content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.kafka.timeline;
  
  /**
   * An API which all snapshot data structures implement, indicating that their contents
   * can be reverted to a point in time.
   */
  interface Revertable {
      /**
       * Revert to the target epoch.
       *
       * @param targetEpoch   The epoch to revert to.
       * @param delta         The delta associated with this epoch for this object.
       */
      void executeRevert(long targetEpoch, Delta delta);
  
      /**
       * Reverts to the initial value.
       */
      void reset();
  }
  