1 /*
2 StatCvs - CVS statistics generation
3 Copyright (C) 2002 Lukasz Pekacki <lukasz@pekacki.de>
4 http://statcvs.sf.net/
5
6 This library 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 2.1 of the License, or (at your option) any later version.
10
11 This library 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 $RCSfile: Column.java,v $
21 $Date: 2008/04/02 11:22:14 $
22 */
23 package net.sf.statcvs.reportmodel;
24
25 import net.sf.statcvs.renderer.TableCellRenderer;
26
27 /**
28 * An abstract base class for table columns. Concrete Sublasses implement
29 * different behaviour for different data types.
30 *
31 * @author Richard Cyganiak <rcyg@gmx.de>
32 * @version $Id: Column.java,v 1.4 2008/04/02 11:22:14 benoitx Exp $
33 */
34 public abstract class Column {
35
36 /**
37 * Return number of rows that have been added to this column
38 * @return number of rows that have been added to this column
39 */
40 public abstract int getRows();
41
42 /**
43 * Renders the head of the column into a <tt>TableCellRenderer</tt> by
44 * calling one of its
45 * {@link net.sf.statcvs.renderer.TableCellRenderer#renderCell} methods
46 * @param renderer the TableCellRenderer to use
47 * TODO: this is probably unnecessary; better add a getTitle method
48 */
49 public abstract void renderHead(TableCellRenderer renderer);
50
51 /**
52 * Renders a row of the column into a <tt>TableCellRenderer</tt> by
53 * calling one of its
54 * {@link net.sf.statcvs.renderer.TableCellRenderer#renderCell} methods
55 * @param rowIndex the row number, starting at 0
56 * @param renderer the TableCellRenderer to use
57 */
58 public abstract void renderCell(int rowIndex, TableCellRenderer renderer);
59
60 /**
61 * Renders the footer of the column into a <tt>TableCellRenderer</tt> by
62 * calling one of its
63 * {@link net.sf.statcvs.renderer.TableCellRenderer#renderCell}
64 * methods. The footer usually contains some kind of total for the column.
65 * @param renderer the TableCellRenderer to use
66 */
67 public abstract void renderTotal(TableCellRenderer renderer);
68 }