| /* |
| * 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; |
| |
| import java.util.List; |
| |
| /** |
| * 用于协调分布式服务的注册中心. |
| * |
| * @author zhangliang |
| */ |
| public interface CoordinatorRegistryCenter extends RegistryCenter { |
| |
| /** |
| * 直接从注册中心而非本地缓存获取数据. |
| * |
| * @param key 键 |
| * @return 值 |
| */ |
| String getDirectly(String key); |
| |
| /** |
| * 获取子节点名称集合. |
| * |
| * @param key 键 |
| * @return 子节点名称集合 |
| */ |
| List<String> getChildrenKeys(String key); |
| |
| /** |
| * 获取子节点数量. |
| * |
| * @param key 键 |
| * @return 子节点数量 |
| */ |
| int getNumChildren(String key); |
| |
| /** |
| * 持久化临时注册数据. |
| * |
| * @param key 键 |
| * @param value 值 |
| */ |
| void persistEphemeral(String key, String value); |
| |
| /** |
| * 持久化顺序注册数据. |
| * |
| * @param key 键 |
| * @param value 值 |
| * @return 包含10位顺序数字的znode名称 |
| */ |
| String persistSequential(String key, String value); |
| |
| /** |
| * 持久化临时顺序注册数据. |
| * |
| * @param key 键 |
| */ |
| void persistEphemeralSequential(String key); |
| |
| /** |
| * 添加本地缓存. |
| * |
| * @param cachePath 需加入缓存的路径 |
| */ |
| void addCacheData(String cachePath); |
| |
| /** |
| * 释放本地缓存. |
| * |
| * @param cachePath 需释放缓存的路径 |
| */ |
| void evictCacheData(String cachePath); |
| |
| /** |
| * 获取注册中心数据缓存对象. |
| * |
| * @param cachePath 缓存的节点路径 |
| * @return 注册中心数据缓存对象 |
| */ |
| Object getRawCache(String cachePath); |
| } |