content: /*
   * Copyright 1999-2023 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.alibaba.nacos.core.controller.compatibility;
  
  import com.alibaba.nacos.plugin.auth.constant.ApiType;
  
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  
  /**
   * Nacos old API compatibility annotation.
   * <p>
   *     Marked old API will be deprecated in future version, but for some users need time to refactor and move to new API.
   *     In this situation, change the configuration in {@link ApiCompatibilityConfig} to open the old API usage.
   * </p>
   *
   * @author xiweng.yy
   */
  @Retention(RetentionPolicy.RUNTIME)
  public @interface Compatibility {
      
      /**
       * The type of API. Distinguishing {@link ApiType}.
       *
       * @return the type of the API
       */
      ApiType apiType() default ApiType.OPEN_API;
      
      /**
       * APIs can replace this deprecated API.
       *
       * @return API list.
       */
      String alternatives() default "";
  }
  