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.mapper.binding.basic;
  
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.miaixz.bus.mapper.builder.GenericTypeResolver;
  import org.miaixz.bus.mapper.parsing.MapperFactory;
  import org.miaixz.bus.mapper.parsing.TableMeta;
  
  /**
   * 实体类信息接口，实现此接口可便捷获取当前接口对应的实体类类型 {@link Class} 和实体表信息 {@link TableMeta}
   *
   * @param <T> 实体类泛型
   * @author Kimi Liu
   * @since Java 17+
   */
  public interface ClassMapper<T> {
  
      /**
       * 获取当前接口对应的实体类类型
       *
       * @return 实体类类型
       */
      default Class<T> entityClass() {
          return (Class<T>) CachingEntityClass.getEntityClass(getClass());
      }
  
      /**
       * 获取当前接口对应的实体表信息
       *
       * @return 实体表信息
       */
      default TableMeta entityTable() {
          return MapperFactory.create(entityClass());
      }
  
      /**
       * 缓存实体类类型的工具类
       */
      class CachingEntityClass {
  
          /**
           * 存储接口与实体类类型的映射
           */
          static Map<Class<?>, Class<?>> entityClassMap = new ConcurrentHashMap<>();
  
          /**
           * 获取接口对应的实体类类型
           *
           * @param clazz 继承的子接口
           * @return 实体类类型
           */
          private static Class<?> getEntityClass(Class<?> clazz) {
              if (!entityClassMap.containsKey(clazz)) {
                  entityClassMap.put(
                          clazz,
                          GenericTypeResolver.resolveTypeToClass(
                                  GenericTypeResolver.resolveType(
                                          ClassMapper.class.getTypeParameters()[0],
                                          clazz,
                                          ClassMapper.class)));
              }
              return entityClassMap.get(clazz);
          }
      }
  
  }
  