net.sf.cpsolver.coursett.criteria.placement

Class DeltaTimePreference

java.lang.Object

net.sf.cpsolver.ifs.criteria.AbstractCriterion<Lecture,Placement>

net.sf.cpsolver.coursett.criteria.TimetablingCriterion

net.sf.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion

net.sf.cpsolver.coursett.criteria.placement.DeltaTimePreference

All Implemented Interfaces:

Criterion<Lecture,Placement>, InfoProvider<Lecture>, ModelListener<Lecture,Placement>

public class DeltaTimePreference
extends PlacementSelectionCriterion

Difference between proposed and best time assignment. Time assignments that are do not maximize time preference are penalized by the difference in the preference.

Version:

CourseTT 1.2 (University Course Timetabling)
Copyright (C) 2006 - 2011 Tomáš Müller
muller@unitime.org
http://muller.unitime.org

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not see http://www.gnu.org/licenses/.

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion

AbstractCriterion.ValueUpdateType

Field Summary

Fields inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion

iBest, iDebug, iValue, iValueUpdateType, iWeight, sDoubleFormat, sPercentFormat

Constructor Summary

Constructors

Constructor and Description
DeltaTimePreference()

Method Summary

Modifier and Type	Method and Description
double	getPlacementSelectionWeightDefault(int level)
String	getPlacementSelectionWeightName()
double	getValue(Placement value, Set<Placement> conflicts) Value of a proposed assignment (including hard conflicts)
boolean	init(Solver<Lecture,Placement> solver) Notification that the model was initialized by the solver.

Methods inherited from class net.sf.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion

getInfo, getInfo, getWeightDefault

Methods inherited from class net.sf.cpsolver.coursett.criteria.TimetablingCriterion

getAbbreviation, getPlacementSelectionWeight, toString

Methods inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion

afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getBounds, getBounds, getModel, getName, getPerc, getPercRev, getValue, getValue, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, getWeightName, inc, variableAdded, variableRemoved

Methods inherited from class java.lang.Object

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

Constructor Detail

DeltaTimePreference

public DeltaTimePreference()

Method Detail

init

public boolean init(Solver<Lecture,Placement> solver)

Description copied from interface: ModelListener

Notification that the model was initialized by the solver.

Specified by:

init in interface ModelListener<Lecture,Placement>

Overrides:

init in class TimetablingCriterion

Parameters:

solver - IFS solver

getPlacementSelectionWeightName

public String getPlacementSelectionWeightName()

Overrides:

getPlacementSelectionWeightName in class TimetablingCriterion

getValue

public double getValue(Placement value,
                       Set<Placement> conflicts)

Description copied from interface: Criterion

Value of a proposed assignment (including hard conflicts)

getPlacementSelectionWeightDefault

public double getPlacementSelectionWeightDefault(int level)

Overrides:

getPlacementSelectionWeightDefault in class TimetablingCriterion