org.jfree.data.time

Class TimeSeriesCollection

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.time.TimeSeriesCollection

All Implemented Interfaces:

java.beans.VetoableChangeListener, java.io.ObjectInputValidation, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, DomainInfo, Dataset, SeriesChangeListener, SeriesDataset, IntervalXYDataset, XYDataset, XYDomainInfo, XYRangeInfo

public class TimeSeriesCollection
extends AbstractIntervalXYDataset
implements XYDataset, IntervalXYDataset, DomainInfo, XYDomainInfo, XYRangeInfo, java.beans.VetoableChangeListener, java.io.Serializable

A collection of time series objects. This class implements the XYDataset interface, as well as the extended IntervalXYDataset interface. This makes it a convenient dataset for use with the XYPlot class.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List	data Storage for the time series.
private boolean	domainIsPointsInTime Deprecated. No longer used (as of 1.0.1).
private static long	serialVersionUID For serialization.
private java.util.Calendar	workingCalendar A working calendar (to recycle)
private TimePeriodAnchor	xPosition The point within each time period that is used for the X value when this collection is used as an XYDataset.

Constructor Summary

Constructors

Constructor and Description
TimeSeriesCollection() Constructs an empty dataset, tied to the default timezone.
TimeSeriesCollection(TimeSeries series) Constructs a dataset containing a single series (more can be added), tied to the default timezone.
TimeSeriesCollection(TimeSeries series, java.util.TimeZone zone) Constructs a dataset containing a single series (more can be added), tied to a specific timezone.
TimeSeriesCollection(java.util.TimeZone zone) Constructs an empty dataset, tied to a specific timezone.

Method Summary

Modifier and Type	Method and Description
void	addSeries(TimeSeries series) Adds a series to the collection and sends a DatasetChangeEvent to all registered listeners.
java.lang.Object	clone() Returns a clone of this time series collection.
boolean	equals(java.lang.Object obj) Tests this time series collection for equality with another object.
Range	getDomainBounds(boolean includeInterval) Returns the range of the values in this dataset's domain.
Range	getDomainBounds(java.util.List visibleSeriesKeys, boolean includeInterval) Returns the bounds of the domain values for the specified series.
boolean	getDomainIsPointsInTime() Deprecated. This flag is no longer used (as of 1.0.1).
double	getDomainLowerBound(boolean includeInterval) Returns the minimum x-value in the dataset.
DomainOrder	getDomainOrder() Returns the order of the domain values in this 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.
int	getItemCount(int series) Returns the number of items in the specified series.
Range	getRangeBounds(boolean includeInterval) Returns the bounds for the y-values in the dataset.
Range	getRangeBounds(java.util.List visibleSeriesKeys, Range xRange, boolean includeInterval) Returns the bounds for the y-values in the dataset.
java.util.List	getSeries() Returns a list of all the series in the collection.
TimeSeries	getSeries(java.lang.Comparable key) Returns the series with the specified key, or null if there is no such series.
TimeSeries	getSeries(int series) Returns a series.
int	getSeriesCount() Returns the number of series in the collection.
int	getSeriesIndex(java.lang.Comparable key) Returns the index of the series with the specified key, or -1 if no series has that key.
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.
int[]	getSurroundingItems(int series, long milliseconds) Returns the indices of the two data items surrounding a particular millisecond value.
java.lang.Number	getX(int series, int item) Returns the x-value for the specified series and item.
protected long	getX(RegularTimePeriod period) Returns the x-value for a time period.
TimePeriodAnchor	getXPosition() Returns the position within each time period that is used for the X value when the collection is used as an XYDataset.
double	getXValue(int series, int item) Returns the x-value (as a double primitive) for an item within a series.
java.lang.Number	getY(int series, int item) Returns the y-value for the specified series and item.
int	hashCode() Returns a hash code value for the object.
int	indexOf(TimeSeries series) Returns the index of the specified series, or -1 if that series is not present in the dataset.
void	removeAllSeries() Removes all the series from the collection and sends a DatasetChangeEvent to all registered listeners.
void	removeSeries(int index) Removes a series from the collection.
void	removeSeries(TimeSeries series) Removes the specified series from the collection and sends a DatasetChangeEvent to all registered listeners.
void	setDomainIsPointsInTime(boolean flag) Deprecated. This flag is no longer used, as of 1.0.1. The includeInterval flag in methods such as getDomainBounds(boolean) makes this unnecessary.
void	setXPosition(TimePeriodAnchor anchor) Sets the position within each time period that is used for the X values when the collection is used as an XYDataset, then sends a DatasetChangeEvent is sent to all registered listeners.
void	vetoableChange(java.beans.PropertyChangeEvent e) Receives notification that the key for one of the series in the collection has changed, and vetos it if the key is already present in the collection.

