org.chocosolver.solver.search.strategy.selectors.variables

Class MinDelta

java.lang.Object

org.chocosolver.solver.search.strategy.selectors.variables.MinDelta

All Implemented Interfaces:

Serializable, VariableEvaluator<SetVar>, VariableSelector<SetVar>

public class MinDelta
extends Object
implements VariableSelector<SetVar>, VariableEvaluator<SetVar>

Selects the variables minimising envelopeSize-kernelSize (quite similar to minDomain, or first-fail)

Since:

6/10/13

Author:

Jean-Guillaume Fages

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MinDelta()

Method Summary

Methods

Modifier and Type	Method and Description
double	evaluate(SetVar variable) Evaluates the heuristic that is minimized in order to find the best variable
SetVar	getVariable(SetVar[] variables) Provides access to the current selected variable among variables.

Methods inherited from class java.lang.Object

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

Constructor Detail

MinDelta

public MinDelta()

Method Detail

getVariable

public SetVar getVariable(SetVar[] variables)

Description copied from interface: VariableSelector

Provides access to the current selected variable among variables. If there is no variable left, return null.

Specified by:

getVariable in interface VariableSelector<SetVar>

Returns:

the current selected variable if any, null otherwise.

evaluate

public double evaluate(SetVar variable)

Description copied from interface: VariableEvaluator

Evaluates the heuristic that is minimized in order to find the best variable

Specified by:

evaluate in interface VariableEvaluator<SetVar>

Parameters:

variable - array of variable

Returns:

the result of the evaluation, to minimize