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jfreechart example source code file (MatrixSeriesCollection.java)

This example jfreechart source code file (MatrixSeriesCollection.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

cannot, clonenotsupportedexception, i, illegalargumentexception, illegalargumentexception, index, integer, io, list, matrixseries, matrixseries, matrixseriescollection, matrixseriescollection, number, number, util

The jfreechart MatrixSeriesCollection.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, 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.]
 *
 * ---------------------------
 * MatrixSeriesCollection.java
 * ---------------------------
 * (C) Copyright 2003-2008, by Barak Naveh and Contributors.
 *
 * Original Author:  Barak Naveh;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * Changes
 * -------
 * 10-Jul-2003 : Version 1 contributed by Barak Naveh (DG);
 * 05-May-2004 : Now extends AbstractXYZDataset (DG);
 * 15-Jul-2004 : Switched getZ() and getZValue() methods (DG);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 27-Nov-2006 : Added clone() override (DG);
 * 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);
 * 22-Apr-2008 : Implemented PublicCloneable (DG);
 */

package org.jfree.data.xy;

import java.io.Serializable;
import java.util.List;

import org.jfree.util.ObjectUtilities;
import org.jfree.util.PublicCloneable;

/**
 * Represents a collection of {@link MatrixSeries} that can be used as a
 * dataset.
 *
 * @see org.jfree.data.xy.MatrixSeries
 */
public class MatrixSeriesCollection extends AbstractXYZDataset
        implements XYZDataset, PublicCloneable, Serializable {

    /** For serialization. */
    private static final long serialVersionUID = -3197705779242543945L;

    /** The series that are included in the collection. */
    private List seriesList;

    /**
     * Constructs an empty dataset.
     */
    public MatrixSeriesCollection() {
        this(null);
    }


    /**
     * Constructs a dataset and populates it with a single matrix series.
     *
     * @param series the time series.
     */
    public MatrixSeriesCollection(MatrixSeries series) {
        this.seriesList = new java.util.ArrayList();

        if (series != null) {
            this.seriesList.add(series);
            series.addChangeListener(this);
        }
    }

    /**
     * Returns the number of items in the specified series.
     *
     * @param seriesIndex zero-based series index.
     *
     * @return The number of items in the specified series.
     */
    public int getItemCount(int seriesIndex) {
        return getSeries(seriesIndex).getItemCount();
    }


    /**
     * Returns the series having the specified index.
     *
     * @param seriesIndex zero-based series index.
     *
     * @return The series.
     *
     * @throws IllegalArgumentException
     */
    public MatrixSeries getSeries(int seriesIndex) {
        if ((seriesIndex < 0) || (seriesIndex > getSeriesCount())) {
            throw new IllegalArgumentException("Index outside valid range.");
        }

        MatrixSeries series = (MatrixSeries) this.seriesList.get(seriesIndex);

        return series;
    }


    /**
     * Returns the number of series in the collection.
     *
     * @return The number of series in the collection.
     */
    public int getSeriesCount() {
        return this.seriesList.size();
    }


    /**
     * Returns the key for a series.
     *
     * @param seriesIndex zero-based series index.
     *
     * @return The key for a series.
     */
    public Comparable getSeriesKey(int seriesIndex) {
        return getSeries(seriesIndex).getKey();
    }


    /**
     * Returns the j index value of the specified Mij matrix item in the
     * specified matrix series.
     *
     * @param seriesIndex zero-based series index.
     * @param itemIndex zero-based item index.
     *
     * @return The j index value for the specified matrix item.
     *
     * @see org.jfree.data.xy.XYDataset#getXValue(int, int)
     */
    public Number getX(int seriesIndex, int itemIndex) {
        MatrixSeries series = (MatrixSeries) this.seriesList.get(seriesIndex);
        int x = series.getItemColumn(itemIndex);

        return new Integer(x); // I know it's bad to create object. better idea?
    }


    /**
     * Returns the i index value of the specified Mij matrix item in the
     * specified matrix series.
     *
     * @param seriesIndex zero-based series index.
     * @param itemIndex zero-based item index.
     *
     * @return The i index value for the specified matrix item.
     *
     * @see org.jfree.data.xy.XYDataset#getYValue(int, int)
     */
    public Number getY(int seriesIndex, int itemIndex) {
        MatrixSeries series = (MatrixSeries) this.seriesList.get(seriesIndex);
        int y = series.getItemRow(itemIndex);

