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Java > Open Source Codes > org > riotfamily > revolt > dialect > Postgresql8Dialect


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2007
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * flx
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.revolt.dialect;
25
26 import org.riotfamily.revolt.Script;
27 import org.riotfamily.revolt.definition.Column;
28
29 /**
30  * Dialect for PostgreSQL >= 8.0 that supports changing the type of a column.
31  *
32  * @author Felix Gnass [fgnass at neteye dot de]
33  * @since 6.4
34  */
35 public class Postgresql8Dialect extends PostgresqlDialect {
36
37     public boolean supports(String JavaDoc databaseProductName,
38             int majorVersion, int minorVersion) {
39
40         return "PostgreSQL".equals(databaseProductName) && majorVersion >= 8;
41     }
42     
43     protected Script modifyColumnType(String JavaDoc table, Column column) {
44         Script sql = new Script();
45         addAlterColumn(sql, table, column);
46         sql.append("TYPE").append(getColumnType(column));
47         return sql;
48     }
49 }
50
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