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.metadata.persist.service.database;
19
20 import org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereSchema;
21 import org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereTable;
22 import org.apache.shardingsphere.infra.metadata.database.schema.model.ShardingSphereView;
23 import org.apache.shardingsphere.metadata.persist.service.schema.SchemaMetaDataPersistService;
24
25 import java.util.Collection;
26 import java.util.Map;
27
28 /**
29 * Database meta data based registry service.
30 */
31 public interface DatabaseMetaDataBasedPersistService {
32
33 /**
34 * Add database name.
35 *
36 * @param databaseName database name
37 */
38 void addDatabase(String databaseName);
39
40 /**
41 * Drop database.
42 *
43 * @param databaseName database name to be deleted
44 */
45 void dropDatabase(String databaseName);
46
47 /**
48 * Load all database names.
49 *
50 * @return all database names
51 */
52 Collection<String> loadAllDatabaseNames();
53
54 /**
55 * Add schema.
56 *
57 * @param databaseName database name
58 * @param schemaName schema name
59 */
60 void addSchema(String databaseName, String schemaName);
61
62 /**
63 * Drop schema.
64 *
65 * @param databaseName database name
66 * @param schemaName schema name
67 */
68 void dropSchema(String databaseName, String schemaName);
69
70 /**
71 * Compare and persist schema meta data.
72 *
73 * @param databaseName database name
74 * @param schemaName schema name
75 * @param schema schema meta data
76 */
77 void compareAndPersist(String databaseName, String schemaName, ShardingSphereSchema schema);
78
79 /**
80 * Persist schema meta data by alter configuration.
81 *
82 * @param databaseName database name
83 * @param schemaName schema name
84 * @param schema schema meta data
85 */
86 void persistByAlterConfiguration(String databaseName, String schemaName, ShardingSphereSchema schema);
87
88 /**
89 * Persist schema meta data by drop configuration.
90 *
91 * @param databaseName database name
92 * @param schemaName schema name
93 * @param schema schema meta data
94 */
95 void persistByDropConfiguration(String databaseName, String schemaName, ShardingSphereSchema schema);
96
97 /**
98 * Delete schema meta data.
99 *
100 * @param databaseName database name
101 * @param schemaName schema name
102 * @param schema schema meta data
103 */
104 void delete(String databaseName, String schemaName, ShardingSphereSchema schema);
105
106 /**
107 * Load schema meta data.
108 *
109 * @param databaseName database name
110 * @return schema meta data
111 */
112 Map<String, ShardingSphereSchema> loadSchemas(String databaseName);
113
114 /**
115 * Get table meta data persist service.
116 *
117 * @return persist service
118 */
119 SchemaMetaDataPersistService<Map<String, ShardingSphereTable>> getTableMetaDataPersistService();
120
121 /**
122 * Get view meta data persist service.
123 *
124 * @return persist service
125 */
126 SchemaMetaDataPersistService<Map<String, ShardingSphereView>> getViewMetaDataPersistService();
127 }