Package org.palladiosimulator.pcm.usagemodel

Interface Workload

All Superinterfaces:

org.eclipse.emf.cdo.CDOObject, org.eclipse.emf.cdo.common.id.CDOWithID, EObject, Notifier, PCMBaseClass, PCMClass

All Known Subinterfaces:

ClosedWorkload, OpenWorkload

All Known Implementing Classes:

ClosedWorkloadImpl, OpenWorkloadImpl, WorkloadImpl

public interface Workload
extends PCMBaseClass

A representation of the model object 'Workload'. A Workload specifies the usage intensity of a system, which relates to the number of users concurrently present in the system. The PCM usage model adopts this concept from classical queueing theory [123]. The specified workloads can directly be used in queueing networks or easily be mapped to markings in stochastic Petri nets. Workloads can either be open or closed. The algorithms used to analyse queueing networks differ depending on whether open or closed workloads are modelled [123]. Some special queueing networks can only be analysed given a particular workload type (open or closed). Notice, that it is possible to specify a usage model with open workload usage scenarios and closed workload usage scenarios at the same time. Open and closed workloads can be executed in parallel when analysing the model. [123] E. Lazowska, J. Zahorjan, G. Graham, and K. Sevcik, Quantitative System Performance. Prentice Hall, 1984.

The following features are supported:

• Usage Scenario Workload

See Also:

• UsagemodelPackage.getWorkload()

Generated class or method.

EMF model class or method.

abstract="true"

Field Summary

Fields

Modifier and Type	Field	Description
static final String	copyright

Method Summary

Modifier and Type	Method	Description
UsageScenario	getUsageScenario_Workload()	Returns the value of the 'Usage Scenario Workload' container reference.
void	setUsageScenario_Workload(UsageScenario value)	Sets the value of the 'Usage Scenario Workload' container reference.

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 org.eclipse.emf.common.notify.Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Field Details

copyright

static final String copyright

See Also:

• Constant Field Values

Generated class or method.

Method Details

getUsageScenario_Workload

UsageScenario getUsageScenario_Workload()

Returns the value of the 'Usage Scenario Workload' container reference. It is bidirectional and its opposite is 'Workload Usage Scenario'.

Returns:

the value of the 'Usage Scenario Workload' container reference.

See Also:

• setUsageScenario_Workload(UsageScenario)
• UsagemodelPackage.getWorkload_UsageScenario_Workload()
• UsageScenario.getWorkload_UsageScenario()

Generated class or method.

EMF model class or method.

opposite="workload_UsageScenario" required="true" transient="false" ordered="false"

setUsageScenario_Workload

void setUsageScenario_Workload(UsageScenario value)

Sets the value of the 'Usage Scenario Workload' container reference.

Parameters:

value - the new value of the 'Usage Scenario Workload' container reference.

See Also:

• getUsageScenario_Workload()

Generated class or method.