| /* |
| * 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.shardingsphere.elasticjob.cloud.reg.base; |
| |
| /** |
| * 选举候选人. |
| * 保证{@link #startLeadership()}与{@link #stopLeadership()}方法在同一个线程内交替运行, |
| * 且不会出现并发执行的情况. |
| * |
| * @author gaohongtao |
| */ |
| public interface ElectionCandidate { |
| |
| /** |
| * 开始领导状态. |
| * @throws Exception 抛出的异常 |
| */ |
| void startLeadership() throws Exception; |
| |
| /** |
| * 终止领导状态. |
| * 实现该方法时不应该抛出任何异常 |
| */ |
| void stopLeadership(); |
| } |
