Package com.inductiveautomation.factorypmi.application.components.chart.easychart

Class AbstractCalculatedPenDatasource

java.lang.Object

com.inductiveautomation.factorypmi.application.components.chart.easychart.AbstractCalculatedPenDatasource

All Implemented Interfaces:

IPenDatasource

Direct Known Subclasses:

AbstractFunctionPenDatasource, ConstantPenDatasource

public class AbstractCalculatedPenDatasource
extends Object
implements IPenDatasource

Field Summary

Fields

Modifier and Type	Field	Description
protected PMIEasyChart	chart
protected Dataset	dataset
protected Set<PenDataset>	datasets
protected Date	endDate	The configured end date.
protected final LoggerEx	log
protected List<PenData>	pens
protected Date	startDate	The starting date of the chart.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractCalculatedPenDatasource()

Method Summary

Modifier and Type	Method	Description
void	addPen(PenData pen)	Adds a pen to this datasource.
Dataset	getDataset()	The underlying dataset that drives this datasource
protected long	getMillisRange(PenData source)	Returns the range of millis between the first and last points in the given pen dataset
int	getNumDatapoints()	Return the number of datapoints currently loaded in this source
void	initRefs(Map<String,PenData> allPens)	Gives the datasource a chance to install references to other pens
boolean	isZoomTracking()	True if this datasource should be restarted when the zoom level changes.
protected void	setDataset(Dataset dataset)
protected void	setDatasetLater(Dataset dataset)
void	shutdown()	Shuts this datasoure down, if it has re-occurring activity.
void	startup(PMIEasyChart chart)	Start this datasouce up.
protected void	warn(String msg)

Methods inherited from class java.lang.Object

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

Field Details

dataset

protected Dataset dataset

pens

protected List<PenData> pens

datasets

protected Set<PenDataset> datasets

chart

protected PMIEasyChart chart

startDate

protected Date startDate

The starting date of the chart. Set in startup(PMIEasyChart)

endDate

protected Date endDate

The configured end date. May be null - this means "up to current time". Set in startup(PMIEasyChart)

log

protected final LoggerEx log

Constructor Details

AbstractCalculatedPenDatasource

protected AbstractCalculatedPenDatasource()

Method Details

addPen

public void addPen(PenData pen)

Description copied from interface: IPenDatasource

Adds a pen to this datasource. All pens will be added before startup() is called for the first time.

Specified by:

addPen in interface IPenDatasource

getDataset

public Dataset getDataset()

Description copied from interface: IPenDatasource

The underlying dataset that drives this datasource

Specified by:

getDataset in interface IPenDatasource

setDataset

protected void setDataset(Dataset dataset)

setDatasetLater

protected void setDatasetLater(Dataset dataset)

getNumDatapoints

public int getNumDatapoints()

Description copied from interface: IPenDatasource

Return the number of datapoints currently loaded in this source

Specified by:

getNumDatapoints in interface IPenDatasource

getMillisRange

protected long getMillisRange(PenData source)

Returns the range of millis between the first and last points in the given pen dataset

initRefs

public void initRefs(Map<String,PenData> allPens)

Description copied from interface: IPenDatasource

Gives the datasource a chance to install references to other pens

Specified by:

initRefs in interface IPenDatasource

shutdown

public void shutdown()

Description copied from interface: IPenDatasource

Shuts this datasoure down, if it has re-occurring activity.

Specified by:

shutdown in interface IPenDatasource

startup

public void startup(PMIEasyChart chart)

Description copied from interface: IPenDatasource

Start this datasouce up. This should certainly mean that the data gets generated at least once, and possibly more based upon the chart's polling settings. May be called again after shutdown().

Specified by:

startup in interface IPenDatasource

warn

protected void warn(String msg)

isZoomTracking

public boolean isZoomTracking()

Description copied from interface: IPenDatasource

True if this datasource should be restarted when the zoom level changes.

Specified by:

isZoomTracking in interface IPenDatasource