1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.shardingsphere.mode.repository.cluster;
19
20 import org.apache.shardingsphere.mode.repository.cluster.listener.DataChangedEventListener;
21 import org.apache.shardingsphere.mode.repository.cluster.lock.holder.DistributedLockHolder;
22 import org.apache.shardingsphere.mode.spi.PersistRepository;
23
24 /**
25 * Cluster persist repository.
26 */
27 public interface ClusterPersistRepository extends PersistRepository {
28
29 /**
30 * Initialize registry center.
31 *
32 * @param config cluster persist repository configuration
33 */
34 void init(ClusterPersistRepositoryConfiguration config);
35
36 /**
37 * Persist ephemeral data.
38 *
39 * @param key key of data
40 * @param value value of data
41 */
42 void persistEphemeral(String key, String value);
43
44 /**
45 * Persist exclusive ephemeral data.
46 *
47 * @param key key of data
48 * @param value is persisted or not
49 */
50 void persistExclusiveEphemeral(String key, String value);
51
52 /**
53 * Get distributed lock holder.
54 *
55 * @return distributed lock holder
56 */
57 DistributedLockHolder getDistributedLockHolder();
58
59 /**
60 * Watch key or path of governance server.
61 *
62 * @param key key of data
63 * @param listener data changed event listener
64 */
65 void watch(String key, DataChangedEventListener listener);
66 }