be {@literal null}.
 * @param rootEntity must not be {@literal null}.
 * @return {@link Sort} with translated field names or {@literal null} if translation dropped all sort fields.
 */
public Sort translateSort(Sort input, PersistentEntity<?, ?> rootEntity) {
  Assert.notNull(input, "Sort must not be null!");
  Assert.notNull(rootEntity, "PersistentEntity must not be null!");
  List<Order> filteredOrders = new ArrayList<Order>();
  for (Order order : input) {
    List<String> iteratorSource = new ArrayList<String>();
    Matcher matcher = SPLITTER.matcher("_" + order.getProperty());
    while (matcher.find()) {
      iteratorSource.add(matcher.group(1));
    }
    String mappedPropertyPath = getMappedPropertyPath(rootEntity, iteratorSource);
    if (mappedPropertyPath != null) {
      filteredOrders.add(order.withProperty(mappedPropertyPath));
    }
  }
  return filteredOrders.isEmpty() ? Sort.unsorted() : Sort.by(filteredOrders);
}

/**
 * Translates {@link Sort} orders from Jackson-mapped field names to {@link PersistentProperty} names. Properties
 * that cannot be resolved are dropped.
 *
 * @param input must not be {@literal null}.
 * @param rootEntity must not be {@literal null}.
 * @return {@link Sort} with translated field names or {@literal null} if translation dropped all sort fields.
 */
public Sort translateSort(Sort input, PersistentEntity<?, ?> rootEntity) {
  Assert.notNull(input, "Sort must not be null!");
  Assert.notNull(rootEntity, "PersistentEntity must not be null!");
  List<Order> filteredOrders = new ArrayList<Order>();
  for (Order order : input) {
    List<String> iteratorSource = new ArrayList<String>();
    Matcher matcher = SPLITTER.matcher("_" + order.getProperty());
    while (matcher.find()) {
      iteratorSource.add(matcher.group(1));
    }
    String mappedPropertyPath = getMappedPropertyPath(rootEntity, iteratorSource);
    if (mappedPropertyPath != null) {
      filteredOrders.add(order.withProperty(mappedPropertyPath));
    }
  }
  return filteredOrders.isEmpty() ? Sort.unsorted() : Sort.by(filteredOrders);
}