Package org.jfree.data

Class DefaultHighLowDataset

java.lang.Object
org.jfree.data.AbstractDataset
org.jfree.data.AbstractSeriesDataset
org.jfree.data.AbstractXYDataset
org.jfree.data.DefaultHighLowDataset
All Implemented Interfaces:
ObjectInputValidation, Serializable, Cloneable, EventListener, Dataset, HighLowDataset, SeriesChangeListener, SeriesDataset, XYDataset
public class DefaultHighLowDataset
extends AbstractXYDataset
implements HighLowDataset
A simple implementation of the HighLowDataset.
See Also:
Serialized Form

  • Constructor Details

    • DefaultHighLowDataset

      public DefaultHighLowDataset​(String seriesName, Date[] date, double[] high, double[] low, double[] open, double[] close, double[] volume)
      Constructs a new high/low/open/close dataset.

      The current implementation allows only one series in the dataset. This may be extended in a future version.

      Parameters:
      seriesName - the name of the series.
      date - the dates.
      high - the high values.
      low - the low values.
      open - the open values.
      close - the close values.
      volume - the volume values.

  • Method Details

    • getSeriesName

      public String getSeriesName​(int i)
      Returns the name of the series stored in this dataset.
      Specified by:
      getSeriesName in interface SeriesDataset
      Specified by:
      getSeriesName in class AbstractSeriesDataset
      Parameters:
      i - the index of the series. Currently ignored.
      Returns:
      the name of this series.

    • getXValue

      public Number getXValue​(int series, int item)
      Returns the x-value for one item in a series.

      The value returned is a Long object generated from the underlying Date object.

      Specified by:
      getXValue in interface XYDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the x-value.

    • getXDate

      public Date getXDate​(int series, int item)
      Returns the x-value for one item in a series, as a Date.

      This method is provided for convenience only.

      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the x-value as a Date.

    • getYValue

      public Number getYValue​(int series, int item)
      Returns the y-value for one item in a series.

      This method (from the XYDataset interface) is mapped to the getCloseValue(...) method.

      Specified by:
      getYValue in interface XYDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the y-value.

    • getHighValue

      public Number getHighValue​(int series, int item)
      Returns the high-value for one item in a series.
      Specified by:
      getHighValue in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the high-value.

    • getHigh

      public double getHigh​(int series, int item)
      Returns the high-value (as a double primitive) for an item within a series.
      Specified by:
      getHigh in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The high-value.

    • getLowValue

      public Number getLowValue​(int series, int item)
      Returns the low-value for one item in a series.
      Specified by:
      getLowValue in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the low-value.

    • getLow

      public double getLow​(int series, int item)
      Returns the low-value (as a double primitive) for an item within a series.
      Specified by:
      getLow in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The low-value.

    • getOpenValue

      public Number getOpenValue​(int series, int item)
      Returns the open-value for one item in a series.
      Specified by:
      getOpenValue in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the open-value.

    • getOpen

      public double getOpen​(int series, int item)
      Returns the open-value (as a double primitive) for an item within a series.
      Specified by:
      getOpen in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The open-value.

    • getCloseValue

      public Number getCloseValue​(int series, int item)
      Returns the close-value for one item in a series.
      Specified by:
      getCloseValue in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the close-value.

    • getClose

      public double getClose​(int series, int item)
      Returns the close-value (as a double primitive) for an item within a series.
      Specified by:
      getClose in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The close-value.

    • getVolumeValue

      public Number getVolumeValue​(int series, int item)
      Returns the volume-value for one item in a series.
      Specified by:
      getVolumeValue in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the volume-value.

    • getVolume

      public double getVolume​(int series, int item)
      Returns the volume-value (as a double primitive) for an item within a series.
      Specified by:
      getVolume in interface HighLowDataset
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The volume-value.

    • getSeriesCount

      public int getSeriesCount()
      Returns the number of series in the dataset.

      This implementation only allows one series.

      Specified by:
      getSeriesCount in interface SeriesDataset
      Specified by:
      getSeriesCount in class AbstractSeriesDataset
      Returns:
      the number of series.

    • getItemCount

      public int getItemCount​(int series)
      Returns the number of items in the specified series.
      Specified by:
      getItemCount in interface XYDataset
      Parameters:
      series - the index (zero-based) of the series.
      Returns:
      the number of items in the specified series.

    • createNumberArray

      public static Number[] createNumberArray​(double[] data)
      Constructs an array of Number objects from an array of doubles.
      Parameters:
      data - the double values to convert.
      Returns:
      data as array of Number.