001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.procedure;
019
020import java.io.IOException;
021
022import org.apache.yetus.audience.InterfaceAudience;
023import org.apache.yetus.audience.InterfaceStability;
024import org.apache.hadoop.hbase.regionserver.RegionServerServices;
025import org.apache.zookeeper.KeeperException;
026
027/**
028 * A life-cycle management interface for globally barriered procedures on
029 * region servers.
030 */
031@InterfaceAudience.Private
032@InterfaceStability.Evolving
033public abstract class RegionServerProcedureManager extends ProcedureManager {
034  /**
035   * Initialize a globally barriered procedure for region servers.
036   *
037   * @param rss Region Server service interface
038   * @throws KeeperException
039   */
040  public abstract void initialize(RegionServerServices rss) throws KeeperException;
041
042  /**
043   * Start accepting procedure requests.
044   */
045  public abstract void start();
046
047  /**
048   * Close <tt>this</tt> and all running procedure tasks
049   *
050   * @param force forcefully stop all running tasks
051   * @throws IOException
052   */
053  public abstract void stop(boolean force) throws IOException;
054}