org.cloudbus.cloudsim.distributions

Class ContinuousDistributionAbstract

java.lang.Object

org.cloudbus.cloudsim.distributions.ContinuousDistributionAbstract

All Implemented Interfaces:

ContinuousDistribution

Direct Known Subclasses:

ExponentialDistr, GammaDistr, LognormalDistr, NormalDistr, ParetoDistr, UniformDistr, WeibullDistr, ZipfDistr

public abstract class ContinuousDistributionAbstract
extends Object
implements ContinuousDistribution

An base class for implementation of ContinuousDistributions.

Author:

Manoel Campos da Silva Filho

Field Summary

Fields inherited from interface org.cloudbus.cloudsim.distributions.ContinuousDistribution

NULL

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ContinuousDistributionAbstract(org.apache.commons.math3.distribution.RealDistribution numGen) Creates a new continuous random number generator using the current time as seed.
protected	ContinuousDistributionAbstract(org.apache.commons.math3.distribution.RealDistribution numGen, long seed) Creates a new continuous random number generator.

Method Summary

Modifier and Type	Method and Description
long	getSeed()
double	sample() Generate a new pseudo random number.
protected void	setSeed(long seed)

Methods inherited from class java.lang.Object

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

Constructor Detail

ContinuousDistributionAbstract

protected ContinuousDistributionAbstract(org.apache.commons.math3.distribution.RealDistribution numGen)

Creates a new continuous random number generator using the current time as seed.

Parameters:

numGen - the actual random number generator that will be the base to generate random numbers following a continuous distribution.

ContinuousDistributionAbstract

protected ContinuousDistributionAbstract(org.apache.commons.math3.distribution.RealDistribution numGen,
                                         long seed)

Creates a new continuous random number generator.

Parameters:

numGen - the actual random number generator that will be the base to generate random numbers following a continuous distribution.

seed - the seed to initialize the random number generator. If it is passed -1, the current time will be used

Method Detail

getSeed

public final long getSeed()

Specified by:

getSeed in interface ContinuousDistribution

Returns:

the seed used to initialize the generator

setSeed

protected final void setSeed(long seed)

sample

public double sample()

Description copied from interface: ContinuousDistribution

Generate a new pseudo random number.

Specified by:

sample in interface ContinuousDistribution

Returns:

the next pseudo random number in the sequence, following the implemented distribution.