/**
 * 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.yarn.server.resourcemanager.monitor;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;

public interface SchedulingEditPolicy {

  void init(Configuration config, RMContext context,
      ResourceScheduler scheduler);

  /**
   * This method is invoked at regular intervals. Internally the policy is
   * allowed to track containers and affect the scheduler. The "actions"
   * performed are passed back through an EventHandler.
   */
  void editSchedule();

  long getMonitoringInterval();

  String getPolicyName();

}