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Java > Open Source Codes > net > sf > jasperreports > engine > JRChartDataset


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.engine;
29
30 import net.sf.jasperreports.engine.design.JRVerifier;
31
32
33 /**
34  * Datasets are used to represent the actual data needed to generate a chart. The dataset structure may vary with each chart type. This
35  * is the superinterface for all datasets and contains common dataset properties.
36  * @author Teodor Danciu (teodord@users.sourceforge.net)
37  * @version $Id: JRChartDataset.java 1393 2006-09-06 01:04:21 +0300 (Wed, 06 Sep 2006) bklawans $
38  */
39 public interface JRChartDataset extends JRElementDataset
40 {
41     public static final byte PIE_DATASET = 1;
42     public static final byte CATEGORY_DATASET = 2;
43     public static final byte XY_DATASET = 3;
44     public static final byte XYZ_DATASET = 4;
45     public static final byte TIMEPERIOD_DATASET = 5;
46     public static final byte TIMESERIES_DATASET = 6;
47     public static final byte HIGHLOW_DATASET = 7;
48     public static final byte VALUE_DATASET = 8;
49     
50     /**
51      * Gets the dataset type. Must be one of the dataset type constants defined in this class.
52      */
53     public byte getDatasetType();
54
55     
56     /**
57      * Validates the dataset using a verifier.
58      * <p>
59      * Broken rules are collected by the verifier.
60      * </p>
61      *
62      * @param verifier the verifier to use for validation
63      */
64     public void validate(JRVerifier verifier);
65     
66 }
67
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