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

getEndXValue, getEndYValue, getStartXValue, getStartYValue

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

getYValue

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

indexOf, seriesChanged

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

addChangeListener, fireDatasetChanged, getGroup, getNotify, hasListener, notifyListeners, removeChangeListener, setGroup, setNotify, 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

getYValue

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

indexOf

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

addChangeListener, getGroup, removeChangeListener, setGroup

Field Detail

serialVersionUID

private static final long serialVersionUID

For serialization.

See Also:

Constant Field Values

data

private java.util.List data

Storage for the time series.

workingCalendar

private java.util.Calendar workingCalendar

A working calendar (to recycle)

xPosition

private TimePeriodAnchor xPosition

The point within each time period that is used for the X value when this collection is used as an XYDataset. This can be the start, middle or end of the time period.

domainIsPointsInTime

private boolean domainIsPointsInTime

Deprecated. No longer used (as of 1.0.1).

A flag that indicates that the domain is 'points in time'. If this flag is true, only the x-value is used to determine the range of values in the domain, the start and end x-values are ignored.

Constructor Detail

TimeSeriesCollection

public TimeSeriesCollection()

Constructs an empty dataset, tied to the default timezone.

TimeSeriesCollection

public TimeSeriesCollection(java.util.TimeZone zone)

Constructs an empty dataset, tied to a specific timezone.

Parameters:

zone - the timezone (null permitted, will use TimeZone.getDefault() in that case).

TimeSeriesCollection

public TimeSeriesCollection(TimeSeries series)

Constructs a dataset containing a single series (more can be added), tied to the default timezone.

Parameters:

series - the series (null permitted).

TimeSeriesCollection

public TimeSeriesCollection(TimeSeries series,
                            java.util.TimeZone zone)

Constructs a dataset containing a single series (more can be added), tied to a specific timezone.

Parameters:

series - a series to add to the collection (null permitted).

zone - the timezone (null permitted, will use TimeZone.getDefault() in that case).

Method Detail

getDomainIsPointsInTime

public boolean getDomainIsPointsInTime()

Deprecated. This flag is no longer used (as of 1.0.1).

Returns a flag that controls whether the domain is treated as 'points in time'. This flag is used when determining the max and min values for the domain. If true, then only the x-values are considered for the max and min values. If false, then the start and end x-values will also be taken into consideration.

Returns:

The flag.

setDomainIsPointsInTime

public void setDomainIsPointsInTime(boolean flag)

Deprecated. This flag is no longer used, as of 1.0.1. The includeInterval flag in methods such as getDomainBounds(boolean) makes this unnecessary.

Sets a flag that controls whether the domain is treated as 'points in time', or time periods.

Parameters:

flag - the flag.

getDomainOrder

public DomainOrder getDomainOrder()

Returns the order of the domain values in this dataset.

Specified by:

getDomainOrder in interface XYDataset

Overrides:

getDomainOrder in class AbstractXYDataset

Returns:

DomainOrder.ASCENDING

getXPosition

public TimePeriodAnchor getXPosition()

Returns the position within each time period that is used for the X value when the collection is used as an XYDataset.

Returns:

The anchor position (never null).

setXPosition

public void setXPosition(TimePeriodAnchor anchor)

Sets the position within each time period that is used for the X values when the collection is used as an XYDataset, then sends a DatasetChangeEvent is sent to all registered listeners.

Parameters:

anchor - the anchor position (null not permitted).

getSeries

public java.util.List getSeries()

Returns a list of all the series in the collection.

Returns:

The list (which is unmodifiable).

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.

indexOf

public int indexOf(TimeSeries series)

Returns the index of the specified series, or -1 if that series is not present in the dataset.

