1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.hbase.procedure; 19 20 import java.io.IOException; 21 22 import org.apache.hadoop.hbase.classification.InterfaceAudience; 23 import org.apache.hadoop.hbase.classification.InterfaceStability; 24 import org.apache.hadoop.hbase.regionserver.RegionServerServices; 25 import org.apache.zookeeper.KeeperException; 26 27 /** 28 * A life-cycle management interface for globally barriered procedures on 29 * region servers. 30 */ 31 @InterfaceAudience.Private 32 @InterfaceStability.Evolving 33 public abstract class RegionServerProcedureManager extends ProcedureManager { 34 /** 35 * Initialize a globally barriered procedure for region servers. 36 * 37 * @param rss Region Server service interface 38 * @throws KeeperException 39 */ 40 public abstract void initialize(RegionServerServices rss) throws KeeperException; 41 42 /** 43 * Start accepting procedure requests. 44 */ 45 public abstract void start(); 46 47 /** 48 * Close <tt>this</tt> and all running procedure tasks 49 * 50 * @param force forcefully stop all running tasks 51 * @throws IOException 52 */ 53 public abstract void stop(boolean force) throws IOException; 54 }