java.lang.Object
- jsl.simulation.ModelElement
- - jsl.simulation.SchedulingElement
  - - jsl.modeling.elements.station.Station
    - - jsl.modeling.elements.station.SingleQueueStation

All Implemented Interfaces:

ReceiveQObjectIfc, ObservableIfc, GetNameIfc, IdentityIfc
```
public class SingleQueueStation
extends Station
```
Models a service station with a resource that has a single queue to hold waiting customers. Customers can only use 1 unit of the resource while in service.

Nested Class Summary
- Nested classes/interfaces inherited from class jsl.simulation.ModelElement
  ModelElement.EventBuilderIfc<T>, ModelElement.EventScheduler<T>, ModelElement.ModelElementComparator, ModelElement.RequestBuilder, ModelElement.RequestDurationIfc, ModelElement.RequestTimeIfc, ModelElement.RequestUsingIfc, ModelElement.TimedUpdateEventAction, ModelElement.TimeUnitIfc<T>, ModelElement.WarmUpEventAction

Field Summary

Fields
Modifier and Type Field Description

protected TimeWeighted myNS

protected SResource myResource

protected Queue<QObject> myWaitingQ
- Fields inherited from class jsl.simulation.ModelElement
  AFTER_EXPERIMENT, AFTER_REPLICATION, BEFORE_EXPERIMENT, BEFORE_REPLICATION, CONDITIONAL_ACTION_REGISTRATION, DEFAULT_TIMED_EVENT_PRIORITY, INITIALIZED, MONTE_CARLO, myAfterExperimentOption, myAfterReplicationOption, myBeforeExperimentOption, myBeforeReplicationOption, myInitializationOption, myLengthOfWarmUp, myModelElements, myMonteCarloOption, myObservableComponent, myReplicationEndedOption, myTimedUpdateActionListener, myTimedUpdateEvent, myTimedUpdateInterval, myTimedUpdateOption, myTimedUpdatePriority, myWarmUpActionListener, myWarmUpEvent, myWarmUpIndicator, myWarmUpOption, myWarmUpPriority, NONE, REMOVED_FROM_MODEL, REPLICATION_ENDED, TIME_UNIT_DAY, TIME_UNIT_HOUR, TIME_UNIT_MILLISECOND, TIME_UNIT_MINUTE, TIME_UNIT_SECOND, TIME_UNIT_WEEK, TIMED_UPDATE, UPDATE, WARMUP

Constructor Summary

Constructors
Constructor	Description
`SingleQueueStation(ModelElement parent)`	Uses a resource with capacity 1 and service time Constant.ZERO
`SingleQueueStation(ModelElement parent, java.lang.String name)`	Uses a resource with capacity 1 and service time Constant.ZERO
`SingleQueueStation(ModelElement parent, SResource resource)`	No sender is provided.
`SingleQueueStation(ModelElement parent, SResource resource, GetValueIfc sd)`	No sender is provided.
`SingleQueueStation(ModelElement parent, SResource resource, GetValueIfc sd, java.lang.String name)`	No sender is provided.
`SingleQueueStation(ModelElement parent, SResource resource, GetValueIfc sd, SendQObjectIfc sender, java.lang.String name)`
`SingleQueueStation(ModelElement parent, GetValueIfc sd)`	Uses a resource with capacity 1
`SingleQueueStation(ModelElement parent, GetValueIfc sd, java.lang.String name)`	Uses a resource with capacity 1
`SingleQueueStation(ModelElement parent, GetValueIfc sd, SendQObjectIfc sender, java.lang.String name)`	Default resource of capacity 1 is used

