01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2007, 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: * IntervalCategoryDataset.java
29: * ----------------------------
30: * (C) Copyright 2002-2007, by Eduard Martinescu and Contributors.
31: *
32: * Original Author: Eduard Martinescu;
33: * Contributor(s): David Gilbert (for Object Refinery Limited);
34: *
35: * $Id: IntervalCategoryDataset.java,v 1.2.2.2 2007/01/17 15:51:15 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 19-Mar-2002 : Version 1 contributed by Eduard Martinescu. The interface
40: * name and method names have been renamed to be consistent with
41: * existing interfaces (DG);
42: * 06-Jun-2002 : Updated Javadoc comments (DG);
43: * 24-Oct-2002 : Categories and series are now indexed by int or Comparable,
44: * following changes made to the CategoryDataset interface (DG);
45: *
46: */
47:
48: package org.jfree.data.category;
49:
50: /**
51: * A category dataset that defines a value range for each series/category
52: * combination.
53: */
54: public interface IntervalCategoryDataset extends CategoryDataset {
55:
56: /**
57: * Returns the start value for the interval for a given series and category.
58: *
59: * @param series the series (zero-based index).
60: * @param category the category (zero-based index).
61: *
62: * @return The start value (possibly <code>null</code>).
63: */
64: public Number getStartValue(int series, int category);
65:
66: /**
67: * Returns the start value for the interval for a given series and category.
68: *
69: * @param series the series key.
70: * @param category the category key.
71: *
72: * @return The start value (possibly <code>null</code>).
73: */
74: public Number getStartValue(Comparable series, Comparable category);
75:
76: /**
77: * Returns the end value for the interval for a given series and category.
78: *
79: * @param series the series (zero-based index).
80: * @param category the category (zero-based index).
81: *
82: * @return The end value (possibly <code>null</code>).
83: */
84: public Number getEndValue(int series, int category);
85:
86: /**
87: * Returns the end value for the interval for a given series and category.
88: *
89: * @param series the series key.
90: * @param category the category key.
91: *
92: * @return The end value (possibly <code>null</code>).
93: */
94: public Number getEndValue(Comparable series, Comparable category);
95:
96: }
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