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

Class SumDiffPenDatasource

java.lang.Object

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

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

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

All Implemented Interfaces:

IPenDatasource, EventListener, ChangeListener

public class SumDiffPenDatasource
extends AbstractFunctionPenDatasource

Filename - SumPensDatasource Author: Perry Arellano-Jones Year: 2014

This datasource adds or subtracts the value of two pens and returns a dataset of the result. It requires two pens to be specified, a 'driving' Pen and a 'secondary' pen. Results are derived by adding to or subtracting from to the driving Pen. Utilizes the PenAttribute#FUNCTION_PARAM to determine whether summation or negation is done on the driving pen.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SumDiffPenDatasource.SumDiffPenFunctionFactory

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DIFF
static final String	SUM

Fields inherited from class com.inductiveautomation.factorypmi.application.components.chart.easychart.AbstractFunctionPenDatasource

referencedPens

Fields inherited from class com.inductiveautomation.factorypmi.application.components.chart.easychart.AbstractCalculatedPenDatasource

chart, dataset, datasets, endDate, log, pens, startDate

Method Summary

Modifier and Type	Method	Description
protected Dataset	createDataset()	Called when the dataset needs to be re-calculated
void	initRefs(Map<String,PenData> allPens)	Gives the datasource a chance to install references to other pens

Methods inherited from class com.inductiveautomation.factorypmi.application.components.chart.easychart.AbstractFunctionPenDatasource

stateChanged

Methods inherited from class com.inductiveautomation.factorypmi.application.components.chart.easychart.AbstractCalculatedPenDatasource

addPen, getDataset, getMillisRange, getNumDatapoints, isZoomTracking, setDataset, setDatasetLater, shutdown, startup, warn

Methods inherited from class java.lang.Object

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

Field Details

SUM

public static final String SUM

See Also:

• Constant Field Values

DIFF

public static final String DIFF

See Also:

• Constant Field Values

Method Details

createDataset

protected Dataset createDataset()

Description copied from class: AbstractFunctionPenDatasource

Called when the dataset needs to be re-calculated

Specified by:

createDataset in class AbstractFunctionPenDatasource

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

Overrides:

initRefs in class AbstractFunctionPenDatasource