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.omid.tso;
19
20 public interface LeaseManagement {
21
22 class LeaseManagementException extends Exception {
23
24 private static final long serialVersionUID = -2061376444591776881L;
25
26 LeaseManagementException(String msg) {
27 super(msg);
28 }
29
30
31 LeaseManagementException(String msg, Exception e) {
32 super(msg, e);
33 }
34
35 }
36
37 /**
38 * Allows to start the service implementing the lease management.
39 */
40 void startService() throws Exception;
41
42 /**
43 * Allows to stop the service implementing the lease management.
44 */
45 void stopService() throws Exception;
46
47 /**
48 * Check if the instance is still is under the lease period.
49 */
50 boolean stillInLeasePeriod();
51
52 }