Package jline.opt.objectives

Class Constraint

java.lang.Object

jline.opt.objectives.Constraint

Direct Known Subclasses:

BudgetConstraint, ResponseTimeConstraint, SystemResponseTimeConstraint, ThroughputConstraint, UtilizationConstraint

public abstract class Constraint
extends Object

Abstract base for line-opt constraints. Each constraint computes a non-negative violation amount (0 if satisfied) given an EvaluationResult and the current variable values. Mirrors native-Python line_solver.opt.objectives.Constraint.

Field Summary

Fields

Modifier and Type	Field	Description
protected final String	name

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Constraint(String name)

Method Summary

Modifier and Type	Method	Description
abstract double	evaluate(EvaluationResult result, Map<String,Object> variableValues)	Violation amount: 0 if satisfied, positive if violated.
protected abstract String	generateName()
String	getName()
boolean	isSatisfied(EvaluationResult result, Map<String,Object> variableValues, double tolerance)
protected static double	lowerBoundViolation(double actual, double bound)	Violation for a lower-bound constraint (actual >= bound).
protected static double	upperBoundViolation(double actual, double bound)	Violation for an upper-bound constraint (actual <= bound).

Methods inherited from class java.lang.Object

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

Field Details

name

protected final String name

Constructor Details

Constraint

protected Constraint(String name)

Method Details

getName

public String getName()

generateName

protected abstract String generateName()

evaluate

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

Violation amount: 0 if satisfied, positive if violated.

isSatisfied

public boolean isSatisfied(EvaluationResult result,
 Map<String,Object> variableValues,
 double tolerance)

upperBoundViolation

protected static double upperBoundViolation(double actual,
 double bound)

Violation for an upper-bound constraint (actual <= bound). A non-finite metric signals divergence and is reported as strongly infeasible (+inf), mirroring the native guard that avoids NaN silently satisfying bounds.

lowerBoundViolation

protected static double lowerBoundViolation(double actual,
 double bound)

Violation for a lower-bound constraint (actual >= bound).