net.clackrouter.chart
Class ClackOccData

java.lang.Object
  AbstractSeriesDataset
      net.clackrouter.chart.ClackOccData

All Implemented Interfaces:

java.io.Serializable

public class ClackOccData
extends AbstractSeriesDataset
implements java.io.Serializable

Represents a collection of (x,y) values that contain instanteneuous and average queue size. This collection should be constantly updated by a box and it is used by a chart to read the (x,y) values and display them. When a new (x,y) value is added to the dataset, it fires an event that informs a chart to update itself.

Field Summary

static java.awt.Color[]	colors
static int	MIN_DRAW_INTERVAL

Constructor Summary

ClackOccData()
Constructs queue size dataset.

Method Summary

void	addXYValue(java.lang.String key, java.lang.Number x, java.lang.Number y) Adds the supplied (x,y) tuple to the instantaneous series, calculates the running average and adds (x, average) tuple to the average series.
DomainOrder	getDomainOrder()
int	getItemCount(int series) Returns the number of items in the specified series.
int	getSeriesCount() Returns the number of series in the data source.
java.lang.String	getSeriesKey(int series) Returns the name of the series.
java.lang.Number	getX(int series_int, int item) Returns the x value for the specified series and item.
double	getXValue(int series, int item)
java.lang.Number	getY(int series_int, int item) Returns the y value for the specified series and item.
double	getYValue(int series, int item)
void	remove_all_with_x_lessthan(java.lang.String key, double x_thresh) Useful for timing out values older than a certain x value
void	removeEverySeries()
void	removeSeries(java.lang.String key)
void	setRenderer(StandardXYItemRenderer r)
void	updateRealtime(boolean updateRealtime) Specifies if the dataset should notify listeners of changes.

Methods inherited from class java.lang.Object

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

Field Detail

colors

public static java.awt.Color[] colors

MIN_DRAW_INTERVAL

public static int MIN_DRAW_INTERVAL

Constructor Detail

ClackOccData

public ClackOccData()

Constructs queue size dataset.

Method Detail

removeSeries

public void removeSeries(java.lang.String key)

setRenderer

public void setRenderer(StandardXYItemRenderer r)

getDomainOrder

public DomainOrder getDomainOrder()

addXYValue

public void addXYValue(java.lang.String key,
                       java.lang.Number x,
                       java.lang.Number y)

Adds the supplied (x,y) tuple to the instantaneous series, calculates the running average and adds (x, average) tuple to the average series.

Parameters:

x - Domain value, can be absolute or relative time

y - Number of packets in the queue

remove_all_with_x_lessthan

public void remove_all_with_x_lessthan(java.lang.String key,
                                       double x_thresh)

Useful for timing out values older than a certain x value

Parameters:

key -

x_thresh -

getX

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

Returns the x value for the specified series and item. Series are numbered 0, 1, ...

Parameters:

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

item - The index (zero-based) of the required item

Returns:

The x value for the specified series and item

getXValue

public double getXValue(int series,
                        int item)

getY

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

Returns the y value for the specified series and item. Series are numbered 0, 1, ...

Parameters:

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

item - The index (zero-based) of the required item

Returns:

The y value for the specified series and item

getYValue

public double getYValue(int series,
                        int item)

getSeriesCount

public int getSeriesCount()

Returns the number of series in the data source.

Returns:

The number of series in the data source.

getSeriesKey

public java.lang.String getSeriesKey(int series)

Returns the name of the series.

Parameters:

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

Returns:

The name of the series

getItemCount

public int getItemCount(int series)

Returns the number of items in the specified series.

Parameters:

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

Returns:

The number of items in the specified series

updateRealtime

public void updateRealtime(boolean updateRealtime)

Specifies if the dataset should notify listeners of changes. This method should be called with updateRealtime = true when the corresponding chart is displayed to the user. Otherwise updateRealtime should be reset to false to reduce processing.

Parameters:

updateRealtime - True if changes should be immediately reflected in the dataset

removeEverySeries

public void removeEverySeries()