com.softsynth.jmsl.util
Class RandomSequence

java.lang.Object
  com.softsynth.jmsl.util.RandomSequence

All Implemented Interfaces:

SequenceGenerator

Direct Known Subclasses:

RandomWalkSequence

public class RandomSequence
extends java.lang.Object
implements SequenceGenerator

Generate evenly distributed pseudo-random sequence of integers within a given inclusive range. By setting the seed, one can regenerate a prior sequence.

Author:

Phil Burk and Nick Didkovsky

Constructor Summary

RandomSequence()

Method Summary

int	choose(int numChoices)
int	getMaximum()
int	getMinimum()
int	getNext()
int	getSeed()
int	next() Generate next value.
void	randomize() Set seed from system time.
void	reset() Reset sequence generator so that it will restart at beginning.
void	setMaximum(int maximum) Set maximum value returned by next(). If minimum is 5 and maximum is 8 then next() will return random values including 5,6,7 AND 8.
void	setMinimum(int minimum)
void	setNext(int next) Set next value in sequence.
void	setSeed(int seed) Set sequence seed.

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomSequence

public RandomSequence()

Method Detail

randomize

public void randomize()

Set seed from system time. This will result in a unique sequence each time it is called.

Specified by:

randomize in interface SequenceGenerator

choose

public int choose(int numChoices)

Returns:

random number between 0 and numChoices-1

next

public int next()

Generate next value.

Specified by:

next in interface SequenceGenerator

Returns:

next value in sequence.

getNext

public int getNext()

Specified by:

getNext in interface SequenceGenerator

Returns:

next value in sequence.

setNext

public void setNext(int next)

Set next value in sequence.

Specified by:

setNext in interface SequenceGenerator

setSeed

public void setSeed(int seed)

Set sequence seed.

Specified by:

setSeed in interface SequenceGenerator

getSeed

public int getSeed()

Specified by:

getSeed in interface SequenceGenerator

Returns:

seed set by setSeed.

reset

public void reset()

Reset sequence generator so that it will restart at beginning.

Specified by:

reset in interface SequenceGenerator

getMinimum

public int getMinimum()

Returns:

minimum value returned by next().

setMinimum

public void setMinimum(int minimum)

getMaximum

public int getMaximum()

Returns:

maximum value returned by next().

setMaximum

public void setMaximum(int maximum)

Set maximum value returned by next().
If minimum is 5 and maximum is 8 then next() will return random values including 5,6,7 AND 8.