        return new Integer(y); // I know it's bad to create object. better idea?
    }


    /**
     * Returns the Mij item value of the specified Mij matrix item in the
     * specified matrix series.
     *
     * @param seriesIndex the series (zero-based index).
     * @param itemIndex zero-based item index.
     *
     * @return The Mij item value for the specified matrix item.
     *
     * @see org.jfree.data.xy.XYZDataset#getZValue(int, int)
     */
    public Number getZ(int seriesIndex, int itemIndex) {
        MatrixSeries series = (MatrixSeries) this.seriesList.get(seriesIndex);
        Number z = series.getItem(itemIndex);
        return z;
    }


    /**
     * Adds a series to the collection.
     * <P>
     * Notifies all registered listeners that the dataset has changed.
     * </p>
     *
     * @param series the series.
     *
     * @throws IllegalArgumentException
     */
    public void addSeries(MatrixSeries series) {
        // check arguments...
        if (series == null) {
            throw new IllegalArgumentException("Cannot add null series.");
        }
        // FIXME: Check that there isn't already a series with the same key

        // add the series...
        this.seriesList.add(series);
        series.addChangeListener(this);
        fireDatasetChanged();
    }


    /**
     * Tests this collection for equality with an arbitrary object.
     *
     * @param obj the object.
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }

        if (obj == this) {
            return true;
        }

        if (obj instanceof MatrixSeriesCollection) {
            MatrixSeriesCollection c = (MatrixSeriesCollection) obj;

            return ObjectUtilities.equal(this.seriesList, c.seriesList);
        }

        return false;
    }

    /**
     * Returns a hash code.
     *
     * @return A hash code.
     */
    public int hashCode() {
        return (this.seriesList != null ? this.seriesList.hashCode() : 0);
    }

    /**
     * Returns a clone of this instance.
     *
     * @return A clone.
     *
     * @throws CloneNotSupportedException if there is a problem.
     */
    public Object clone() throws CloneNotSupportedException {
        MatrixSeriesCollection clone = (MatrixSeriesCollection) super.clone();
        clone.seriesList = (List) ObjectUtilities.deepClone(this.seriesList);
        return clone;
    }

    /**
     * Removes all the series from the collection.
     * <P>
     * Notifies all registered listeners that the dataset has changed.
     * </p>
     */
    public void removeAllSeries() {
        // Unregister the collection as a change listener to each series in
        // the collection.
        for (int i = 0; i < this.seriesList.size(); i++) {
            MatrixSeries series = (MatrixSeries) this.seriesList.get(i);
            series.removeChangeListener(this);
        }

        // Remove all the series from the collection and notify listeners.
        this.seriesList.clear();
        fireDatasetChanged();
    }


    /**
     * Removes a series from the collection.
     * <P>
     * Notifies all registered listeners that the dataset has changed.
     * </p>
     *
     * @param series the series.
     *
     * @throws IllegalArgumentException
     */
    public void removeSeries(MatrixSeries series) {
        // check arguments...
        if (series == null) {
            throw new IllegalArgumentException("Cannot remove null series.");
        }

        // remove the series...
        if (this.seriesList.contains(series)) {
            series.removeChangeListener(this);
            this.seriesList.remove(series);
            fireDatasetChanged();
        }
    }


    /**
     * Removes a series from the collection.
     * <P>
     * Notifies all registered listeners that the dataset has changed.
     *
     * @param seriesIndex the series (zero based index).
     *
     * @throws IllegalArgumentException
     */
    public void removeSeries(int seriesIndex) {
        // check arguments...
        if ((seriesIndex < 0) || (seriesIndex > getSeriesCount())) {
            throw new IllegalArgumentException("Index outside valid range.");
        }

        // fetch the series, remove the change listener, then remove the series.
        MatrixSeries series = (MatrixSeries) this.seriesList.get(seriesIndex);
        series.removeChangeListener(this);
        this.seriesList.remove(seriesIndex);
        fireDatasetChanged();
    }

}

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