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`addQueueListener(QueueListenerIfc<QObject> listener)`	Adds a QueueListenerIfc to the underlying queue
`void`	`changeDiscipline(Queue.Discipline discipline)`
`int`	`getCapacity()`	The capacity of the resource.
`double`	`getFractionBusy()`	Fraction of the capacity that is busy.
`Queue.Discipline`	`getInitialDiscipline()`
`int`	`getInitialResourceCapacity()`	The initial capacity of the resource at the station
`StatisticAccessorIfc`	`getNBAcrossReplicationStatistic()`	Across replication statistics on the number busy servers
`StatisticAccessorIfc`	`getNSAcrossReplicationStatistic()`	Across replication statistics on the number in system
`WeightedStatisticIfc`	`getNSWithinReplicationStatistic()`	Within replication statistics on the number in system
`int`	`getNumberInQueue()`	The current number in the queue
`int`	`getNumberInStation()`	The current number in the station (in queue + in service)
`int`	`getNumBusyServers()`	Current number of busy servers
`java.util.Optional<QueueResponse<QObject>>`	`getQueueResponses()`
`GetValueIfc`	`getServiceTime()`	The object used to determine the service time when not using the QObject option
`protected double`	`getServiceTime(QObject customer)`
`boolean`	`getUseQObjectServiceTimeOption()`	Whether or not the station uses the QObject to determine the service time
`protected void`	`initialize()`	This method should be overridden by subclasses that need actions performed to initialize prior to a replication.
`boolean`	`isQueueEmpty()`	Whether the queue is empty
`boolean`	`isQueueNotEmpty()`	Whether the queue is not empty
`boolean`	`isResourceAvailable()`
`void`	`receive(QObject customer)`
`boolean`	`removeQueueListener(QueueListenerIfc<QObject> listener)`	Removes a QueueListenerIfc from the underlying queue
`protected void`	`serveNext()`	Called to determine which waiting QObject will be served next Determines the next customer, seizes the resource, and schedules the end of the service.
`void`	`setInitialCapacity(int capacity)`	Sets the initial capacity of the station's resource
`void`	`setInitialDiscipline(Queue.Discipline discipline)`
`void`	`setServiceTime(GetValueIfc st)`	If the service time is null, it is assumed to be zero
`void`	`setUseQObjectServiceTimeOption(boolean option)`	Tells the station to use the QObject to determine the service time

Methods inherited from class jsl.modeling.elements.station.Station
getNextReceiver, getSender, send, setNextReceiver, setSender

Methods inherited from class jsl.simulation.SchedulingElement
cancelEvent, rescheduleEvent, rescheduleEvent, rescheduleEvent, rescheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent, scheduleEvent

Methods inherited from class jsl.simulation.ModelElement
addObserver, addObserverToModelElements, afterExperiment, afterExperiment_, afterReplication, afterReplication_, asString, beforeExperiment, beforeExperiment_, beforeReplication, beforeReplication_, buildEventGenerator, cancelTimedUpdateEvent, cancelWarmUpEvent, changeParentModelElement, checkForAfterExperiment, checkForAfterReplication, checkForBeforeExperiment, checkForBeforeReplication, checkForConditionalActionRegistration, checkForInitialize, checkForMonteCarlo, checkForRemoveFromModel, checkForReplicationEnded, checkForTimedUpdate, checkForUpdate, checkForWarmUp, checkObserverState, checkWarmUpOption, clearModelElementObservers, contains, countObservers, createEntity, createEntity, createQObject, day, deleteObserver, deleteObserverFromModelElements, deleteObservers, findModelElementWithWarmUpEvent, getAfterExperimentOption, getAfterReplicationOption, getAllCounters, getAllModelElements, getAllRandomElements, getAllResponseVariables, getAllVariables, getBeforeExperimentOption, getBeforeReplicationOption, getChildModelElementIterator, getCurrentReplicationNumber, getDefaultEntityType, getExecutive, getExperiment, getId, getInitializationOption, getInitializationOrderAsString, getLeftPreOrderTraversalCount, getLengthOfWarmUp, getModel, getModelElementCompartor, getModelElementsAsString, getModelElementsAsString, getModelElementsAsString, getMonteCarloOption, getName, getNumberOfModelElements, getObserverState, getParentModelElement, getPreviousObserverState, getReplicationEndedOption, getRightPreOrderTraversalCount, getSimulation, getSpatialModel, getStringLabel, getThisElementsCounters, getThisElementsModelElements, getThisElementsRandomVariables, getThisElementsResponseVariables, getThisElementsVariables, getTime, getTimedUpdateInterval, getTimedUpdateOption, getUpdateNotificationFlag, getVariable, getWarmUpEventTime, getWarmUpOption, hour, indent, initialize_, isTimedUpdateEventScheduled, isWarmedUp, isWarmUpEventScheduled, isWarmUpScheduled, millisecond, minute, montecarlo, montecarlo_, notifyAfterExperimentObservers, notifyAfterReplicationObservers, notifyBeforeExperimentObservers, notifyBeforeReplicationObservers, notifyConditionalActionRegistrationObservers, notifyInitializationObservers, notifyMonteCarloObservers, notifyObservers, notifyObservers, notifyRemovingFromModelObservers, notifyReplicationEndedObservers, notifyTimedUpdateObservers, notifyUpdateObservers, notifyWarmUpObservers, registerConditionalActions, registerConditionalActions_, removedFromModel, removeFromModel, replicationEnded, replicationEnded_, schedule, second, seize, setAfterExperimentOption, setAfterExperimentOptionForModelElements, setAfterReplicationOption, setAfterReplicationOptionForModelElements, setBeforeExperimentOption, setBeforeExperimentOptionForModelElements, setBeforeReplicationOption, setBeforeReplicationOptionForModelElements, setInitializationOption, setInitializationOptionForModelElements, setLengthOfWarmUp, setModel, setMonteCarloOption, setMonteCarloOptionForModelElements, setName, setObserverState, setParentModelElement, setReplicationEndedOption, setReplicationEndedOptionForModelElements, setSpatialModel, setStringLabel, setTimedUpdateInterval, setTimedUpdateOption, setTimedUpdateOptionForModelElements, setUpdateNotificationFlag, setWarmUpOption, setWarmUpOptionForModelElements, stopExecutive, stopExecutive, timedUpdate, timedUpdate_, toString, update, useControls, warmUp, warmUp_, week

