Class Engine

java.lang.Object

java.lang.Thread

simu.framework.Engine

All Implemented Interfaces:

Runnable, IEngine

Direct Known Subclasses:

OwnEngine

public abstract class Engine
extends Thread
implements IEngine

The Engine class is an abstract class that represents the core of the simulation engine. It extends the Thread class and implements the IEngine interface. The engine manages the simulation time, event list, and the execution of events.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.Builder, Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
protected IControllerForM	controller
protected EventList	eventList

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
Engine(IControllerForM controller)	Constructs an Engine with the specified controller.

Method Summary

Modifier and Type	Method	Description
protected abstract void	attemptCEvents()	Attempts the C-phase events.
long	getDelay()	Returns the delay between simulation steps.
protected abstract void	init()	Initializes the simulation.
protected abstract void	results()	Displays the simulation results.
void	run()	Runs the simulation engine.
protected abstract void	runEvent(Event t)	Runs the specified event.
void	setDelay(long delay)	Sets the delay between simulation steps.
void	setSimulationTime(double time)	Sets the simulation time of the engine.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, isVirtual, join, join, join, join, ofPlatform, ofVirtual, onSpinWait, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, sleep, start, startVirtualThread, stop, threadId, toString, yield

Methods inherited from class java.lang.Object

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

Field Details

eventList

protected EventList eventList

controller

protected IControllerForM controller

Constructor Details

Engine

public Engine(IControllerForM controller)

Constructs an Engine with the specified controller.

Parameters:

controller - the controller used to manage the simulation

Method Details

setSimulationTime

public void setSimulationTime(double time)

Sets the simulation time of the engine.

Specified by:

setSimulationTime in interface IEngine

Parameters:

time - the new simulation time

setDelay

public void setDelay(long delay)

Sets the delay between simulation steps.

Specified by:

setDelay in interface IEngine

Parameters:

delay - the delay in milliseconds

getDelay

public long getDelay()

Returns the delay between simulation steps.

Specified by:

getDelay in interface IEngine

Returns:

the delay in milliseconds

run

public void run()

Runs the simulation engine. The engine initializes the simulation, runs the B-phase events, and attempts the C-phase events. The engine continues to run until the simulation time is reached. The engine then displays the simulation results. The engine also includes a delay between simulation steps. The engine is implemented as a thread to allow for concurrent execution.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

attemptCEvents

protected abstract void attemptCEvents()

Attempts the C-phase events. The engine attempts to run the C-phase events. The engine is implemented in the subclasses of the engine.

init

protected abstract void init()

Initializes the simulation. The engine is implemented in the subclasses of the engine.

runEvent

protected abstract void runEvent(Event t)

Runs the specified event. The engine is implemented in the subclasses of the engine.

Parameters:

t - the event to run

results

protected abstract void results()

Displays the simulation results. The engine is implemented in the subclasses of the engine.