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ConfigurationPersistenceService.java
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ConfigurationPersistenceService.java
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/*
* 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
*
* @return a Set of 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);
}