/**
*
* 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.hadoop.hbase.conf;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
/**
* This extension to ConfigurationObserver allows the configuration to propagate to the children of
* the current {@link ConfigurationObserver}. This is the preferred way to make a class online
* configurable because it allows the user to configure the children in a recursive manner
* automatically.
*/
@InterfaceAudience.Private
public interface PropagatingConfigurationObserver extends ConfigurationObserver {
/**
* Needs to be called to register the children to the manager.
* @param manager : to register to
*/
void registerChildren(ConfigurationManager manager);
/**
* Needs to be called to deregister the children from the manager.
* @param manager : to deregister from
*/
void deregisterChildren(ConfigurationManager manager);
}