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Java > Open Source Codes > org > jfree > data > xy > SignalsDataset


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jfreechart/index.html
8  *
9  * 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 License
20  * along with this library; if not, write to the Free Software Foundation,
21  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24  * in the United States and other countries.]
25  *
26  * -------------------
27  * SignalsDataset.java
28  * -------------------
29  * (C) Copyright 2002-2004, by Sylvain Vieujot and Contributors.
30  *
31  * Original Author: Sylvain Vieujot;
32  * Contributor(s): David Gilbert (for Object Refinery Limited);
33  *
34  * $Id: SignalsDataset.java,v 1.3 2005/03/28 19:44:01 mungady Exp $
35  *
36  * Changes
37  * -------
38  * 08-Jan-2002 : Version 1 (SV);
39  * 07-Oct-2002 : Added Javadocs (DG);
40  */
41
42 package org.jfree.data.xy;
43
44
45 /**
46  * An interface that adds signal information to an {@link XYDataset}.
47  *
48  * @author Sylvain Vieujot
49  */
50 public interface SignalsDataset extends XYDataset {
51
52     /** Useful constant indicating trade recommendation. */
53     public static final int ENTER_LONG = 1;
54
55     /** Useful constant indicating trade recommendation. */
56     public static final int ENTER_SHORT = -1;
57
58     /** Useful constant indicating trade recommendation. */
59     public static final int EXIT_LONG = 2;
60
61     /** Useful constant indicating trade recommendation. */
62     public static final int EXIT_SHORT = -2;
63
64     /**
65      * Returns the type.
66      *
67      * @param series the series (zero-based index).
68      * @param item the item (zero-based index).
69      *
70      * @return The type.
71      */
72     public int getType(int series, int item);
73
74     /**
75      * Returns the level.
76      *
77      * @param series the series (zero-based index).
78      * @param item the item (zero-based index).
79      *
80      * @return The level.
81      */
82     public double getLevel(int series, int item);
83
84 }
85
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