Parameters:

series - the series (null not permitted).

Returns:

The series index.

Since:

1.0.6

getSeries

public TimeSeries getSeries(int series)

Returns a series.

Parameters:

series - the index of the series (zero-based).

Returns:

The series.

getSeries

public TimeSeries getSeries(java.lang.Comparable key)

Returns the series with the specified key, or null if there is no such series.

Parameters:

key - the series key (null permitted).

Returns:

The series with the given key.

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 index of the series (zero-based).

Returns:

The key for a series.

getSeriesIndex

public int getSeriesIndex(java.lang.Comparable key)

Returns the index of the series with the specified key, or -1 if no series has that key.

Parameters:

key - the key (null not permitted).

Returns:

The index.

Since:

1.0.17

addSeries

public void addSeries(TimeSeries series)

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

Parameters:

series - the series (null not permitted).

removeSeries

public void removeSeries(TimeSeries series)

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

Parameters:

series - the series (null not permitted).

removeSeries

public void removeSeries(int index)

Removes a series from the collection.

Parameters:

index - the series index (zero-based).

removeAllSeries

public void removeAllSeries()

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

getItemCount

public int getItemCount(int series)

Returns the number of items in the specified series. This method is provided for convenience.

Specified by:

getItemCount in interface XYDataset

Parameters:

series - the series index (zero-based).

Returns:

The item count.

getXValue

public double getXValue(int series,
                        int item)

Returns the x-value (as a double primitive) for an item within a series.

Specified by:

getXValue in interface XYDataset

Overrides:

getXValue in class AbstractXYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The x-value.

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 value.

getX

protected long getX(RegularTimePeriod period)

Returns the x-value for a time period.

Parameters:

period - the time period (null not permitted).

Returns:

The x-value.

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 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 value.

getY

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

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

Specified by:

getY in interface XYDataset

Parameters:

series - the series (zero-based index).

item - the item (zero-based index).

Returns:

The value (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 value (possibly null).

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 - te series (zero-based index).

item - the item (zero-based index).

Returns:

The value (possibly null).

getSurroundingItems

public int[] getSurroundingItems(int series,
                                 long milliseconds)

Returns the indices of the two data items surrounding a particular millisecond value.

Parameters:

series - the series index.

milliseconds - the time.

Returns:

An array containing the (two) indices of the items surrounding the time.

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.

getDomainBounds

public Range getDomainBounds(java.util.List visibleSeriesKeys,
                             boolean includeInterval)

Returns the bounds of the domain values for the specified series.

Specified by:

getDomainBounds in interface XYDomainInfo

Parameters:

visibleSeriesKeys - a list of keys for the visible series.

includeInterval - include the x-interval?

Returns:

A range.

Since:

1.0.13

getRangeBounds

public Range getRangeBounds(boolean includeInterval)

Returns the bounds for the y-values in the dataset.

Parameters:

includeInterval - ignored for this dataset.

Returns:

The range of value in the dataset (possibly null).

Since:

1.0.15

getRangeBounds

public Range getRangeBounds(java.util.List visibleSeriesKeys,
                            Range xRange,
                            boolean includeInterval)

Returns the bounds for the y-values in the dataset.

Specified by:

getRangeBounds in interface XYRangeInfo

Parameters:

visibleSeriesKeys - the visible series keys.

xRange - the x-range (null not permitted).

includeInterval - ignored.

Returns:

The bounds.

Since:

1.0.14

vetoableChange

public void vetoableChange(java.beans.PropertyChangeEvent e)
                    throws java.beans.PropertyVetoException

Receives notification that the key for one of the series in the collection has changed, and vetos it if the key is already present in the collection.

Specified by:

vetoableChange in interface java.beans.VetoableChangeListener

Parameters:

e - the event.

Throws:

java.beans.PropertyVetoException

Since:

1.0.17

equals

public boolean equals(java.lang.Object obj)

Tests this time series collection for equality with another object.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the other object.

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

Returns:

The hashcode

clone

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

Returns a clone of this time series collection.

Overrides:

clone in class AbstractDataset

Returns:

A clone.

Throws:

java.lang.CloneNotSupportedException - if there is a problem cloning.