org.cpsolver.coursett.criteria.placement

Class DeltaTimePreference

java.lang.Object

org.cpsolver.ifs.criteria.AbstractCriterion<Lecture,Placement>

org.cpsolver.coursett.criteria.TimetablingCriterion

org.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion

org.cpsolver.coursett.criteria.placement.DeltaTimePreference

All Implemented Interfaces:

CanHoldContext, HasAssignmentContext<Lecture,Placement,AbstractCriterion.ValueContext>, Criterion<Lecture,Placement>, ExtendedInfoProvider<Lecture,Placement>, InfoProvider<Lecture,Placement>, 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 1.3 (University Course Timetabling)
Copyright (C) 2006 - 2014 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/.

Author:

Tomáš Müller

Nested Class Summary

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

AbstractCriterion.ValueContext, AbstractCriterion.ValueUpdateType

Field Summary

Fields inherited from class org.cpsolver.ifs.criteria.AbstractCriterion

iBest, iDebug, iWeight, sDoubleFormat, sPercentFormat

Fields inherited from interface org.cpsolver.ifs.assignment.context.CanHoldContext

sMaxSize

Constructor Summary

Constructors

Constructor and Description
DeltaTimePreference()

Method Summary

Modifier and Type	Method and Description
void	configure(DataProperties properties) Configure the criterion if needed
double	getPlacementSelectionWeightDefault(int level)
String	getPlacementSelectionWeightName()
double	getValue(Assignment<Lecture,Placement> assignment, Placement value, Set<Placement> conflicts) Value of a proposed assignment (including hard conflicts)

Methods inherited from class org.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion

getInfo, getInfo, getWeightDefault

Methods inherited from class org.cpsolver.coursett.criteria.TimetablingCriterion

getPlacementSelectionAdjustmentsName, getPlacementSelectionWeight

Methods inherited from class org.cpsolver.ifs.criteria.AbstractCriterion

afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, createAssignmentContext, getAbbreviation, getAssignmentContextReference, getBest, getBounds, getBounds, getBounds, getBounds, getContext, getContext, getExtendedInfo, getModel, getName, getPerc, getPercentage, getPercRev, getValue, getValue, getValue, getValue, getValueUpdateType, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, getWeightName, inc, inc, init, setAssignmentContextReference, setModel, setValueUpdateType, toString, variableAdded, variableRemoved

Methods inherited from class java.lang.Object

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

Constructor Detail

DeltaTimePreference

public DeltaTimePreference()

Method Detail

configure

public void configure(DataProperties properties)

Description copied from interface: Criterion

Configure the criterion if needed

Specified by:

configure in interface Criterion<Lecture,Placement>

Overrides:

configure in class TimetablingCriterion

Parameters:

properties - configuration

getPlacementSelectionWeightName

public String getPlacementSelectionWeightName()

Overrides:

getPlacementSelectionWeightName in class TimetablingCriterion

getValue

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

Description copied from interface: Criterion

Value of a proposed assignment (including hard conflicts)

Parameters:

assignment - current assignment

value - given value

conflicts - values conflicting with the given value

Returns:

change in this criterion value when assigned

getPlacementSelectionWeightDefault

public double getPlacementSelectionWeightDefault(int level)

Overrides:

getPlacementSelectionWeightDefault in class TimetablingCriterion