Constructor Detail

• JobClass

  JobClass(JobClassType type, String name)

  Creates a new job class with the specified type and name.

  Parameters:

  type - the type of job class (OPEN, CLOSED, etc.

  name - the name for this job class

Method Detail

• getAttribute

   Array<Integer> getAttribute()

• setAttribute

   void setAttribute(Array<Integer> attribute)

• getReplySignalClassIndex

   int getReplySignalClassIndex()

  Gets the index of the reply signal class.

  Returns:

  the index of the reply signal class, or -1 if no reply is expected

• setReplySignalClassIndex

   void setReplySignalClassIndex(int signalClassIndex)

  Sets the reply signal class index for synchronous call semantics. When a job of this class completes service, the server will block until receiving a REPLY signal from the signal class at the specified index.

  Parameters:

  signalClassIndex - the index of the signal class that will unblock the server

• getPatience

   Distribution getPatience()

  Gets the global patience distribution for this job class.

  Returns:

  the patience distribution, or null if not set

• setPatience

   void setPatience(Distribution distribution)

  Sets the global patience distribution for this job class. This applies to all queues unless overridden by a queue-specific patience setting. Defaults to RENEGING patience type for backwards compatibility.

  Parameters:

  distribution - the patience time distribution

• getImpatienceType

   ImpatienceType getImpatienceType()

  Gets the global impatience type for this job class.

  Returns:

  the impatience type, or null if not set

• getBalkingStrategy

   BalkingStrategy getBalkingStrategy()

  Gets the global balking strategy for this job class.

  Returns:

  the balking strategy, or null if not configured

• getBalkingThresholds

   List<BalkingThreshold> getBalkingThresholds()

  Gets the global balking thresholds for this job class.

  Returns:

  list of balking thresholds, or null if not configured

• getRetrialDelayDistribution

   Distribution getRetrialDelayDistribution()

  Gets the global retrial delay distribution for this job class.

  Returns:

  the retrial delay distribution, or null if not configured

• getMaxRetrialAttempts

   int getMaxRetrialAttempts()

  Gets the maximum number of retrial attempts for this job class.

  Returns:

  maximum attempts (-1 for unlimited)

• getCompletes

   boolean getCompletes()

  Checks if jobs in this class complete their service and leave the system.

  Returns:

  true if jobs complete, false if they remain in the system

• setCompletes

   void setCompletes(boolean completes)

• getIndex

   int getIndex()

• getJobClassType

   JobClassType getJobClassType()

  Returns the type of this job class.

  Returns:

  the job class type (OPEN, CLOSED, etc.)

• getNumberOfJobs

   double getNumberOfJobs()

  Returns the number of jobs in this class. Default implementation returns infinite (for open classes).

  Returns:

  number of jobs in this class

• getPriority

   int getPriority()

  Returns the priority level of this job class. Lower values indicate higher priority (priority 0 is highest).

  Returns:

  the priority level

• setPriority

   void setPriority(int p)

  Sets the priority level for this job class.

  Parameters:

  p - the priority level to set

• getDeadline

   double getDeadline()

  Returns the relative deadline for jobs in this class. The deadline is specified as time units from job arrival. A value of Double.POSITIVE_INFINITY indicates no deadline constraint.

  Returns:

  the relative deadline in time units, or Double.POSITIVE_INFINITY if no deadline

• setDeadline

   void setDeadline(double deadline)

  Sets the relative deadline for jobs in this class. Jobs will be assigned an absolute deadline of arrivalTime + deadline when they enter queues with EDD/EDF scheduling.

  Parameters:

  deadline - the relative deadline in time units (must be >0), or Double.

• getReferenceStation

   Station getReferenceStation()

  Returns the reference station for this job class. The reference station is used for normalization in closed networks.

  Returns:

  the reference station, or null if not set

• setReferenceStation

   void setReferenceStation(Station ref)

  Sets the reference station for this job class.

  Parameters:

  ref - the station to use as reference

• isReferenceClass

   boolean isReferenceClass()

  Checks if this is a reference job class within its chain.

  Returns:

  true if this is a reference class

• setReferenceClass

   void setReferenceClass(boolean isrefclass)

  Sets whether this job class is a reference class within its chain.

  Parameters:

  isrefclass - true to make this a reference class

• isReferenceStation

   boolean isReferenceStation(Node node)

  Checks if the specified node is the reference station for this class.

  Parameters:

  node - the node to check

  Returns:

  true if the node is the reference station

• expectsReply

   boolean expectsReply()

  Checks if this job class expects a reply signal after processing.

  Returns:

  true if a reply signal is expected, false otherwise

• setPatience

   void setPatience(ImpatienceType impatienceType, Distribution distribution)

  Sets the global impatience type and distribution for this job class. This applies to all queues unless overridden by a queue-specific patience setting.

  Parameters:

  impatienceType - the type of impatience (RENEGING or BALKING)

  distribution - the patience time distribution

• hasPatience

   boolean hasPatience()

  Checks if this job class has a patience distribution configured.

  Returns:

  true if patience is configured, false otherwise

• setBalking

   void setBalking(BalkingStrategy strategy, List<BalkingThreshold> thresholds)

  Sets the global balking configuration for this job class using queue-length thresholds. This applies to all queues unless overridden by a queue-specific balking setting.

  Parameters:

  strategy - the balking strategy to use

  thresholds - list of balking thresholds mapping queue lengths to probabilities

• setBalking

   void setBalking(BalkingStrategy strategy, int minJobs, double probability)

  Sets the global balking configuration using a single threshold. Convenience method for simple balking configurations.

  Parameters:

  strategy - the balking strategy to use

  minJobs - minimum queue length to trigger balking

  probability - balking probability when queue length >= minJobs

• hasBalking

   boolean hasBalking()

  Checks if this job class has balking configured.

  Returns:

  true if balking is configured, false otherwise

• setRetrial

   void setRetrial(Distribution delayDistribution, int maxAttempts)

  Sets the global retrial configuration for this job class. When a customer is rejected due to capacity, they will enter an orbit and retry after a delay drawn from the specified distribution.

  Parameters:

  delayDistribution - the distribution for retrial delay times

  maxAttempts - maximum retry attempts (-1 for unlimited, 0 for no retries)

• setRetrial

   void setRetrial(Distribution delayDistribution)

  Sets the global retrial configuration with unlimited retry attempts.

  Parameters:

  delayDistribution - the distribution for retrial delay times

• hasRetrial

   boolean hasRetrial()

  Checks if this job class has retrial configured.

  Returns:

  true if retrial is configured, false otherwise

• printSummary

   void printSummary()

  Prints a summary of this job class configuration to the console.

• hasImmediateFeedback

   boolean hasImmediateFeedback()

  Checks if immediate feedback is enabled for this job class.

  Returns:

  true if immediate feedback is enabled

• setImmediateFeedback

   void setImmediateFeedback(boolean enabled)

  Enables or disables immediate feedback for this job class globally. When enabled, jobs of this class that self-loop at any station stay in service instead of rejoining the queue.

  Parameters:

  enabled - true to enable immediate feedback, false to disable