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jfreechart example source code file (XYSeriesCollection.java)

This example jfreechart source code file (XYSeriesCollection.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

illegalargumentexception, illegalargumentexception, intervalxydelegate, io, list, null, number, number, range, series, util, xydataitem, xyseries, xyseries, xyseriescollection, xyseriescollection

The jfreechart XYSeriesCollection.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2009, 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.]
 *
 * -----------------------
 * XYSeriesCollection.java
 * -----------------------
 * (C) Copyright 2001-2009, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   Aaron Metzger;
 *
 * Changes
 * -------
 * 15-Nov-2001 : Version 1 (DG);
 * 03-Apr-2002 : Added change listener code (DG);
 * 29-Apr-2002 : Added removeSeries, removeAllSeries methods (ARM);
 * 07-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 26-Mar-2003 : Implemented Serializable (DG);
 * 04-Aug-2003 : Added getSeries() method (DG);
 * 31-Mar-2004 : Modified to use an XYIntervalDelegate.
 * 05-May-2004 : Now extends AbstractIntervalXYDataset (DG);
 * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.xy (DG);
 * 17-Nov-2004 : Updated for changes to DomainInfo interface (DG);
 * 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
 * 28-Mar-2005 : Fixed bug in getSeries(int) method (1170825) (DG);
 * 05-Oct-2005 : Made the interval delegate a dataset listener (DG);
 * ------------- JFREECHART 1.0.x ---------------------------------------------
 * 27-Nov-2006 : Added clone() override (DG);
 * 08-May-2007 : Added indexOf(XYSeries) method (DG);
 * 03-Dec-2007 : Added getSeries(Comparable) method (DG);
 * 22-Apr-2008 : Implemented PublicCloneable (DG);
 * 27-Feb-2009 : Overridden getDomainOrder() to detect when all series are
 *               sorted in ascending order (DG);
 * 06-Mar-2009 : Implemented RangeInfo (DG);
 * 06-Mar-2009 : Fixed equals() implementation (DG);
 *
 */

package org.jfree.data.xy;

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

import org.jfree.chart.HashUtilities;
import org.jfree.data.DomainInfo;
import org.jfree.data.DomainOrder;
import org.jfree.data.Range;
import org.jfree.data.RangeInfo;
import org.jfree.data.UnknownKeyException;
import org.jfree.data.general.DatasetChangeEvent;
import org.jfree.util.ObjectUtilities;
import org.jfree.util.PublicCloneable;

/**
 * Represents a collection of {@link XYSeries} objects that can be used as a
 * dataset.
 */
public class XYSeriesCollection extends AbstractIntervalXYDataset
        implements IntervalXYDataset, DomainInfo, RangeInfo, PublicCloneable,
                   Serializable {

    /** For serialization. */
    private static final long serialVersionUID = -7590013825931496766L;

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

    /** The interval delegate (used to calculate the start and end x-values). */
    private IntervalXYDelegate intervalDelegate;

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

    /**
     * Constructs a dataset and populates it with a single series.
     *
     * @param series  the series (<code>null ignored).
     */
    public XYSeriesCollection(XYSeries series) {
        this.data = new java.util.ArrayList();
        this.intervalDelegate = new IntervalXYDelegate(this, false);
        addChangeListener(this.intervalDelegate);
        if (series != null) {
            this.data.add(series);
            series.addChangeListener(this);
        }
    }

    /**
     * Returns the order of the domain (X) values, if this is known.
     *
     * @return The domain order.
     */
    public DomainOrder getDomainOrder() {
        int seriesCount = getSeriesCount();
        for (int i = 0; i < seriesCount; i++) {
            XYSeries s = getSeries(i);
            if (!s.getAutoSort()) {
                return DomainOrder.NONE;  // we can't be sure of the order
            }
        }
        return DomainOrder.ASCENDING;
    }

    /**
     * Adds a series to the collection and sends a {@link DatasetChangeEvent}
     * to all registered listeners.
     *
     * @param series  the series (<code>null not permitted).
     */
    public void addSeries(XYSeries series) {
        if (series == null) {
            throw new IllegalArgumentException("Null 'series' argument.");
        }
        this.data.add(series);
        series.addChangeListener(this);
        fireDatasetChanged();
    }

