com.jrefinery.data
Class CombinedXYDataset

java.lang.Object
  com.jrefinery.data.AbstractDataset
      com.jrefinery.data.AbstractSeriesDataset
          com.jrefinery.data.CombinedXYDataset

All Implemented Interfaces:

CombinationDataset, Dataset, SeriesChangeListener, SeriesDataset, XYDataset

public class CombinedXYDataset
extends AbstractSeriesDataset
implements XYDataset, CombinationDataset

This class can combine XYDatasets, HighLowDatasets and IntervalXYDatasets together exposing the union of all the series under one Dataset. This is required when using a CombinedPlot with a combination of XYPlots, HighLowPlots, TimeSeriesPlot's and VerticalXYBarPlots.

Author:

Bill Kelemen (bill@kelemen-usa.com)

See Also:

com.jrefinery.chart.CombinedPlot

Field Summary

Fields inherited from class com.jrefinery.data.AbstractDataset

listeners

Constructor Summary

CombinedXYDataset()
Default constructor for an empty combination.

CombinedXYDataset(SeriesDataset[] data)
Creates a CombinedDataset initialized with an array of SeriesDatasets.

Method Summary

void	add(SeriesDataset data) Adds one SeriesDataset to the combination.
void	add(SeriesDataset[] data) Adds an array of SeriesDataset's to the combination.
void	add(SeriesDataset data, int series) Adds one series from a SeriesDataset to the combination.
void	addXYData(int series, java.lang.Object xObject, java.lang.Object yObject, int n)
java.lang.Object	get(int no)
int	getChildPosition(Dataset child)
int	getItemCount(int series) Returns the number of items in a series.
int[]	getMap() Returns a map or indirect indexing form our series into parent's series.
SeriesDataset	getParent() Returns the parent Dataset of this combination.
int	getSeriesCount() Returns the number of series in the dataset.
java.lang.String	getSeriesName(int series) Returns the name of a series.
java.lang.Number	getXValue(int series, int item) Returns the X-value for the specified series and item.
java.lang.Number	getYValue(int series, int item) Returns the Y-value for the specified series and item.

Methods inherited from class com.jrefinery.data.AbstractSeriesDataset

getLegendItemCount, getLegendItemLabels, seriesChanged

Methods inherited from class com.jrefinery.data.AbstractDataset

addChangeListener, fireDatasetChanged, notifyListeners, removeChangeListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.jrefinery.data.Dataset

addChangeListener, removeChangeListener

Constructor Detail

CombinedXYDataset

public CombinedXYDataset()

Default constructor for an empty combination.

CombinedXYDataset

public CombinedXYDataset(SeriesDataset[] data)

Creates a CombinedDataset initialized with an array of SeriesDatasets.

Parameters:

data - Array of SeriesDataset that contains the SeriesDatasets to combine.

Method Detail

add

public void add(SeriesDataset data)

Adds one SeriesDataset to the combination. Listeners are notified of the change.

Parameters:

data - SeriesDataset to add.

add

public void add(SeriesDataset[] data)

Adds an array of SeriesDataset's to the combination. Listeners are notified of the change.

Parameters:

data - Array of SeriesDataset to add

add

public void add(SeriesDataset data,
                int series)

Adds one series from a SeriesDataset to the combination. Listeners are notified of the change.

Parameters:

data - SeriesDataset where series is contained

series - to add

addXYData

public void addXYData(int series,
                      java.lang.Object xObject,
                      java.lang.Object yObject,
                      int n)

getSeriesCount

public int getSeriesCount()

Returns the number of series in the dataset.

Specified by:

getSeriesCount in interface SeriesDataset

Specified by:

getSeriesCount in class AbstractSeriesDataset

Returns:

The number of series in the dataset.

getSeriesName

public java.lang.String getSeriesName(int series)

Returns the name of a series.

Specified by:

getSeriesName in interface SeriesDataset

Specified by:

getSeriesName in class AbstractSeriesDataset

Parameters:

series - The series (zero-based index).

getXValue

public java.lang.Number getXValue(int series,
                                  int item)

Returns the X-value for the specified series and item.

Specified by:

getXValue in interface XYDataset

Parameters:

series - The index of the series of interest (zero-based);

item - The index of the item of interest (zero-based).

Returns:

The x-value for an item within a series.

Throws:

java.lang.ClassCastException - if the series if not from a XYDataset

getYValue

public java.lang.Number getYValue(int series,
                                  int item)

Returns the Y-value for the specified series and item.

Specified by:

getYValue in interface XYDataset

Parameters:

series - The index of the series of interest (zero-based);

item - The index of the item of interest (zero-based).

Returns:

The y-value for an item within a series.

Throws:

java.lang.ClassCastException - if the series if not from a XYDataset

getItemCount

public int getItemCount(int series)

Returns the number of items in a series.

Specified by:

getItemCount in interface XYDataset

Parameters:

series - The index of the series of interest (zero-based);

Returns:

The number of items within a series.

Throws:

java.lang.ClassCastException - if the series if not from a XYDataset

getParent

public SeriesDataset getParent()

Returns the parent Dataset of this combination. If there is more than one parent, or a child is found that is not a CombinationDataset, then returns null.

Specified by:

getParent in interface CombinationDataset

getMap

public int[] getMap()

Returns a map or indirect indexing form our series into parent's series. Prior to calling this method, the client should check getParent() to make sure the CombinationDataset uses the same parent. If not, the map returned by this method will be invalid or null.

Specified by:

getMap in interface CombinationDataset

See Also:

getParent()

getChildPosition

public int getChildPosition(Dataset child)

get

public java.lang.Object get(int no)