| /* |
| * 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.geode.distributed; |
| |
| import java.util.Set; |
| import java.util.function.UnaryOperator; |
| |
| import org.apache.geode.annotations.Experimental; |
| import org.apache.geode.cache.configuration.CacheConfig; |
| import org.apache.geode.management.configuration.AbstractConfiguration; |
| |
| @Experimental |
| public interface ConfigurationPersistenceService { |
| String CLUSTER_CONFIG = AbstractConfiguration.CLUSTER; |
| |
| /** |
| * retrieves all the group names in the cluster |
| */ |
| Set<String> getGroups(); |
| |
| /** |
| * retrieves the configuration object of a member group |
| * |
| * @param group the member group name, if null, then "cluster" is assumed |
| * @return the configuration object |
| */ |
| CacheConfig getCacheConfig(String group); |
| |
| CacheConfig getCacheConfig(String group, boolean createNew); |
| |
| /** |
| * update the cluster configuration of a member group |
| * |
| * @param group the member group name, if null, then "cluster" is assumed |
| * @param mutator the change you want to apply to the configuration. mutator returns null |
| * indicating that no update |
| * is done to the CacheConfig, or it returns the updated CacheConfig |
| */ |
| void updateCacheConfig(String group, UnaryOperator<CacheConfig> mutator); |
| } |