org.jfree.data.xy
Class DefaultTableXYDataset

java.lang.Object
  org.jfree.data.general.AbstractDataset
      org.jfree.data.general.AbstractSeriesDataset
          org.jfree.data.xy.AbstractXYDataset
              org.jfree.data.xy.AbstractIntervalXYDataset
                  org.jfree.data.xy.DefaultTableXYDataset

All Implemented Interfaces:

java.io.ObjectInputValidation, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, DomainInfo, Dataset, SeriesChangeListener, SeriesDataset, IntervalXYDataset, TableXYDataset, XYDataset, org.jfree.util.PublicCloneable

public class DefaultTableXYDataset
extends AbstractIntervalXYDataset
implements TableXYDataset, IntervalXYDataset, DomainInfo, org.jfree.util.PublicCloneable

An XYDataset where every series shares the same x-values (required for generating stacked area charts).

See Also:

Serialized Form

Constructor Summary

DefaultTableXYDataset()
Creates a new empty dataset.

DefaultTableXYDataset(boolean autoPrune)
Creates a new empty dataset.

Method Summary

void	addSeries(XYSeries series) Adds a series to the collection and sends a DatasetChangeEvent to all registered listeners.
protected boolean	canPrune(java.lang.Number x) Returns true if all the y-values for the specified x-value are null and false otherwise.
java.lang.Object	clone() Returns an independent copy of this dataset.
boolean	equals(java.lang.Object obj) Tests this collection for equality with an arbitrary object.
Range	getDomainBounds(boolean includeInterval) Returns the range of the values in this dataset's domain.
double	getDomainLowerBound(boolean includeInterval) Returns the minimum x-value in the dataset.
double	getDomainUpperBound(boolean includeInterval) Returns the maximum x-value in the dataset.
java.lang.Number	getEndX(int series, int item) Returns the ending X value for the specified series and item.
java.lang.Number	getEndY(int series, int item) Returns the ending Y value for the specified series and item.
double	getIntervalPositionFactor() Returns the interval position factor.
double	getIntervalWidth() returns the full interval width.
int	getItemCount() Returns the number of x values in the dataset.
int	getItemCount(int series) Returns the number of items in the specified series.
XYSeries	getSeries(int series) Returns a series.
int	getSeriesCount() Returns the number of series in the collection.
java.lang.Comparable	getSeriesKey(int series) Returns the key for a series.
java.lang.Number	getStartX(int series, int item) Returns the starting X value for the specified series and item.
java.lang.Number	getStartY(int series, int item) Returns the starting Y value for the specified series and item.
java.lang.Number	getX(int series, int item) Returns the x-value for the specified series and item.
java.lang.Number	getY(int series, int index) Returns the y-value for the specified series and item.
int	hashCode() Returns a hash code.
boolean	isAutoPrune() Returns the flag that controls whether or not x-values are removed from the dataset when the corresponding y-values are all null.
boolean	isAutoWidth() Returns whether the interval width is automatically calculated or not.
void	prune() Removes all x-values for which all the y-values are null.
void	removeAllSeries() Removes all the series from the collection and sends a DatasetChangeEvent to all registered listeners.
void	removeAllValuesForX(java.lang.Number x) Removes the items from all series for a given x value.
void	removeSeries(int series) Removes a series from the collection and sends a DatasetChangeEvent to all registered listeners.
void	removeSeries(XYSeries series) Removes a series from the collection and sends a DatasetChangeEvent to all registered listeners.
void	seriesChanged(SeriesChangeEvent event) This method receives notification when a series belonging to the dataset changes.
void	setAutoWidth(boolean b) Sets the flag that indicates whether the interval width is automatically calculated or not.
void	setIntervalPositionFactor(double d) Sets the interval position factor.
void	setIntervalWidth(double d) Sets the interval width to a fixed value, and sends a DatasetChangeEvent to all registered listeners.
void	updateXPoints() Updates the x-values for all the series in the dataset.

Methods inherited from class org.jfree.data.xy.AbstractIntervalXYDataset

getEndXValue, getEndYValue, getStartXValue, getStartYValue

Methods inherited from class org.jfree.data.xy.AbstractXYDataset

getDomainOrder, getXValue, getYValue

Methods inherited from class org.jfree.data.general.AbstractSeriesDataset

indexOf

Methods inherited from class org.jfree.data.general.AbstractDataset

addChangeListener, fireDatasetChanged, getGroup, hasListener, notifyListeners, removeChangeListener, setGroup, validateObject

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jfree.data.xy.IntervalXYDataset

getEndXValue, getEndYValue, getStartXValue, getStartYValue

Methods inherited from interface org.jfree.data.xy.XYDataset

getDomainOrder, getXValue, getYValue

Methods inherited from interface org.jfree.data.general.SeriesDataset

indexOf

Methods inherited from interface org.jfree.data.general.Dataset

addChangeListener, getGroup, removeChangeListener, setGroup

Constructor Detail

DefaultTableXYDataset

public DefaultTableXYDataset()

Creates a new empty dataset.

DefaultTableXYDataset

public DefaultTableXYDataset(boolean autoPrune)

Creates a new empty dataset.

Parameters:

autoPrune - a flag that controls whether or not x-values are removed whenever the corresponding y-values are all null.

Method Detail

isAutoPrune

public boolean isAutoPrune()

Returns the flag that controls whether or not x-values are removed from the dataset when the corresponding y-values are all null.