    /**
     * Removes a series from the collection and sends a
     * {@link DatasetChangeEvent} to all registered listeners.
     *
     * @param series  the series index (zero-based).
     */
    public void removeSeries(int series) {
        if ((series < 0) || (series >= getSeriesCount())) {
            throw new IllegalArgumentException("Series index out of bounds.");
        }

        // fetch the series, remove the change listener, then remove the series.
        XYSeries ts = (XYSeries) this.data.get(series);
        ts.removeChangeListener(this);
        this.data.remove(series);
        fireDatasetChanged();
    }

    /**
     * Removes a series from the collection and sends a
     * {@link DatasetChangeEvent} to all registered listeners.
     *
     * @param series  the series (<code>null not permitted).
     */
    public void removeSeries(XYSeries series) {
        if (series == null) {
            throw new IllegalArgumentException("Null 'series' argument.");
        }
        if (this.data.contains(series)) {
            series.removeChangeListener(this);
            this.data.remove(series);
            fireDatasetChanged();
        }
    }

    /**
     * Removes all the series from the collection and sends a
     * {@link DatasetChangeEvent} to all registered listeners.
     */
    public void removeAllSeries() {
        // Unregister the collection as a change listener to each series in
        // the collection.
        for (int i = 0; i < this.data.size(); i++) {
          XYSeries series = (XYSeries) this.data.get(i);
          series.removeChangeListener(this);
        }

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

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

    /**
     * Returns a list of all the series in the collection.
     *
     * @return The list (which is unmodifiable).
     */
    public List getSeries() {
        return Collections.unmodifiableList(this.data);
    }

    /**
     * Returns the index of the specified series, or -1 if that series is not
     * present in the dataset.
     *
     * @param series  the series (<code>null not permitted).
     *
     * @return The series index.
     *
     * @since 1.0.6
     */
    public int indexOf(XYSeries series) {
        if (series == null) {
            throw new IllegalArgumentException("Null 'series' argument.");
        }
        return this.data.indexOf(series);
    }

    /**
     * Returns a series from the collection.
     *
     * @param series  the series index (zero-based).
     *
     * @return The series.
     *
     * @throws IllegalArgumentException if <code>series is not in the
     *     range <code>0 to getSeriesCount() - 1.
     */
    public XYSeries getSeries(int series) {
        if ((series < 0) || (series >= getSeriesCount())) {
            throw new IllegalArgumentException("Series index out of bounds");
        }
        return (XYSeries) this.data.get(series);
    }

    /**
     * Returns a series from the collection.
     *
     * @param key  the key (<code>null not permitted).
     *
     * @return The series with the specified key.
     *
     * @throws UnknownKeyException if <code>key is not found in the
     *         collection.
     *
     * @since 1.0.9
     */
    public XYSeries getSeries(Comparable key) {
        if (key == null) {
            throw new IllegalArgumentException("Null 'key' argument.");
        }
        Iterator iterator = this.data.iterator();
        while (iterator.hasNext()) {
            XYSeries series = (XYSeries) iterator.next();
            if (key.equals(series.getKey())) {
                return series;
            }
        }
        throw new UnknownKeyException("Key not found: " + key);
    }

    /**
     * Returns the key for a series.
     *
     * @param series  the series index (in the range <code>0 to
     *     <code>getSeriesCount() - 1).
     *
     * @return The key for a series.
     *
     * @throws IllegalArgumentException if <code>series is not in the
     *     specified range.
     */
    public Comparable getSeriesKey(int series) {
        // defer argument checking
        return getSeries(series).getKey();
    }

    /**
     * Returns the number of items in the specified series.
     *
     * @param series  the series (zero-based index).
     *
     * @return The item count.
     *
     * @throws IllegalArgumentException if <code>series is not in the
     *     range <code>0 to getSeriesCount() - 1.
     */
    public int getItemCount(int series) {
        // defer argument checking
        return getSeries(series).getItemCount();
    }

    /**
     * Returns the x-value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     *
     * @return The value.
     */
    public Number getX(int series, int item) {
        XYSeries ts = (XYSeries) this.data.get(series);
        XYDataItem xyItem = ts.getDataItem(item);
        return xyItem.getX();
    }