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - myWaitingQ
```
protected final Queue<QObject> myWaitingQ
```
  - myNS
```
protected final TimeWeighted myNS
```
  - myResource
```
protected final SResource myResource
```
- Constructor Detail
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent)
```
    Uses a resource with capacity 1 and service time Constant.ZERO
    
    Parameters:
    
    parent -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          GetValueIfc sd)
```
    Uses a resource with capacity 1
    
    Parameters:
    
    parent -
    
    sd -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          java.lang.String name)
```
    Uses a resource with capacity 1 and service time Constant.ZERO
    
    Parameters:
    
    parent -
    
    name -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          GetValueIfc sd,
                          java.lang.String name)
```
    Uses a resource with capacity 1
    
    Parameters:
    
    parent -
    
    sd -
    
    name -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          SResource resource)
```
    No sender is provided.
    
    Parameters:
    
    parent -
    
    resource -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          SResource resource,
                          GetValueIfc sd)
```
    No sender is provided.
    
    Parameters:
    
    parent -
    
    resource -
    
    sd -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          SResource resource,
                          GetValueIfc sd,
                          java.lang.String name)
```
    No sender is provided.
    
    Parameters:
    
    parent -
    
    resource -
    
    sd -
    
    name -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          GetValueIfc sd,
                          SendQObjectIfc sender,
                          java.lang.String name)
```
    Default resource of capacity 1 is used
    
    Parameters:
    
    parent -
    
    sd -
    
    sender -
    
    name -
  - SingleQueueStation
```
public SingleQueueStation(ModelElement parent,
                          SResource resource,
                          GetValueIfc sd,
                          SendQObjectIfc sender,
                          java.lang.String name)
```
    Parameters:
    
    parent -
    
    resource -
    
    sd - Represents the time using the resource
    
    sender - handles sending to next
    
    name -
- Method Detail
  - initialize
```
protected void initialize()
```
    Description copied from class: ModelElement
    
    This method should be overridden by subclasses that need actions performed to initialize prior to a replication. It is called once before each replication occurs if the model element wants initialization. It is called after beforeReplication() is called
    
    Overrides:
    
    initialize in class ModelElement
  - getServiceTime
```
protected double getServiceTime(QObject customer)
```
  - serveNext
```
protected void serveNext()
```
    Called to determine which waiting QObject will be served next Determines the next customer, seizes the resource, and schedules the end of the service.
  - receive
```
public void receive(QObject customer)
```
  - getQueueResponses
```
public java.util.Optional<QueueResponse<QObject>> getQueueResponses()
```
  - setUseQObjectServiceTimeOption
```
public final void setUseQObjectServiceTimeOption(boolean option)
```
    Tells the station to use the QObject to determine the service time
    
    Parameters:
    
    option - true means the station uses the QObject's getValueObject() to determine the service time
  - getUseQObjectServiceTimeOption
```
public final boolean getUseQObjectServiceTimeOption()
```
    Whether or not the station uses the QObject to determine the service time
    
    Returns:
    
    true means the station uses the QObject's getValueObject() to determine the service time
  - getNumberInQueue
```
public final int getNumberInQueue()
```
    The current number in the queue
    
    Returns:
    
    The current number in the queue
  - getNumberInStation
```
public final int getNumberInStation()
```
    The current number in the station (in queue + in service)
    
    Returns:
    
    current number in the station (in queue + in service)
  - getInitialResourceCapacity
```
public final int getInitialResourceCapacity()
```
    The initial capacity of the resource at the station
    
    Returns:
    
    initial capacity of the resource at the station
  - setInitialCapacity
```
public final void setInitialCapacity(int capacity)
```
    Sets the initial capacity of the station's resource
    