Returns:

A boolean.

addSeries

public void addSeries(XYSeries series)

Adds a series to the collection and sends a DatasetChangeEvent to all registered listeners. The series should be configured to NOT allow duplicate x-values.

Parameters:

series - the series (null not permitted).

updateXPoints

public void updateXPoints()

Updates the x-values for all the series in the dataset.

getSeriesCount

public int getSeriesCount()

Returns the number of series in the collection.

Specified by:

getSeriesCount in interface SeriesDataset

Specified by:

getSeriesCount in class AbstractSeriesDataset

Returns:

The series count.

getItemCount

public int getItemCount()

Returns the number of x values in the dataset.

Specified by:

getItemCount in interface TableXYDataset

Returns:

The number of x values in the dataset.

getSeries

public XYSeries getSeries(int series)

Returns a series.

Parameters:

series - the series (zero-based index).

Returns:

The series (never null).

getSeriesKey

public java.lang.Comparable getSeriesKey(int series)

Returns the key for a series.

Specified by:

getSeriesKey in interface SeriesDataset

Specified by:

getSeriesKey in class AbstractSeriesDataset

Parameters:

series - the series (zero-based index).

Returns:

The key for a 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 series (zero-based index).

Returns:

The number of items in the specified series.

getX

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

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

Specified by:

getX in interface XYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The x-value for the specified series and item.

getStartX

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

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

Specified by:

getStartX in interface IntervalXYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The starting X value.

getEndX

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

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

Specified by:

getEndX in interface IntervalXYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The ending X value.

getY

public java.lang.Number getY(int series,
                             int index)

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

Specified by:

getY in interface XYDataset

Parameters:

series - the series (zero-based index).

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

Returns:

The y-value for the specified series and item (possibly null).

getStartY

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

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

Specified by:

getStartY in interface IntervalXYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The starting Y value.

getEndY

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

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

Specified by:

getEndY in interface IntervalXYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The ending Y value.

removeAllSeries

public void removeAllSeries()

Removes all the series from the collection and sends a DatasetChangeEvent to all registered listeners.

removeSeries

public void removeSeries(XYSeries series)

Removes a series from the collection and sends a DatasetChangeEvent to all registered listeners.

Parameters:

series - the series (null not permitted).

removeSeries

public void removeSeries(int series)

Removes a series from the collection and sends a DatasetChangeEvent to all registered listeners.

Parameters:

series - the series (zero based index).

removeAllValuesForX

public void removeAllValuesForX(java.lang.Number x)

Removes the items from all series for a given x value.

Parameters:

x - the x-value.

canPrune

protected boolean canPrune(java.lang.Number x)

Returns true if all the y-values for the specified x-value are null and false otherwise.

Parameters:

x - the x-value.

Returns:

A boolean.

prune

public void prune()

Removes all x-values for which all the y-values are null.

seriesChanged

public void seriesChanged(SeriesChangeEvent event)

This method receives notification when a series belonging to the dataset changes. It responds by updating the x-points for the entire dataset and sending a DatasetChangeEvent to all registered listeners.

Specified by:

seriesChanged in interface SeriesChangeListener

Overrides:

seriesChanged in class AbstractSeriesDataset

Parameters:

event - information about the change.

equals

public boolean equals(java.lang.Object obj)

Tests this collection for equality with an arbitrary object.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

A hash code.

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Returns an independent copy of this dataset.

Specified by:

clone in interface org.jfree.util.PublicCloneable

Overrides:

clone in class AbstractDataset

Returns:

A clone.

Throws:

java.lang.CloneNotSupportedException - if there is some reason that cloning cannot be performed.

getDomainLowerBound

public double getDomainLowerBound(boolean includeInterval)

Returns the minimum x-value in the dataset.

Specified by:

getDomainLowerBound in interface DomainInfo

Parameters:

includeInterval - a flag that determines whether or not the x-interval is taken into account.

Returns:

The minimum value.

getDomainUpperBound

public double getDomainUpperBound(boolean includeInterval)

Returns the maximum x-value in the dataset.

Specified by:

getDomainUpperBound in interface DomainInfo

Parameters:

includeInterval - a flag that determines whether or not the x-interval is taken into account.

Returns:

The maximum value.

getDomainBounds

public Range getDomainBounds(boolean includeInterval)

Returns the range of the values in this dataset's domain.

Specified by:

getDomainBounds in interface DomainInfo

Parameters:

includeInterval - a flag that determines whether or not the x-interval is taken into account.

Returns:

The range.

getIntervalPositionFactor

public double getIntervalPositionFactor()

Returns the interval position factor.

Returns:

The interval position factor.

setIntervalPositionFactor

public void setIntervalPositionFactor(double d)

Sets the interval position factor. Must be between 0.0 and 1.0 inclusive. If the factor is 0.5, the gap is in the middle of the x values. If it is lesser than 0.5, the gap is farther to the left and if greater than 0.5 it gets farther to the right.

Parameters:

d - the new interval position factor.

getIntervalWidth

public double getIntervalWidth()

returns the full interval width.

Returns:

The interval width to use.

setIntervalWidth

public void setIntervalWidth(double d)

Sets the interval width to a fixed value, and sends a DatasetChangeEvent to all registered listeners.

Parameters:

d - the new interval width (must be > 0).

isAutoWidth

public boolean isAutoWidth()

Returns whether the interval width is automatically calculated or not.

Returns:

A flag that determines whether or not the interval width is automatically calculated.

setAutoWidth

public void setAutoWidth(boolean b)

Sets the flag that indicates whether the interval width is automatically calculated or not.

Parameters:

b - a boolean.