/**
* 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.hive.llap.registry;
/**
* Callback listener for instance state change events
*/
public interface ServiceInstanceStateChangeListener {
/**
* Called when new {@link ServiceInstance} is created.
*
* @param serviceInstance - created service instance
*/
void onCreate(ServiceInstance serviceInstance);
/**
* Called when an existing {@link ServiceInstance} is updated.
*
* @param serviceInstance - updated service instance
*/
void onUpdate(ServiceInstance serviceInstance);
/**
* Called when an existing {@link ServiceInstance} is removed.
*
* @param serviceInstance - removed service instance
*/
void onRemove(ServiceInstance serviceInstance);
}