Package jline.opt.objectives

Class MinimizeCost

java.lang.Object

jline.opt.objectives.Objective

jline.opt.objectives.MinimizeCost

public class MinimizeCost
extends Objective

Minimize infrastructure cost subject to service-level constraints. Cost is a weighted sum of server costs (name_servers), rate costs (variable names containing the station name and "rate"), and replica costs (name_replicas). Mirrors native-Python MinimizeCost.

Field Summary

Fields inherited from class jline.opt.objectives.Objective

constraints

Constructor Summary

Constructors

Constructor	Description
MinimizeCost(Map<Station,Double> serverCost, Map<Station,Double> rateCost, Map<Station,Double> replicaCost, List<Constraint> subjectTo)

Method Summary

Modifier and Type	Method	Description
double	evaluate(EvaluationResult result, Map<String,Object> variableValues)	The scalar to minimize (before constraint penalties).
boolean	isMinimization()
static MinimizeCost	rateCost(Map<Station,Double> rateCost, List<Constraint> subjectTo)	Rate-cost-only convenience constructor.
static MinimizeCost	serverCost(Map<Station,Double> serverCost, List<Constraint> subjectTo)	Server-cost-only convenience constructor.

Methods inherited from class jline.opt.objectives.Objective

evaluateWithPenalty, getConstraints

Methods inherited from class java.lang.Object

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

Constructor Details

MinimizeCost

public MinimizeCost(Map<Station,Double> serverCost,
 Map<Station,Double> rateCost,
 Map<Station,Double> replicaCost,
 List<Constraint> subjectTo)

Method Details

serverCost

public static MinimizeCost serverCost(Map<Station,Double> serverCost,
 List<Constraint> subjectTo)

Server-cost-only convenience constructor.

rateCost

public static MinimizeCost rateCost(Map<Station,Double> rateCost,
 List<Constraint> subjectTo)

Rate-cost-only convenience constructor.

isMinimization

public boolean isMinimization()

Specified by:

isMinimization in class Objective

evaluate

public double evaluate(EvaluationResult result,
 Map<String,Object> variableValues)

Description copied from class: Objective

The scalar to minimize (before constraint penalties).

Specified by:

evaluate in class Objective