sema
Class Engine

java.lang.Object
  sema.Engine

public class Engine

extends java.lang.Object

Engine of the modelling. The current time is the one of the last treated event (t=0 at initialisation). It simulates a continious time (coded on a Double). An Event executes itself with no duration in the simulation. The lasting of a series of event is emulated by the virtual time to wait until next event.

Nested Class Summary

static class	Engine.EndOfSimulation Indicates that the simulation has ended.
static class	Engine.SimulationError The last event has raised an exception.

Constructor Summary

Engine()

Method Summary

protected void	add(Event ev) Add an event to the engine Events with strict inferior dates to the current simulated time, are ignored.
void	delete(Event ev) Delete an event from the engine.
java.lang.String[][]	getProperties() Returns the world's properties.
double	getTime() Returns the current simulated time in milliseconde
void	gotoDate(java.lang.Double date) Executes every events until it reachs the date.
void	next() Executes the events of the smallest date.
void	setProperties(java.lang.String property, java.lang.String value) Allows the modification of the properties through the interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

Engine

public Engine()

Method Detail

getTime

public double getTime()

Returns the current simulated time in milliseconde

add

protected void add(Event ev)

Add an event to the engine Events with strict inferior dates to the current simulated time, are ignored.

delete

public void delete(Event ev)

Delete an event from the engine.

next

public void next()
          throws Engine.EndOfSimulation,
                 Engine.SimulationError

Executes the events of the smallest date.

Throws:

Engine.EndOfSimulation

Engine.SimulationError

gotoDate

public void gotoDate(java.lang.Double date)
              throws Engine.EndOfSimulation,
                     Engine.SimulationError

Executes every events until it reachs the date.

Throws:

Engine.EndOfSimulation

Engine.SimulationError

getProperties

public java.lang.String[][] getProperties()

Returns the world's properties. The properties are formated as a table with two columns, the first with the name of the property and the second with the value corresponding : ( everything must be of string type ) {{"prop1", "value1"}, ..., {"propN", "valueN"}}.

setProperties

public void setProperties(java.lang.String property,
                          java.lang.String value)

Allows the modification of the properties through the interface.
It takes the name of the property and the value (as a string) we want to associated to it. It changes it if it decides it but no waranties are made. The name of the property must be the same as the one returned by getProperties().