public DefaultIntervalXYDataset() 
{
        this.seriesKeys = new java.util.ArrayList();
        this.seriesList = new java.util.ArrayList();
}

Creates a new DefaultIntervalXYDataset instance, initially containing no data.

 public  void addSeries(Comparable seriesKey,
    double[][] data) 
{
        if (seriesKey == null) {
            throw new IllegalArgumentException(
                    "The 'seriesKey' cannot be null.");
        }
        if (data == null) {
            throw new IllegalArgumentException("The 'data' is null.");
        }
        if (data.length != 6) {
            throw new IllegalArgumentException(
                    "The 'data' array must have length == 6.");
        }
        int length = data[0].length;
        if (length != data[1].length || length != data[2].length
                || length != data[3].length || length != data[4].length
                || length != data[5].length) {
            throw new IllegalArgumentException(
                "The 'data' array must contain two arrays with equal length.");
        }
        int seriesIndex = indexOf(seriesKey);
        if (seriesIndex == -1) {  // add a new series
            this.seriesKeys.add(seriesKey);
            this.seriesList.add(data);
        }
        else {  // replace an existing series
            this.seriesList.remove(seriesIndex);
            this.seriesList.add(seriesIndex, data);
        }
        notifyListeners(new DatasetChangeEvent(this, this));
}

Adds a series or if a series with the same key already exists replaces the data for that series, then sends a DatasetChangeEvent to all registered listeners.

 public Object clone() throws CloneNotSupportedException 
{
        DefaultIntervalXYDataset clone
                = (DefaultIntervalXYDataset) super.clone();
        clone.seriesKeys = new java.util.ArrayList(this.seriesKeys);
        clone.seriesList = new ArrayList(this.seriesList.size());
        for (int i = 0; i <  this.seriesList.size(); i++) {
            double[][] data = (double[][]) this.seriesList.get(i);
            double[] x = data[0];
            double[] xStart = data[1];
            double[] xEnd = data[2];
            double[] y = data[3];
            double[] yStart = data[4];
            double[] yEnd = data[5];
            double[] xx = new double[x.length];
            double[] xxStart = new double[xStart.length];
            double[] xxEnd = new double[xEnd.length];
            double[] yy = new double[y.length];
            double[] yyStart = new double[yStart.length];
            double[] yyEnd = new double[yEnd.length];
            System.arraycopy(x, 0, xx, 0, x.length);
            System.arraycopy(xStart, 0, xxStart, 0, xStart.length);
            System.arraycopy(xEnd, 0, xxEnd, 0, xEnd.length);
            System.arraycopy(y, 0, yy, 0, y.length);
            System.arraycopy(yStart, 0, yyStart, 0, yStart.length);
            System.arraycopy(yEnd, 0, yyEnd, 0, yEnd.length);
            clone.seriesList.add(i, new double[][] {xx, xxStart, xxEnd, yy,
                    yyStart, yyEnd});
        }
        return clone;
}

Returns a clone of this dataset.

 public boolean equals(Object obj) 
{
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof DefaultIntervalXYDataset)) {
            return false;
        }
        DefaultIntervalXYDataset that = (DefaultIntervalXYDataset) obj;
        if (!this.seriesKeys.equals(that.seriesKeys)) {
            return false;
        }
        for (int i = 0; i <  this.seriesList.size(); i++) {
            double[][] d1 = (double[][]) this.seriesList.get(i);
            double[][] d2 = (double[][]) that.seriesList.get(i);
            double[] d1x = d1[0];
            double[] d2x = d2[0];
            if (!Arrays.equals(d1x, d2x)) {
                return false;
            }
            double[] d1xs = d1[1];
            double[] d2xs = d2[1];
            if (!Arrays.equals(d1xs, d2xs)) {
                return false;
            }
            double[] d1xe = d1[2];
            double[] d2xe = d2[2];
            if (!Arrays.equals(d1xe, d2xe)) {
                return false;
            }
            double[] d1y = d1[3];
            double[] d2y = d2[3];
            if (!Arrays.equals(d1y, d2y)) {
                return false;
            }
            double[] d1ys = d1[4];
            double[] d2ys = d2[4];
            if (!Arrays.equals(d1ys, d2ys)) {
                return false;
            }
            double[] d1ye = d1[5];
            double[] d2ye = d2[5];
            if (!Arrays.equals(d1ye, d2ye)) {
                return false;
            }
        }
        return true;
}

Tests this DefaultIntervalXYDataset instance for equality with an arbitrary object. This method returns true if and only if:
• obj is not null;
• obj is an instance of DefaultIntervalXYDataset;
• both datasets have the same number of series, each containing exactly the same values.

 public Number getEndX(int series,
    int item) 
{
        return new Double(getEndXValue(series, item));
}

Returns the ending x-value for an item within a series.

 public double getEndXValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[2][item];
}

Returns the ending x-value for an item within a series.

 public Number getEndY(int series,
    int item) 
{
        return new Double(getEndYValue(series, item));
}

Returns the ending y-value for an item within a series.

 public double getEndYValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[5][item];
}

Returns the ending y-value for an item within a series.

 public int getItemCount(int series) 
{
        if ((series <  0) || (series  >= getSeriesCount())) {
            throw new IllegalArgumentException("Series index out of bounds");
        }
        double[][] seriesArray = (double[][]) this.seriesList.get(series);
        return seriesArray[0].length;
}

Returns the number of items in the specified series.

 public int getSeriesCount() 
{
        return this.seriesList.size();
}

Returns the number of series in the dataset.

 public Comparable getSeriesKey(int series) 
{
        if ((series <  0) || (series  >= getSeriesCount())) {
            throw new IllegalArgumentException("Series index out of bounds");
        }
        return (Comparable) this.seriesKeys.get(series);
}

Returns the key for a series.

 public Number getStartX(int series,
    int item) 
{
        return new Double(getStartXValue(series, item));
}

Returns the starting x-value for an item within a series.

 public double getStartXValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[1][item];
}

Returns the starting x-value for an item within a series.

 public Number getStartY(int series,
    int item) 
{
        return new Double(getStartYValue(series, item));
}

Returns the starting y-value for an item within a series.

 public double getStartYValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[4][item];
}

Returns the starting y-value for an item within a series.

 public Number getX(int series,
    int item) 
{
        return new Double(getXValue(series, item));
}

Returns the x-value for an item within a series.

 public double getXValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[0][item];
}

Returns the x-value for an item within a series.

 public Number getY(int series,
    int item) 
{
        return new Double(getYValue(series, item));
}

Returns the y-value for an item within a series.

 public double getYValue(int series,
    int item) 
{
        double[][] seriesData = (double[][]) this.seriesList.get(series);
        return seriesData[3][item];
}

Returns the y-value for an item within a series.

 public int hashCode() 
{
        int result;
        result = this.seriesKeys.hashCode();
        result = 29 * result + this.seriesList.hashCode();
        return result;
}

Returns a hash code for this instance.