    /**
     * Returns the starting X value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     *
     * @return The starting X value.
     */
    public Number getStartX(int series, int item) {
        return this.intervalDelegate.getStartX(series, item);
    }

    /**
     * Returns the ending X value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     *
     * @return The ending X value.
     */
    public Number getEndX(int series, int item) {
        return this.intervalDelegate.getEndX(series, item);
    }

    /**
     * Returns the y-value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param index  the index of the item of interest (zero-based).
     *
     * @return The value (possibly <code>null).
     */
    public Number getY(int series, int index) {
        XYSeries ts = (XYSeries) this.data.get(series);
        XYDataItem xyItem = ts.getDataItem(index);
        return xyItem.getY();
    }

    /**
     * Returns the starting Y value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     *
     * @return The starting Y value.
     */
    public Number getStartY(int series, int item) {
        return getY(series, item);
    }

    /**
     * Returns the ending Y value for the specified series and item.
     *
     * @param series  the series (zero-based index).
     * @param item  the item (zero-based index).
     *
     * @return The ending Y value.
     */
    public Number getEndY(int series, int item) {
        return getY(series, item);
    }

    /**
     * Tests this collection for equality with an arbitrary object.
     *
     * @param obj  the object (<code>null permitted).
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof XYSeriesCollection)) {
            return false;
        }
        XYSeriesCollection that = (XYSeriesCollection) obj;
        if (!this.intervalDelegate.equals(that.intervalDelegate)) {
            return false;
        }
        return ObjectUtilities.equal(this.data, that.data);
    }

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

    /**
     * Returns a hash code.
     *
     * @return A hash code.
     */
    public int hashCode() {
        int hash = 5;
        hash = HashUtilities.hashCode(hash, this.intervalDelegate);
        hash = HashUtilities.hashCode(hash, this.data);
        return hash;
    }

    /**
     * Returns the minimum x-value in the dataset.
     *
     * @param includeInterval  a flag that determines whether or not the
     *                         x-interval is taken into account.
     *
     * @return The minimum value.
     */
    public double getDomainLowerBound(boolean includeInterval) {
        if (includeInterval) {
            return this.intervalDelegate.getDomainLowerBound(includeInterval);
        }
        else {
            double result = Double.NaN;
            int seriesCount = getSeriesCount();
            for (int s = 0; s < seriesCount; s++) {
                XYSeries series = getSeries(s);
                double lowX = series.getMinX();
                if (Double.isNaN(result)) {
                    result = lowX;
                }
                else {
                    if (!Double.isNaN(lowX)) {
                        result = Math.min(result, lowX);
                    }
                }
            }
            return result;
        }
    }

    /**
     * Returns the maximum x-value in the dataset.
     *
     * @param includeInterval  a flag that determines whether or not the
     *                         x-interval is taken into account.
     *
     * @return The maximum value.
     */
    public double getDomainUpperBound(boolean includeInterval) {
        if (includeInterval) {
            return this.intervalDelegate.getDomainUpperBound(includeInterval);
        }
        else {
            double result = Double.NaN;
            int seriesCount = getSeriesCount();
            for (int s = 0; s < seriesCount; s++) {
                XYSeries series = getSeries(s);
                double hiX = series.getMaxX();
                if (Double.isNaN(result)) {
                    result = hiX;
                }
                else {
                    if (!Double.isNaN(hiX)) {
                        result = Math.max(result, hiX);
                    }
                }
            }
            return result;
        }
    }

    /**
     * Returns the range of the values in this dataset's domain.
     *
     * @param includeInterval  a flag that determines whether or not the
     *                         x-interval is taken into account.
     *
     * @return The range (or <code>null if the dataset contains no
     *     values).
     */
    public Range getDomainBounds(boolean includeInterval) {
        if (includeInterval) {
            return this.intervalDelegate.getDomainBounds(includeInterval);
        }
        else {
            double lower = Double.POSITIVE_INFINITY;
            double upper = Double.NEGATIVE_INFINITY;
            int seriesCount = getSeriesCount();
            for (int s = 0; s < seriesCount; s++) {
                XYSeries series = getSeries(s);
                double minX = series.getMinX();
                if (!Double.isNaN(minX)) {
                    lower = Math.min(lower, minX);
                }
                double maxX = series.getMaxX();
                if (!Double.isNaN(maxX)) {
                    upper = Math.max(upper, maxX);
                }
            }
            if (lower > upper) {
                return null;
            }
            else {
                return new Range(lower, upper);
            }
        }
    }

