Package io.patriot_framework.generator.dataFeed

Class ExpressionDataFeed

java.lang.Object

io.patriot_framework.generator.dataFeed.ExpressionDataFeed

All Implemented Interfaces:

DataFeed

public class ExpressionDataFeed
extends Object
implements DataFeed

Feed that uses Expression library to calculate data streems.

Constructor Summary

Constructors

Constructor	Description
ExpressionDataFeed(net.objecthunter.exp4j.Expression expression)

Method Summary

Modifier and Type	Method	Description
String	getLabel()	Returns label for DataFeed
Data	getNextValue(Object... params)	Returns value from DataFeed.
Data	getPreviousValue()	Returns last generated value from DataFeed.
void	setLabel(String label)	Sets label for DataFeed

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionDataFeed

public ExpressionDataFeed(net.objecthunter.exp4j.Expression expression)

Method Detail

getNextValue

public Data getNextValue(Object... params)

Description copied from interface: DataFeed

Returns value from DataFeed. This method is used to compute new data. Flexibility with number of parameters aims to provide freedom in implementation of whole DataFeed.

Specified by:

getNextValue in interface DataFeed

Parameters:

params - for DataFeed computing

Returns:

computed value

getPreviousValue

public Data getPreviousValue()

Description copied from interface: DataFeed

Returns last generated value from DataFeed. Important for easy comparison between new and previous values.

Specified by:

getPreviousValue in interface DataFeed

Returns:

last generated value

setLabel

public void setLabel(String label)

Description copied from interface: DataFeed

Sets label for DataFeed

Specified by:

setLabel in interface DataFeed

Parameters:

label - the label

getLabel

public String getLabel()

Description copied from interface: DataFeed

Returns label for DataFeed

Specified by:

getLabel in interface DataFeed

Returns:

label