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1
5 package org.h2.command.ddl;
6
7 import java.sql.SQLException  ;
8
9 import org.h2.engine.Database;
10 import org.h2.engine.DbObject;
11 import org.h2.engine.Right;
12 import org.h2.engine.Session;
13 import org.h2.table.Column;
14 import org.h2.table.Table;
15 import org.h2.util.ObjectArray;
16
17 public class AlterTableRenameColumn extends DefineCommand {
18
19 private Table table;
20 private Column column;
21 private String newName;
22
23 public AlterTableRenameColumn(Session session) {
24 super(session);
25 }
26
27 public void setTable(Table table) {
28 this.table = table;
29 }
30
31 public void setColumn(Column column) {
32 this.column = column;
33 }
34
35 public void setNewColumnName(String newName) {
36 this.newName = newName;
37 }
38
39 public int update() throws SQLException {
40 session.commit();
41 Database db = session.getDatabase();
42 session.getUser().checkRight(table, Right.ALL);
43 table.checkSupportAlter();
44 table.renameColumn(column, newName);
45 table.setModified();
46 db.update(session, table);
47 ObjectArray children = table.getChildren();
48 for(int i=0; i<children.size(); i++) {
49 DbObject child = (DbObject) children.get(i);
50 if(child.getCreateSQL() != null) {
51 db.update(session, child);
52 }
53 }
54 return 0;
55 }
56
57 }
58 |
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