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
19 package org.apache.hadoop.hbase.procedure2.store;
20
21 import java.io.IOException;
22
23 import org.apache.hadoop.hbase.procedure2.Procedure;
24
25 /**
26 * An In-Memory store that does not keep track of the procedures inserted.
27 */
28 public class NoopProcedureStore extends ProcedureStoreBase {
29 private int numThreads;
30
31 @Override
32 public void start(int numThreads) throws IOException {
33 if (!setRunning(true)) {
34 return;
35 }
36 this.numThreads = numThreads;
37 }
38
39 @Override
40 public void stop(boolean abort) {
41 setRunning(false);
42 }
43
44 @Override
45 public void recoverLease() throws IOException {
46 // no-op
47 }
48
49 @Override
50 public int getNumThreads() {
51 return numThreads;
52 }
53
54 @Override
55 public void load(final ProcedureLoader loader) throws IOException {
56 loader.setMaxProcId(0);
57 }
58
59 @Override
60 public void insert(Procedure proc, Procedure[] subprocs) {
61 // no-op
62 }
63
64 @Override
65 public void update(Procedure proc) {
66 // no-op
67 }
68
69 @Override
70 public void delete(long procId) {
71 // no-op
72 }
73 }