01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * -------------
28: * Values2D.java
29: * -------------
30: * (C) Copyright 2002-2005, by Object Refinery Limited.
31: *
32: * Original Author: David Gilbert (for Object Refinery Limited);
33: * Contributor(s): -;
34: *
35: * $Id: Values2D.java,v 1.3.2.1 2005/10/25 21:29:13 mungady Exp $
36: *
37: * Changes:
38: * --------
39: * 28-Oct-2002 : Version 1 (DG);
40: *
41: */
42:
43: package org.jfree.data;
44:
45: /**
46: * A general purpose interface that can be used to access a table of values.
47: */
48: public interface Values2D {
49:
50: /**
51: * Returns the number of rows in the table.
52: *
53: * @return The row count.
54: */
55: public int getRowCount();
56:
57: /**
58: * Returns the number of columns in the table.
59: *
60: * @return The column count.
61: */
62: public int getColumnCount();
63:
64: /**
65: * Returns a value from the table.
66: *
67: * @param row the row index (zero-based).
68: * @param column the column index (zero-based).
69: *
70: * @return The value (possibly <code>null</code>).
71: *
72: * @throws IndexOutOfBoundsException if the <code>row</code>
73: * or <code>column</code> is out of bounds.
74: */
75: public Number getValue(int row, int column);
76:
77: }
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