simulation.scheduler

Class Scheduler

java.lang.Object

simulation.scheduler.Scheduler

All Implemented Interfaces:

IScheduler

public class Scheduler
extends Object
implements IScheduler

The scheduler used for managing future events. Associates to each atomic model (or rather its associated atomic simulator) a time at which its next internal event should take place. The event time is possibly infinity.

Author:

cmascart

Field Summary

Fields

Modifier and Type	Field and Description
protected ArrayList<TreeMap<Double,Set<IAtomicSimulator>>>	scheds The array is to differentiate the models making an internal event with output from the models making an internal event without output.

Constructor Summary

Constructors

Constructor and Description
Scheduler() Default constructor creates the maps

Method Summary

Modifier and Type	Method and Description
void	addSimulator(Double tN, IAtomicSimulator sim, int value) Add a simulator at a given time of next internal event
Double	findGTEKey(Double inT) Given a time of event, finds the greatest key (time of next event) lower or equal to the given time.
void	remove(Double tN, int val) At a given event time, remove all the scheduled simulators from either the tree of outputting models, or the tree without output
void	removeSimulator(double t, IAtomicSimulator sim) Remove a simulator from the tree of future events at the given key time.
Set<IAtomicSimulator>	selectp(Double t, int value) Select the next event set (at a given time, the minimum one in this case, all events making an internal transition)

Methods inherited from class java.lang.Object

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

Field Detail

scheds

protected ArrayList<TreeMap<Double,Set<IAtomicSimulator>>> scheds

The array is to differentiate the models making an internal event with output from the models making an internal event without output. Future events are sorted by ascending order, and at each possible event time is associated a set of simulators.

Constructor Detail

Scheduler

public Scheduler()

Default constructor creates the maps

Method Detail

addSimulator

public void addSimulator(Double tN,
                         IAtomicSimulator sim,
                         int value)

Add a simulator at a given time of next internal event

Specified by:

addSimulator in interface IScheduler

Parameters:

tN - time of next event

sim - the simulator

value - the value

selectp

public Set<IAtomicSimulator> selectp(Double t,
                                     int value)

Select the next event set (at a given time, the minimum one in this case, all events making an internal transition)

Specified by:

selectp in interface IScheduler

Parameters:

t - time of event

value - the value deciding between with or without (you) output

Returns:

the set of selected simulators

remove

public void remove(Double tN,
                   int val)

At a given event time, remove all the scheduled simulators from either the tree of outputting models, or the tree without output

Specified by:

remove in interface IScheduler

Parameters:

tN - event time

val - code for either of the two trees

removeSimulator

public void removeSimulator(double t,
                            IAtomicSimulator sim)

Remove a simulator from the tree of future events at the given key time.

Specified by:

removeSimulator in interface IScheduler

Parameters:

t - event time the simulator was associated with

sim - the simulator to remove from the scheduler at that event time

findGTEKey

public Double findGTEKey(Double inT)

Given a time of event, finds the greatest key (time of next event) lower or equal to the given time. Looks for both kinds of internal events (with or without (you) output).

Specified by:

findGTEKey in interface IScheduler

Parameters:

inT - the time before the searched event

Returns:

the greatest key lower or equal to inT