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 IOException;
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 }