    Parameters:
    
    capacity - the initial capacity of the station's resource
  - setServiceTime
```
public final void setServiceTime(GetValueIfc st)
```
    If the service time is null, it is assumed to be zero
    
    Parameters:
    
    st - the GetValueIfc implementor that provides the service time
  - getServiceTime
```
public final GetValueIfc getServiceTime()
```
    The object used to determine the service time when not using the QObject option
    
    Returns:
    
    the object used to determine the service time when not using the QObject
  - getNBAcrossReplicationStatistic
```
public final StatisticAccessorIfc getNBAcrossReplicationStatistic()
```
    Across replication statistics on the number busy servers
    
    Returns:
    
    Across replication statistics on the number busy servers
  - getNSAcrossReplicationStatistic
```
public final StatisticAccessorIfc getNSAcrossReplicationStatistic()
```
    Across replication statistics on the number in system
    
    Returns:
    
    Across replication statistics on the number in system
  - getNSWithinReplicationStatistic
```
public final WeightedStatisticIfc getNSWithinReplicationStatistic()
```
    Within replication statistics on the number in system
    
    Returns:
    
    Within replication statistics on the number in system
  - isResourceAvailable
```
public final boolean isResourceAvailable()
```
    Returns:
    
    true if a resource has available units
  - getCapacity
```
public final int getCapacity()
```
    The capacity of the resource. Maximum number of units that can be busy.
    
    Returns:
    
    The capacity of the resource. Maximum number of units that can be busy.
  - getNumBusyServers
```
public final int getNumBusyServers()
```
    Current number of busy servers
    
    Returns:
    
    Current number of busy servers
  - getFractionBusy
```
public final double getFractionBusy()
```
    Fraction of the capacity that is busy.
    
    Returns:
    
    Fraction of the capacity that is busy.
  - isQueueEmpty
```
public final boolean isQueueEmpty()
```
    Whether the queue is empty
    
    Returns:
    
    Whether the queue is empty
  - isQueueNotEmpty
```
public final boolean isQueueNotEmpty()
```
    Whether the queue is not empty
    
    Returns:
    
    Whether the queue is not empty
  - addQueueListener
```
public final boolean addQueueListener(QueueListenerIfc<QObject> listener)
```
    Adds a QueueListenerIfc to the underlying queue
    
    Parameters:
    
    listener - the listener to queue state changes
    
    Returns:
    
    true if added
  - removeQueueListener
```
public boolean removeQueueListener(QueueListenerIfc<QObject> listener)
```
    Removes a QueueListenerIfc from the underlying queue
    
    Parameters:
    
    listener - the listener to queue state changes
    
    Returns:
    
    true if removed
  - changeDiscipline
```
public final void changeDiscipline(Queue.Discipline discipline)
```
    Parameters:
    
    discipline - the new discipline
  - getInitialDiscipline
```
public final Queue.Discipline getInitialDiscipline()
```
    Returns:
    
    the initial queue discipline
  - setInitialDiscipline
```
public final void setInitialDiscipline(Queue.Discipline discipline)
```
    Parameters:
    
    discipline - the initial queue discipline

Modifier and Type	Field	Description
`protected TimeWeighted`	`myNS`
`protected SResource`	`myResource`
`protected Queue<QObject>`	`myWaitingQ`

Class SingleQueueStation

Nested Class Summary

Nested classes/interfaces inherited from class jsl.simulation.ModelElement

Field Summary

Fields inherited from class jsl.simulation.ModelElement

Constructor Summary

Method Summary

Methods inherited from class jsl.modeling.elements.station.Station

Methods inherited from class jsl.simulation.SchedulingElement

Methods inherited from class jsl.simulation.ModelElement

Methods inherited from class java.lang.Object

Field Detail

myWaitingQ

myNS

myResource

Constructor Detail

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

SingleQueueStation

Method Detail

initialize

getServiceTime

serveNext

receive

getQueueResponses

setUseQObjectServiceTimeOption

getUseQObjectServiceTimeOption

getNumberInQueue

getNumberInStation

getInitialResourceCapacity

setInitialCapacity

setServiceTime

getServiceTime

getNBAcrossReplicationStatistic

getNSAcrossReplicationStatistic

getNSWithinReplicationStatistic

isResourceAvailable

getCapacity

getNumBusyServers

getFractionBusy

isQueueEmpty

isQueueNotEmpty

addQueueListener

removeQueueListener

changeDiscipline

getInitialDiscipline

setInitialDiscipline