/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ---------------------
* SubseriesDataset.java
* ---------------------
* (C) Copyright 2001-2007, by Bill Kelemen and Contributors.
*
* Original Author: Bill Kelemen;
* Contributor(s): Sylvain Vieujot;
* David Gilbert (for Object Refinery Limited);
*
* Changes
* -------
* 06-Dec-2001 : Version 1 (BK);
* 05-Feb-2002 : Added SignalsDataset (and small change to HighLowDataset
* interface) as requested by Sylvain Vieujot (DG);
* 28-Feb-2002 : Fixed bug: missing map[series] in IntervalXYDataset and
* SignalsDataset methods (BK);
* 07-Oct-2002 : Fixed errors reported by Checkstyle (DG);
* 06-May-2004 : Now extends AbstractIntervalXYDataset (DG);
* 15-Jul-2004 : Switched getX() with getXValue() and getY() with
* getYValue() (DG);
* 29-Nov-2005 : Removed SignalsDataset (DG);
* ------------- JFREECHART 1.0.x ---------------------------------------------
* 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
*
*/
package org.jfree.data.general;
import org.jfree.data.xy.AbstractIntervalXYDataset;
import org.jfree.data.xy.IntervalXYDataset;
import org.jfree.data.xy.OHLCDataset;
import org.jfree.data.xy.XYDataset;
/**
* This class will create a dataset with one or more series from another
* {@link SeriesDataset}.
*/
public class SubSeriesDataset extends AbstractIntervalXYDataset
implements OHLCDataset,
IntervalXYDataset,
CombinationDataset {
/** The parent dataset. */
private SeriesDataset parent = null;
/** Storage for map. */
private int[] map; // maps our series into our parent's
/**
* Creates a SubSeriesDataset using one or more series from
* <code>parent</code>. The series to use are passed as an array of int.
*
* @param parent underlying dataset
* @param map int[] of series from parent to include in this Dataset
*/
public SubSeriesDataset(SeriesDataset parent, int[] map) {
this.parent = parent;
this.map = map;
}
/**
* Creates a SubSeriesDataset using one series from <code>parent</code>.
* The series to is passed as an int.
*
* @param parent underlying dataset
* @param series series from parent to include in this Dataset
*/
public SubSeriesDataset(SeriesDataset parent, int series) {
this(parent, new int[] {series});
}
///////////////////////////////////////////////////////////////////////////
// From HighLowDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the high-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link OHLCDataset}.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The high-value for the specified series and item.
*/
public Number getHigh(int series, int item) {
return ((OHLCDataset) this.parent).getHigh(this.map[series], item);
}
/**
* Returns the high-value (as a double primitive) for an item within a
* series.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return The high-value.
*/
public double getHighValue(int series, int item) {
double result = Double.NaN;
Number high = getHigh(series, item);
if (high != null) {
result = high.doubleValue();
}
return result;
}
/**
* Returns the low-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link OHLCDataset}.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The low-value for the specified series and item.
*/
public Number getLow(int series, int item) {
return ((OHLCDataset) this.parent).getLow(this.map[series], item);
}
/**
* Returns the low-value (as a double primitive) for an item within a
* series.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return The low-value.
*/
public double getLowValue(int series, int item) {
double result = Double.NaN;
Number low = getLow(series, item);
if (low != null) {
result = low.doubleValue();
}
return result;
}
/**
* Returns the open-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link OHLCDataset}.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The open-value for the specified series and item.
*/
public Number getOpen(int series, int item) {
return ((OHLCDataset) this.parent).getOpen(this.map[series], item);
}
/**
* Returns the open-value (as a double primitive) for an item within a
* series.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return The open-value.
*/
public double getOpenValue(int series, int item) {
double result = Double.NaN;
Number open = getOpen(series, item);
if (open != null) {
result = open.doubleValue();
}
return result;
}
/**
* Returns the close-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link OHLCDataset}.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The close-value for the specified series and item.
*/
public Number getClose(int series, int item) {
return ((OHLCDataset) this.parent).getClose(this.map[series], item);
}
/**
* Returns the close-value (as a double primitive) for an item within a
* series.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return The close-value.
