1. /* ===========================================================

  2.  * JFreeChart : a free chart library for the Java(tm) platform

  3.  * ===========================================================

  4.  *

  5.  * (C) Copyright 2000-2004, 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 under the terms

  10.  * of the GNU Lesser General Public License as published by the Free Software Foundation;

  11.  * either version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

  14.  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  15.  * See the GNU Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public License along with this

  18.  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,

  19.  * Boston, MA 02111-1307, USA.

  20.  *

  21.  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

  22.  * in the United States and other countries.]

  23.  *

  24.  * -------------------

  25.  * SignalsDataset.java

  26.  * -------------------

  27.  * (C) Copyright 2002-2004, by Sylvain Vieujot and Contributors.

  28.  *

  29.  * Original Author:  Sylvain Vieujot;

  30.  * Contributor(s):   David Gilbert (for Object Refinery Limited);

  31.  *

  32.  * $Id: SignalsDataset.java,v 1.1 2004/08/31 15:36:12 mungady Exp $

  33.  *

  34.  * Changes

  35.  * -------

  36.  * 08-Jan-2002 : Version 1 (SV);

  37.  * 07-Oct-2002 : Added Javadocs (DG);

  38.  */

  39. 

  40. package org.jfree.data.xy;

  41. 

  42. 

  43. /**

  44.  * An interface that adds signal information to an {@link XYDataset}.

  45.  *

  46.  * @author Sylvain Vieujot

  47.  */

  48. public interface SignalsDataset extends XYDataset {

  49. 

  50.     /** Useful constant indicating trade recommendation. */

  51.     public static final int ENTER_LONG = 1;

  52. 

  53.     /** Useful constant indicating trade recommendation. */

  54.     public static final int ENTER_SHORT = -1;

  55. 

  56.     /** Useful constant indicating trade recommendation. */

  57.     public static final int EXIT_LONG = 2;

  58. 

  59.     /** Useful constant indicating trade recommendation. */

  60.     public static final int EXIT_SHORT = -2;

  61. 

  62.     /**

  63.      * Returns the type.

  64.      *

  65.      * @param series  the series (zero-based index).

  66.      * @param item  the item (zero-based index).

  67.      *

  68.      * @return the type.

  69.      */

  70.     public int getType(int series, int item);

  71. 

  72.     /**

  73.      * Returns the level.

  74.      *

  75.      * @param series  the series (zero-based index).

  76.      * @param item  the item (zero-based index).

  77.      *

  78.      * @return the level.

  79.      */

  80.     public double getLevel(int series, int item);

  81. 

  82. }