generator2
Class ObjectGenerator

java.lang.Object
  |
  +--generator2.ObjectGenerator

Direct Known Subclasses:

ConstantObjectGenerator

public class ObjectGenerator

extends java.lang.Object

Class for defining the properties of moving objects. An example is the computations of new starting and destination nodes.

Field Summary

protected static int	currId The value of the next identifier.
protected DataSpace	dataspace The dataspace of the network.
protected double	maxLength The maximum length of routes.
protected Node[]	node The nodes of the network as an array.
protected Nodes	nodes The nodes of the network.
protected int	numOfGeneratedNodes The number of generated node pairs.
protected int	numOfObjAtBeginning Indicator for the number of moving objects at the beginning.
protected int	numOfObjPerTime Indicator for the number of moving objects per time.
protected ObjectClasses	objClasses The object classes.
protected java.util.Properties	properties Properties of the generator.
protected java.util.Random	random The random generator.
protected Time	time The time object.
protected double	totalLength The total length of routes.

Constructor Summary

ObjectGenerator(java.util.Properties properties, Time time, DataSpace ds, Nodes nodes, ObjectClasses objClasses, int numOfObjPerTime, int numOfObjAtBeginning)
ObjectGenerator constructor.

Method Summary

Node	computeDestinationNode(int time, Node startingNode, int length, int objClass) Computes a new destination node of a route.
int	computeId(int currTime) Returns the identifier of the next new moving object.
int	computeLengthOfRoute(int time, int objClass) Generates the length of a new route.
int	computeObjectClass(int currTime) Computes the object class of a new object.
Node	computeStartingNode(int time, int objClass) Computes a new starting node.
int	getAverageRouteLength() Returns the average distance of routes.
int	numberOfNewObjects(int time) Returns the number of new objects at a time stamp.
void	reachDestination(MovingObject obj) Method, which is called, when a moving object reaches its destination.

Methods inherited from class java.lang.Object

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

Field Detail

currId

protected static int currId

The value of the next identifier.

properties

protected java.util.Properties properties

Properties of the generator.

time

protected Time time

The time object.

dataspace

protected DataSpace dataspace

The dataspace of the network.

objClasses

protected ObjectClasses objClasses

The object classes.

nodes

protected Nodes nodes

The nodes of the network.

node

protected Node[] node

The nodes of the network as an array.

numOfObjPerTime

protected int numOfObjPerTime

Indicator for the number of moving objects per time.

numOfObjAtBeginning

protected int numOfObjAtBeginning

Indicator for the number of moving objects at the beginning.

maxLength

protected double maxLength

The maximum length of routes.

numOfGeneratedNodes

protected int numOfGeneratedNodes

The number of generated node pairs.

totalLength

protected double totalLength

The total length of routes.

random

protected java.util.Random random

The random generator.

Constructor Detail

ObjectGenerator

public ObjectGenerator(java.util.Properties properties,
                       Time time,
                       DataSpace ds,
                       Nodes nodes,
                       ObjectClasses objClasses,
                       int numOfObjPerTime,
                       int numOfObjAtBeginning)

ObjectGenerator constructor.

Parameters:

properties - properties of the generator

time - the time object

nodes - the nodes of the network

objClasses - description of the object classes

numOfObjPerTime - indicator for the number of objects per time

numOfObjAtBeginning - indicator for the number of moving objects at the beginning

Method Detail

computeDestinationNode

public Node computeDestinationNode(int time,
                                   Node startingNode,
                                   int length,
                                   int objClass)

Computes a new destination node of a route.

Parameters:

time - the time stamp

startingNode - the starting node of the route

length - preferred length of the route

objClass - the class of the object

Returns:

starting node

computeId

public int computeId(int currTime)

Returns the identifier of the next new moving object.

Parameters:

currTime - the current time

Returns:

the id

computeLengthOfRoute

public int computeLengthOfRoute(int time,
                                int objClass)

Generates the length of a new route.

Parameters:

time - time stamp

objClass - object class of the moving object

Returns:

length

computeObjectClass

public int computeObjectClass(int currTime)

Computes the object class of a new object.

Parameters:

currTime - the current time

Returns:

the class

computeStartingNode

public Node computeStartingNode(int time,
                                int objClass)

Computes a new starting node.

Parameters:

time - the time stamp

objClass - the class of the object

Returns:

starting node

getAverageRouteLength

public int getAverageRouteLength()

Returns the average distance of routes.

Returns:

the average distance of routes

numberOfNewObjects

public int numberOfNewObjects(int time)

Returns the number of new objects at a time stamp.

Parameters:

time - the time stamp

Returns:

number of objects

reachDestination

public void reachDestination(MovingObject obj)

Method, which is called, when a moving object reaches its destination. Can be used for infuencing the behavior of the methods computing the behavior of new objects.

Parameters:

obj - the moving object