Package jasima.core.random.continuous

Class DblSequence

java.lang.Object

jasima.core.random.continuous.DblSequence

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

ArrivalProcess, DblConst, DblDistribution, DblErlang, DblNormal, DblSumStream, DblTriangular, DblTruncatedSimple, DblUniformRange, DblUniformZeroOne, IntSequence

public abstract class DblSequence
extends Object
implements Serializable, Cloneable

A stream of double numbers, usually the sequence is produced by a pseudo random number generator.

Author:

Torsten Hildebrandt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Random	rndGen

Constructor Summary

Constructors

Constructor	Description
DblSequence()

Method Summary

Modifier and Type	Method	Description
DblSequence	clone()	Clones the current number stream.
DblStreamDef	createStreamDefFromStream()	Creates a DblStreamDef object from this stream.
String	getName()	Returns the stream's name.
double	getNumericalMean()	Returns the arithmetic mean of the values returned by nextDbl().
Random	getRndGen()	Returns the random number generator currently associated with this stream.
Pair<Double,Double>	getValueRange()	This method computes the minimum and maximum support values (range of possible values) of this stream.
void	init()	Initializes this stream.
double	max()	Returns the maximum value to be produced by this object.
double	min()	Returns the minimum value to be produced by this object.
abstract double	nextDbl()	Returns the next number in this number stream.
void	setName(String name)	Sets an optional name for this stream.
void	setRndGen(Random rndGen)	Sets the random number generator to be used if this stream has a random component.

Methods inherited from class java.lang.Object

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

Field Detail

rndGen

protected Random rndGen

Constructor Detail

DblSequence

public DblSequence()

Method Detail

init

public void init()

Initializes this stream. This method is supposed to be called once before repeated calls to nextDbl() can be made.

nextDbl

public abstract double nextDbl()

Returns the next number in this number stream.

getNumericalMean

public double getNumericalMean()

Returns the arithmetic mean of the values returned by nextDbl().

getValueRange

public Pair<Double,Double> getValueRange()

This method computes the minimum and maximum support values (range of possible values) of this stream.

Returns:

A Pair containing the minimum and maximum support values.

min

public double min()

Returns the minimum value to be produced by this object.

Returns:

Returns the minimum value to be produced by this object.

See Also:

getValueRange()

max

public double max()

Returns the maximum value to be produced by this object.

Returns:

Returns the maximum value to be produced by this object.

See Also:

getValueRange()

createStreamDefFromStream

public final DblStreamDef createStreamDefFromStream()

Creates a DblStreamDef object from this stream. This method only delegates to DblStreamDef.createStreamDefFromStream(DblSequence) and therefore is final.

clone

public DblSequence clone()

Clones the current number stream. This method fails with a CloneNotSupportedException if there is a random number generator associated with this stream.

Overrides:

clone in class Object

getRndGen

public Random getRndGen()

Returns the random number generator currently associated with this stream.

setRndGen

public void setRndGen(Random rndGen)

Sets the random number generator to be used if this stream has a random component.

getName

public String getName()

Returns the stream's name.

setName

public void setName(String name)

Sets an optional name for this stream. The name can be used to, e.g., initialize the random number generator as in RandomFactory.initRndGen(DblSequence, String).

Parameters:

name - The stream's name.