content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * 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 me.ahoo.cosid.accessor;
  
  import me.ahoo.cosid.provider.IdGeneratorProvider;
  
  import java.lang.reflect.Field;
  
  /**
   * ID Definition.
   *
   * @author ahoo wang
   */
  public class IdDefinition {
      
      public static final IdDefinition NOT_FOUND = new IdDefinition(NotFoundIdDefinition.NAME, NotFoundIdDefinition.ID_FIELD, long.class);
      
      private final String generatorName;
      private final Field idField;
      private final Class<?> idType;
      
      public IdDefinition(Field idField) {
          this(IdGeneratorProvider.SHARE, idField);
      }
      
      public IdDefinition(String generatorName, Field idField) {
          this(generatorName, idField, idField.getType());
      }
      
      public IdDefinition(String generatorName, Field idField, Class<?> idType) {
          this.generatorName = generatorName;
          this.idField = idField;
          this.idType = idType;
      }
      
      public String getGeneratorName() {
          return generatorName;
      }
      
      public Field getIdField() {
          return idField;
      }
      
      public Class<?> getIdType() {
          return idType;
      }
      
      private static class NotFoundIdDefinition {
          static final String NAME = "NOT_FOUND";
          static final Field ID_FIELD;
          
          static {
              try {
                  ID_FIELD = NotFoundIdDefinition.class.getDeclaredField("id");
              } catch (NoSuchFieldException e) {
                  throw new RuntimeException(e);
              }
          }
          
          private final long id = 0L;
      }
  }
  