/*
* Copyright 2004-2013 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.lealone.command.ddl;
import org.lealone.command.CommandInterface;
import org.lealone.dbobject.DbObject;
import org.lealone.dbobject.Right;
import org.lealone.dbobject.table.Column;
import org.lealone.dbobject.table.Table;
import org.lealone.engine.Database;
import org.lealone.engine.Session;
/**
* This class represents the statement
* ALTER TABLE ALTER COLUMN RENAME
*/
public class AlterTableRenameColumn extends DefineCommand {
private Table table;
private Column column;
private String newName;
public AlterTableRenameColumn(Session session) {
super(session);
}
public void setTable(Table table) {
this.table = table;
}
public void setColumn(Column column) {
this.column = column;
}
public void setNewColumnName(String newName) {
this.newName = newName;
}
public int update() {
session.commit(true);
Database db = session.getDatabase();
session.getUser().checkRight(table, Right.ALL);
table.checkSupportAlter();
table.renameColumn(column, newName);
table.setModified();
db.update(session, table);
for (DbObject child : table.getChildren()) {
if (child.getCreateSQL() != null) {
db.update(session, child);
}
}
return 0;
}
public int getType() {
return CommandInterface.ALTER_TABLE_ALTER_COLUMN_RENAME;
}
}