kafka Revertable 源码
kafka Revertable 代码
文件路径：/metadata/src/main/java/org/apache/kafka/timeline/Revertable.java
/*
* 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();
}
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