Package org.palladiosimulator.solver.transformations

Class ExpressionToPDFWrapper

java.lang.Object

org.palladiosimulator.solver.transformations.ExpressionToPDFWrapper

public class ExpressionToPDFWrapper
extends Object

Wraps the actual content of an expression to allow computation with it. Only supports probability density function or double so far. Allows to access the expression as a PDF or to get the mean value.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.apache.log4j.Logger	LOGGER
protected static final org.palladiosimulator.pcm.stoex.api.StoExSerialiser	STOEX_SERIALISER

Constructor Summary

Constructors

Constructor	Description
ExpressionToPDFWrapper(de.uka.ipd.sdq.probfunction.ProbabilityDensityFunction pdf)
ExpressionToPDFWrapper(Double meanValue)

Method Summary

Modifier and Type	Method	Description
static ExpressionToPDFWrapper	createExpressionToPDFWrapper(de.uka.ipd.sdq.stoex.Expression rdExpression)	Can create a wrapper for ProbabilityFunctionLiterals and NumericLiterals.
Double	getMeanValue()
de.uka.ipd.sdq.probfunction.ProbabilityDensityFunction	getPDF()
Double	getStandardDeviation()
boolean	isOriginalPDF()	Returns whether this resource demand is a derived pdf (i.e.

Methods inherited from class java.lang.Object

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

Field Details

STOEX_SERIALISER

protected static final org.palladiosimulator.pcm.stoex.api.StoExSerialiser STOEX_SERIALISER

LOGGER

protected static final org.apache.log4j.Logger LOGGER

Constructor Details

ExpressionToPDFWrapper

public ExpressionToPDFWrapper(de.uka.ipd.sdq.probfunction.ProbabilityDensityFunction pdf)

ExpressionToPDFWrapper

public ExpressionToPDFWrapper(Double meanValue)

Method Details

createExpressionToPDFWrapper

public static ExpressionToPDFWrapper createExpressionToPDFWrapper(de.uka.ipd.sdq.stoex.Expression rdExpression)

Can create a wrapper for ProbabilityFunctionLiterals and NumericLiterals.

Parameters:

rdExpression -

Returns:

getPDF

public de.uka.ipd.sdq.probfunction.ProbabilityDensityFunction getPDF()

getMeanValue

public Double getMeanValue()

getStandardDeviation

public Double getStandardDeviation()

isOriginalPDF

public boolean isOriginalPDF()

Returns whether this resource demand is a derived pdf (i.e. it has been created using a mean value) or whether it is an original pdf (i.e. the mean value is derived).

Returns:

true if it has been created using #ResourceDemandWrapper(ParametricResourceDemand, ProbabilityDensityFunction), false if this has been created using #ResourceDemandWrapper(ParametricResourceDemand, Double).