*/
public double getCloseValue(int series, int item) {
double result = Double.NaN;
Number close = getClose(series, item);
if (close != null) {
result = close.doubleValue();
}
return result;
}
/**
* Returns the volume.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link OHLCDataset}.
*
* @param series the series (zero based index).
* @param item the item (zero based index).
*
* @return The volume.
*/
public Number getVolume(int series, int item) {
return ((OHLCDataset) this.parent).getVolume(this.map[series], item);
}
/**
* Returns the volume-value (as a double primitive) for an item within a
* series.
*
* @param series the series (zero-based index).
* @param item the item (zero-based index).
*
* @return The volume-value.
*/
public double getVolumeValue(int series, int item) {
double result = Double.NaN;
Number volume = getVolume(series, item);
if (volume != null) {
result = volume.doubleValue();
}
return result;
}
///////////////////////////////////////////////////////////////////////////
// From XYDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the X-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link XYDataset}.
*
* @param series the index of the series of interest (zero-based);
* @param item the index of the item of interest (zero-based).
*
* @return The X-value for the specified series and item.
*/
public Number getX(int series, int item) {
return ((XYDataset) this.parent).getX(this.map[series], item);
}
/**
* Returns the Y-value for the specified series and item.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link XYDataset}.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The Y-value for the specified series and item.
*/
public Number getY(int series, int item) {
return ((XYDataset) this.parent).getY(this.map[series], item);
}
/**
* Returns the number of items in a series.
* <p>
* Note: throws <code>ClassCastException</code> if the series if not from a
* {@link XYDataset}.
*
* @param series the index of the series of interest (zero-based).
*
* @return The number of items in a series.
*/
public int getItemCount(int series) {
return ((XYDataset) this.parent).getItemCount(this.map[series]);
}
///////////////////////////////////////////////////////////////////////////
// From SeriesDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the number of series in the dataset.
*
* @return The number of series in the dataset.
*/
public int getSeriesCount() {
return this.map.length;
}
/**
* Returns the key for a series.
*
* @param series the series (zero-based index).
*
* @return The name of a series.
*/
public Comparable getSeriesKey(int series) {
return this.parent.getSeriesKey(this.map[series]);
}
///////////////////////////////////////////////////////////////////////////
// From IntervalXYDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the starting X value for the specified series and item.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The starting X value for the specified series and item.
*/
public Number getStartX(int series, int item) {
if (this.parent instanceof IntervalXYDataset) {
return ((IntervalXYDataset) this.parent).getStartX(
this.map[series], item
);
}
else {
return getX(series, item);
}
}
/**
* Returns the ending X value for the specified series and item.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The ending X value for the specified series and item.
*/
public Number getEndX(int series, int item) {
if (this.parent instanceof IntervalXYDataset) {
return ((IntervalXYDataset) this.parent).getEndX(
this.map[series], item
);
}
else {
return getX(series, item);
}
}
/**
* Returns the starting Y value for the specified series and item.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The starting Y value for the specified series and item.
*/
public Number getStartY(int series, int item) {
if (this.parent instanceof IntervalXYDataset) {
return ((IntervalXYDataset) this.parent).getStartY(
this.map[series], item
);
}
else {
return getY(series, item);
}
}
/**
* Returns the ending Y value for the specified series and item.
*
* @param series the index of the series of interest (zero-based).
* @param item the index of the item of interest (zero-based).
*
* @return The ending Y value for the specified series and item.
*/
public Number getEndY(int series, int item) {
if (this.parent instanceof IntervalXYDataset) {
return ((IntervalXYDataset) this.parent).getEndY(
this.map[series], item
);
}
else {
return getY(series, item);
}
}
///////////////////////////////////////////////////////////////////////////
// New methods from CombinationDataset
///////////////////////////////////////////////////////////////////////////
/**
* Returns the parent Dataset of this combination.
*
* @return The parent Dataset of this combination.
*/
public SeriesDataset getParent() {
return this.parent;
}
/**
* Returns a map or indirect indexing form our series into parent's series.
*
* @return A map or indirect indexing form our series into parent's series.
*/
public int[] getMap() {
return (int[]) this.map.clone();
}
}
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