FirstColumnProjector.java

biz/hammurapi/sql/FirstColumnProjector.java

Violations

Inspector Message Severity Location
Java Inspector 048 Copyrights information should be present in each file. 1
Java Inspector 089 Undocumented constructor 2 39:9
Java Inspector 089 Undocumented constructor 2 43:9
Java Inspector 089 Undocumented method 2 47:9
Java Inspector 051 It is good practice to call in any case super() in a constructor. 3 39:9
Java Inspector 051 It is good practice to call in any case super() in a constructor. 3 43:9

Source code

1/*
2  * hgcommons 9
3 * Hammurapi Group Common Library
4 * Copyright (C) 2003  Hammurapi Group
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 *
20 * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
21 * e-Mail: support@hammurapi.biz
22 */
23package biz.hammurapi.sql;
24
25import java.sql.ResultSet;
26import java.sql.SQLException;
27
28import biz.hammurapi.convert.ConvertingService;
29
30/**
31 * Projects first column by invoking ResultSet.getObject(1)
32 * @author Pavel Vlasov
33 * @version $Revision: 1.3 $
34 */
35public class FirstColumnProjector implements Projector {
36	
37	private Class targetClass;
38
39	public FirstColumnProjector() {
40		// Default constructor

41	}
42	
43	public FirstColumnProjector(Class targetClass) {
44		this.targetClass=targetClass;
45	}
46
47	public Object project(ResultSet rs) throws SQLException {		
48		return targetClass==null ? rs.getObject(1) : ConvertingService.convert(rs.getObject(1), targetClass);
49	}
50}
51