Package org.jfree.data

Interface XYDataset

All Superinterfaces:
Dataset, SeriesDataset
All Known Subinterfaces:
BoxAndWhiskerXYDataset, ContourDataset, HighLowDataset, IntervalXYDataset, IntervalXYZDataset, SignalsDataset, TableXYDataset, WindDataset, XYZDataset
All Known Implementing Classes:
AbstractIntervalXYDataset, AbstractXYDataset, AbstractXYZDataset, CategoryTableXYDataset, CombinedDataset, DefaultBoxAndWhiskerXYDataset, DefaultContourDataset, DefaultHighLowDataset, DefaultTableXYDataset, DefaultWindDataset, DynamicTimeSeriesCollection, EmptyXYDataset, HistogramDataset, JDBCXYDataset, MatrixSeriesCollection, MyXML_XYDataset, NonGridContourDataset, OHLCDataset, SampleSignalDataset, SampleXYDataset, SampleXYDataset2, SampleXYSymbolicDataset, SampleXYZDataset, SampleYSymbolicDataset, SimpleIntervalXYDataset, SimpleIntervalXYDataset2, SubSeriesDataset, TimePeriodValuesCollection, TimeSeriesCollection, TimeTableXYDataset, XYBarDataset, XYSeriesCollection
public interface XYDataset
extends SeriesDataset
An interface through which data in the form of (x, y) items can be accessed.

  • Method Summary

    Modifier and Type Method Description
    int getItemCount​(int series)
    Returns the number of items in a series.
    double getX​(int series, int item)
    Returns the x-value (as a double primitive) for an item within a series.
    Number getXValue​(int series, int item)
    Returns the x-value for an item within a series.
    double getY​(int series, int item)
    Returns the y-value (as a double primitive) for an item within a series.
    Number getYValue​(int series, int item)
    Returns the y-value for an item within a series.

    Methods inherited from interface org.jfree.data.Dataset

    addChangeListener, getGroup, removeChangeListener, setGroup

    Methods inherited from interface org.jfree.data.SeriesDataset

    getSeriesCount, getSeriesName

  • Method Details

    • getItemCount

      int getItemCount​(int series)
      Returns the number of items in a series.
      Parameters:
      series - the series (zero-based index).
      Returns:
      The item count.

    • getXValue

      Number getXValue​(int series, int item)
      Returns the x-value for an item within a series. The x-values may or may not be returned in ascending order, that is up to the class implementing the interface.
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The x-value (possibly null).

    • getX

      double getX​(int series, int item)
      Returns the x-value (as a double primitive) for an item within a series.
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The x-value.

    • getYValue

      Number getYValue​(int series, int item)
      Returns the y-value for an item within a series.
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      the y-value (possibly null).

    • getY

      double getY​(int series, int item)
      Returns the y-value (as a double primitive) for an item within a series.
      Parameters:
      series - the series (zero-based index).
      item - the item (zero-based index).
      Returns:
      The y-value.