ikr.simlib.algorithms.queuingDisciplines

Class LIFOQDisc

java.lang.Object

ikr.simlib.algorithms.queuingDisciplines.StackableQueuingDiscipline

ikr.simlib.algorithms.queuingDisciplines.LIFOQDisc

All Implemented Interfaces:

QueuingDiscipline, ReflectionConstructable, ReflectionConstructable2<SimNode,Parameters>

Direct Known Subclasses:

BoundedLIFOQDisc, UnboundedLIFOQDisc

public abstract class LIFOQDisc
extends StackableQueuingDiscipline

This is the base class for all Last In First Out (LIFO) queuing disciplines. There is an unbounded version (UnboundedLIFOQDisc) and a bounded version (BoundedLIFOQDisc).

Nested Class Summary

Nested classes/interfaces inherited from interface ikr.simlib.algorithms.queuingDisciplines.QueuingDiscipline

QueuingDiscipline.QueueEntry

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Deque<QueuingDiscipline.QueueEntry>	queue

Fields inherited from class ikr.simlib.algorithms.queuingDisciplines.StackableQueuingDiscipline

lossProbability, numberOfMessages, numberOfUnits, parent, simNode, transferTime, waitingTime

Fields inherited from interface ikr.simlib.parameters.reflection.ReflectionConstructable

CREATE_INSTANCE_METHOD_NAME

Constructor Summary

Constructors

Constructor and Description
LIFOQDisc(SimNode ownNode)
LIFOQDisc(SimNode ownNode, Parameters pars)

Method Summary

Methods

Modifier and Type	Method and Description
int	getMaxSizeInUnits()
boolean	isEmpty()
protected QueuingDiscipline.QueueEntry	peek() Retrieve the QueueEntry that would be delivered next, without actually removing it.
protected QueuingDiscipline.QueueEntry	pop() Retrieve and remove the next QueueEntry according to the queuing discipline.
protected void	push(QueuingDiscipline.QueueEntry qe) Push message into the data structure managed by the queuing discipline.

Methods inherited from class ikr.simlib.algorithms.queuingDisciplines.StackableQueuingDiscipline

dequeue, dropScheduledNext, enqueue, getCurrentNumberOfMessages, getCurrentNumberOfUnits, getName, getNode, getParent, handleLossMessage, handleMessage, handleRejectedMessage, hasSpaceFor, statsUpdateDequeue, statsUpdateEnqueue, statsUpdateLoss, statsUpdateReject, wouldStore

Methods inherited from class java.lang.Object

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

Field Detail

queue

protected final java.util.Deque<QueuingDiscipline.QueueEntry> queue

Constructor Detail

LIFOQDisc

public LIFOQDisc(SimNode ownNode)

LIFOQDisc

public LIFOQDisc(SimNode ownNode,
         Parameters pars)

Method Detail

getMaxSizeInUnits

public int getMaxSizeInUnits()

Specified by:

getMaxSizeInUnits in interface QueuingDiscipline

Specified by:

getMaxSizeInUnits in class StackableQueuingDiscipline

Returns:

maximum size of queue or Integer.MAX_VALUE if queue is unbounded.

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface QueuingDiscipline

Specified by:

isEmpty in class StackableQueuingDiscipline

push

protected void push(QueuingDiscipline.QueueEntry qe)

Description copied from class: StackableQueuingDiscipline

Push message into the data structure managed by the queuing discipline.

Specified by:

push in class StackableQueuingDiscipline

peek

protected QueuingDiscipline.QueueEntry peek()

Description copied from class: StackableQueuingDiscipline

Retrieve the QueueEntry that would be delivered next, without actually removing it.

Specified by:

peek in class StackableQueuingDiscipline

pop

protected QueuingDiscipline.QueueEntry pop()

Description copied from class: StackableQueuingDiscipline

Retrieve and remove the next QueueEntry according to the queuing discipline.

Specified by:

pop in class StackableQueuingDiscipline

Returns:

the QueueEntry