    /**
     * Returns the interval width. This is used to calculate the start and end
     * x-values, if/when the dataset is used as an {@link IntervalXYDataset}.
     *
     * @return The interval width.
     */
    public double getIntervalWidth() {
        return this.intervalDelegate.getIntervalWidth();
    }

    /**
     * Sets the interval width and sends a {@link DatasetChangeEvent} to all
     * registered listeners.
     *
     * @param width  the width (negative values not permitted).
     */
    public void setIntervalWidth(double width) {
        if (width < 0.0) {
            throw new IllegalArgumentException("Negative 'width' argument.");
        }
        this.intervalDelegate.setFixedIntervalWidth(width);
        fireDatasetChanged();
    }

    /**
     * Returns the interval position factor.
     *
     * @return The interval position factor.
     */
    public double getIntervalPositionFactor() {
        return this.intervalDelegate.getIntervalPositionFactor();
    }

    /**
     * Sets the interval position factor. This controls where the x-value is in
     * relation to the interval surrounding the x-value (0.0 means the x-value
     * will be positioned at the start, 0.5 in the middle, and 1.0 at the end).
     *
     * @param factor  the factor.
     */
    public void setIntervalPositionFactor(double factor) {
        this.intervalDelegate.setIntervalPositionFactor(factor);
        fireDatasetChanged();
    }

    /**
     * Returns whether the interval width is automatically calculated or not.
     *
     * @return Whether the width is automatically calculated or not.
     */
    public boolean isAutoWidth() {
        return this.intervalDelegate.isAutoWidth();
    }

    /**
     * Sets the flag that indicates wether the interval width is automatically
     * calculated or not.
     *
     * @param b  a boolean.
     */
    public void setAutoWidth(boolean b) {
        this.intervalDelegate.setAutoWidth(b);
        fireDatasetChanged();
    }

    /**
     * Returns the range of the values in this dataset's range.
     *
     * @param includeInterval  ignored.
     *
     * @return The range (or <code>null if the dataset contains no
     *     values).
     */
    public Range getRangeBounds(boolean includeInterval) {
        double lower = Double.POSITIVE_INFINITY;
        double upper = Double.NEGATIVE_INFINITY;
        int seriesCount = getSeriesCount();
        for (int s = 0; s < seriesCount; s++) {
            XYSeries series = getSeries(s);
            double minY = series.getMinY();
            if (!Double.isNaN(minY)) {
                lower = Math.min(lower, minY);
            }
            double maxY = series.getMaxY();
            if (!Double.isNaN(maxY)) {
                upper = Math.max(upper, maxY);
            }
        }
        if (lower > upper) {
            return null;
        }
        else {
            return new Range(lower, upper);
        }
    }

    /**
     * Returns the minimum y-value in the dataset.
     *
     * @param includeInterval  a flag that determines whether or not the
     *                         y-interval is taken into account.
     *
     * @return The minimum value.
     */
    public double getRangeLowerBound(boolean includeInterval) {
        double result = Double.NaN;
        int seriesCount = getSeriesCount();
        for (int s = 0; s < seriesCount; s++) {
            XYSeries series = getSeries(s);
            double lowY = series.getMinY();
            if (Double.isNaN(result)) {
                result = lowY;
            }
            else {
                if (!Double.isNaN(lowY)) {
                    result = Math.min(result, lowY);
                }
            }
        }
        return result;
    }

    /**
     * Returns the maximum y-value in the dataset.
     *
     * @param includeInterval  a flag that determines whether or not the
     *                         y-interval is taken into account.
     *
     * @return The maximum value.
     */
    public double getRangeUpperBound(boolean includeInterval) {
        double result = Double.NaN;
        int seriesCount = getSeriesCount();
        for (int s = 0; s < seriesCount; s++) {
            XYSeries series = getSeries(s);
            double hiY = series.getMaxY();
            if (Double.isNaN(result)) {
                result = hiY;
            }
            else {
                if (!Double.isNaN(hiY)) {
                    result = Math.max(result, hiY);
                }
            }
        }
        return result;
    }

}

Other jfreechart examples (source code examples)

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