content: /*
   * Copyright 2021-2022 Alibaba Group Holding Ltd.
   *
   *    Licensed under the Apache License, Version 2.0 (the "License");
   *    you may not use this file except in compliance with the License.
   *    You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   *    Unless required by applicable law or agreed to in writing, software
   *    distributed under the License is distributed on an "AS IS" BASIS,
   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *    See the License for the specific language governing permissions and
   *    limitations under the License.
   */
  
  package com.aliyun.fastmodel.core.tree.statement.select.order;
  
  /**
   * Desc:
   *
   * @author panguanjing
   * @date 2020/11/4
   */
  public enum NullOrdering {
      /**
       * first
       */
      FIRST,
      /**
       * last
       */
      LAST,
      /**
       * undefined
       */
      UNDEFINED;
  
      public static NullOrdering getByCode(String text) {
          NullOrdering[] nullOrderings = NullOrdering.values();
          for (NullOrdering nullOrdering : nullOrderings) {
              if (nullOrdering.name().equalsIgnoreCase(text)) {
                  return nullOrdering;
              }
          }
          throw new IllegalArgumentException("can't find the ordering with code:" + text);
      }
  }
  