Package org.palladiosimulator.monitorrepository.map

Interface ExponentialSmoothing

All Superinterfaces:

org.eclipse.emf.cdo.CDOObject, org.eclipse.emf.cdo.common.id.CDOWithID, EObject, de.uka.ipd.sdq.identifier.Identifier, Mapper, Notifier

All Known Implementing Classes:

ExponentialSmoothingImpl, ExponentialSmoothingImplGen

public interface ExponentialSmoothing
extends Mapper

A representation of the model object 'Exponential Smoothing'. A special, stateful Mapper implementation which performs a (first order) exponential smoothing of a sequence of measurements.
That is, starting with an initial smoothed value x0 of zero, upon reception of a new measurement yk computes the weighted arithmetic mean xk=αyk+(1-α)xk-1 with fixed smoothing factor α in [0,1].

The following features are supported:

• Smoothing Factor
• Smoothed Value

See Also:

• MapPackage.getExponentialSmoothing()

Generated class or method.

EMF model class or method.

annotation="http://www.eclipse.org/emf/2002/Ecore constraints='alpha mapping'" annotation="http://www.eclipse.org/emf/2002/Ecore/OCL alpha='self.smoothingFactor >= 0 and self.smoothingFactor <=1' mapping='self.map.outputMetricDescription.id = self.map.measurementSpecification.metricDescription.id'"

Method Summary

Modifier and Type	Method	Description
UnaryOperator<org.palladiosimulator.measurementframework.MeasuringValue>	getMappingFunction()	Gets the mapping function which implements the (first order) exponential smoothing.
javax.measure.Measure<Double,javax.measure.quantity.Quantity>	getSmoothedValue()	Returns the value of the 'Smoothed Value' attribute.
double	getSmoothingFactor()	Returns the value of the 'Smoothing Factor' attribute.
boolean	isMetricNumericalBaseMetric(DiagnosticChain chain, Map<?,?> context)	Validator method to assert that the metric description of the associated measurement specification is a NumericalBaseMetricDescription.
void	setSmoothedValue(javax.measure.Measure<Double,javax.measure.quantity.Quantity> value)	Sets the value of the 'Smoothed Value' attribute.
void	setSmoothingFactor(double value)	Sets the value of the 'Smoothing Factor' attribute.

Methods inherited from interface org.eclipse.emf.cdo.CDOObject

cdoConflict, cdoDirectResource, cdoHistory, cdoID, cdoInvalid, cdoLockState, cdoPermission, cdoPrefetch, cdoReadLock, cdoReload, cdoResource, cdoRevision, cdoRevision, cdoState, cdoView, cdoWriteLock, cdoWriteOption

Methods inherited from interface org.eclipse.emf.ecore.EObject

eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eInvoke, eIsProxy, eIsSet, eResource, eSet, eUnset

Methods inherited from interface de.uka.ipd.sdq.identifier.Identifier

getId, setId

Methods inherited from interface org.palladiosimulator.monitorrepository.map.Mapper

getMap, setMap

Methods inherited from interface org.eclipse.emf.common.notify.Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Method Details

getSmoothingFactor

double getSmoothingFactor()

Returns the value of the 'Smoothing Factor' attribute. The default value is "0.5".

Returns:

the value of the 'Smoothing Factor' attribute.

See Also:

• setSmoothingFactor(double)
• MapPackage.getExponentialSmoothing_SmoothingFactor()

Generated class or method.

EMF model class or method.

default="0.5" required="true"

setSmoothingFactor

void setSmoothingFactor(double value)

Sets the value of the 'Smoothing Factor' attribute.

Parameters:

value - the new value of the 'Smoothing Factor' attribute.

See Also:

• getSmoothingFactor()

Generated class or method.

getSmoothedValue

javax.measure.Measure<Double,javax.measure.quantity.Quantity> getSmoothedValue()

Returns the value of the 'Smoothed Value' attribute. The default value is "".

Returns:

the value of the 'Smoothed Value' attribute.

See Also:

• setSmoothedValue(Measure)
• MapPackage.getExponentialSmoothing_SmoothedValue()

Generated class or method.

EMF model class or method.

default="" dataType="org.palladiosimulator.edp2.models.ExperimentData.EJSMeasure<org.eclipse.emf.ecore.EDoubleObject, org.palladiosimulator.metricspec.IJSQuantity>"

setSmoothedValue

void setSmoothedValue(javax.measure.Measure<Double,javax.measure.quantity.Quantity> value)

Sets the value of the 'Smoothed Value' attribute.

Parameters:

value - the new value of the 'Smoothed Value' attribute.

See Also:

• getSmoothedValue()

Generated class or method.

getMappingFunction

UnaryOperator<org.palladiosimulator.measurementframework.MeasuringValue> getMappingFunction()

Gets the mapping function which implements the (first order) exponential smoothing.

Specified by:

getMappingFunction in interface Mapper

Generated class or method.

EMF model class or method.

kind="operation" dataType="org.palladiosimulator.monitorrepository.map.util.Func<org.palladiosimulator.monitorrepository.map.util.MeasuringValue>"

isMetricNumericalBaseMetric

boolean isMetricNumericalBaseMetric(DiagnosticChain chain,
 Map<?,?> context)

Validator method to assert that the metric description of the associated measurement specification is a NumericalBaseMetricDescription.

Generated class or method.

EMF model class or method.