content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org and other contributors.                    ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.core.lang.range;
  
  /**
   * 边界类型枚举
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  public enum BoundType {
  
      /**
       * 表示一个左闭区间，等同于{@code {x | x >= a}}
       */
      CLOSE_LOWER_BOUND("[", ">=", -2),
  
      /**
       * 表示一个左开区间，等同于{@code {x | x > a}}
       */
      OPEN_LOWER_BOUND("(", ">", -1),
  
      /**
       * 表示一个右开区间，等同于{@code {x | x < a}}
       */
      OPEN_UPPER_BOUND(")", "<", 1),
  
      /**
       * 表示一个右闭区间，等同于{@code {x | x <= a}}
       */
      CLOSE_UPPER_BOUND("]", "<=", 2);
  
      /**
       * 符号
       */
      private final String symbol;
  
      /**
       * 运算符
       */
      private final String operator;
  
      /**
       * 是否为开区间
       */
      private final int code;
  
      /**
       * 构造
       *
       * @param symbol   符号，如`[`或`(`等
       * @param operator 运算符，如`<`等
       * @param code     是否为开区间
       */
      BoundType(final String symbol, final String operator, final int code) {
          this.symbol = symbol;
          this.operator = operator;
          this.code = code;
      }
  
      /**
       * 获取符号
       *
       * @return 符号
       */
      public String getSymbol() {
          return symbol;
      }
  
      /**
       * 获取code
       *
       * @return code
       */
      public int getCode() {
          return code;
      }
  
      /**
       * 获取运算符
       *
       * @return 运算符
       */
      public String getOperator() {
          return operator;
      }
  
      /**
       * 该边界类型是否与当前边界错位，即一个的左边界，一个是右边界
       *
       * @param boundType 另一边界类型
       * @return 是否
       */
      public boolean isDislocated(final BoundType boundType) {
          return code * boundType.code < 0;
      }
  
      /**
       * 是下界
       *
       * @return 是否
       */
      public boolean isLowerBound() {
          return code < 0;
      }
  
      /**
       * 是上界
       *
       * @return 是否
       */
      public boolean isUpperBound() {
          return code > 0;
      }
  
      /**
       * 是闭区间
       *
       * @return 是否
       */
      public boolean isClose() {
          return (code & 1) == 0;
      }
  
      /**
       * 是开区间
       *
       * @return 是否
       */
      public boolean isOpen() {
          return (code & 1) == 1;
      }
  
      /**
       * 对边界类型取反
       *
       * @return 取反后的边界类型
       */
      public BoundType negate() {
          if (isLowerBound()) {
              return isOpen() ? CLOSE_UPPER_BOUND : OPEN_UPPER_BOUND;
          }
          return isOpen() ? CLOSE_LOWER_BOUND : OPEN_LOWER_BOUND;
      }
  
  }
  