1 | /* |
2 | * Copyright 2004-2014 H2 Group. Multiple-Licensed under the MPL 2.0, |
3 | * and the EPL 1.0 (http://h2database.com/html/license.html). |
4 | * Initial Developer: H2 Group |
5 | */ |
6 | package org.h2.command.ddl; |
7 | |
8 | import org.h2.api.ErrorCode; |
9 | import org.h2.command.CommandInterface; |
10 | import org.h2.engine.Database; |
11 | import org.h2.engine.Session; |
12 | import org.h2.message.DbException; |
13 | import org.h2.schema.Schema; |
14 | import org.h2.schema.SchemaObject; |
15 | |
16 | import java.util.ArrayList; |
17 | |
18 | /** |
19 | * This class represents the statement |
20 | * ALTER SCHEMA RENAME |
21 | */ |
22 | public class AlterSchemaRename extends DefineCommand { |
23 | |
24 | private Schema oldSchema; |
25 | private String newSchemaName; |
26 | |
27 | public AlterSchemaRename(Session session) { |
28 | super(session); |
29 | } |
30 | |
31 | public void setOldSchema(Schema schema) { |
32 | oldSchema = schema; |
33 | } |
34 | |
35 | public void setNewName(String name) { |
36 | newSchemaName = name; |
37 | } |
38 | |
39 | @Override |
40 | public int update() { |
41 | session.commit(true); |
42 | Database db = session.getDatabase(); |
43 | if (!oldSchema.canDrop()) { |
44 | throw DbException.get(ErrorCode.SCHEMA_CAN_NOT_BE_DROPPED_1, |
45 | oldSchema.getName()); |
46 | } |
47 | if (db.findSchema(newSchemaName) != null || |
48 | newSchemaName.equals(oldSchema.getName())) { |
49 | throw DbException.get(ErrorCode.SCHEMA_ALREADY_EXISTS_1, |
50 | newSchemaName); |
51 | } |
52 | session.getUser().checkSchemaAdmin(); |
53 | db.renameDatabaseObject(session, oldSchema, newSchemaName); |
54 | ArrayList<SchemaObject> all = db.getAllSchemaObjects(); |
55 | for (SchemaObject schemaObject : all) { |
56 | db.updateMeta(session, schemaObject); |
57 | } |
58 | return 0; |
59 | } |
60 | |
61 | @Override |
62 | public int getType() { |
63 | return CommandInterface.ALTER_SCHEMA_RENAME; |
64 | } |
65 | |
66 | } |