stream.generator

Class ProportionalOracle

java.lang.Object

stream.generator.ProportionalOracle

public class ProportionalOracle
extends Object

This class is a proportional oracle, which will predict values from a fixed, nominal set, where each nominal value has a specific weight. The values are drawn from a unified random distribution, weighted by a predefined weighting scheme.

Thus, it allows for pre-defining the proportion of each of the nominal values in the final outcome.

Author:

chris

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static org.slf4j.Logger	log
(package private) TreeMap<Double,String>	map
(package private) Random	rnd
(package private) Map<String,Double>	weights

Constructor Summary

Constructors

Constructor and Description
ProportionalOracle()
ProportionalOracle(Long seed)

Method Summary

Modifier and Type	Method and Description
Set<String>	getLabels()
String	getNext()
Double	getWeight(String key)
static void	main(String[] args)
void	setSeed(Long seed)
void	setWeights(Map<String,Double> weights)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

log

static org.slf4j.Logger log

rnd

Random rnd

map

TreeMap<Double,String> map

weights

Map<String,Double> weights

Constructor Detail

ProportionalOracle

public ProportionalOracle()

ProportionalOracle

public ProportionalOracle(Long seed)

Method Detail

setSeed

public void setSeed(Long seed)

setWeights

public void setWeights(Map<String,Double> weights)

getLabels

public Set<String> getLabels()

getWeight

public Double getWeight(String key)

getNext

public String getNext()

toString

public String toString()

Overrides:

toString in class Object

main

public static void main(String[] args)