net.sf.cpsolver.coursett.criteria

Class TooBigRooms

java.lang.Object

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

net.sf.cpsolver.coursett.criteria.TimetablingCriterion

net.sf.cpsolver.coursett.criteria.TooBigRooms

All Implemented Interfaces:

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

public class TooBigRooms
extends TimetablingCriterion

Too big rooms. This criterion counts cases where a class is placed in a room that is too big for the class. In general, a room is discouraged (in this criterion) if it has 25% more space than needed, strongly discouraged if it has more than 50% space than needed. Needed space is counted as the space of the smallest room in which a class can take place.

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
TooBigRooms()

Method Summary

Modifier and Type	Method and Description
double[]	getBounds(Collection<Lecture> variables) Value bounds (minimum and maximum) of the criterion on a part of the problem
static long	getDiscouragedRoomSize(Placement value)
String	getPlacementSelectionWeightName()
static long	getStronglyDiscouragedRoomSize(Placement value)
static int	getTooBigRoomPreference(Placement value)
double	getValue(Placement value, Set<Placement> conflicts) Value of a proposed assignment (including hard conflicts)
double	getWeightDefault(DataProperties config) Defines default weight (when AbstractCriterion.getWeightName() parameter is not present in the criterion).

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

getAbbreviation, getPlacementSelectionWeight, getPlacementSelectionWeightDefault, init, toString

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

afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getBounds, getInfo, getInfo, 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

TooBigRooms

public TooBigRooms()

Method Detail

getWeightDefault

public double getWeightDefault(DataProperties config)

Description copied from class: AbstractCriterion

Defines default weight (when AbstractCriterion.getWeightName() parameter is not present in the criterion).

Overrides:

getWeightDefault in class AbstractCriterion<Lecture,Placement>

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)

getBounds

public double[] getBounds(Collection<Lecture> variables)

Description copied from interface: Criterion

Value bounds (minimum and maximum) of the criterion on a part of the problem

Specified by:

getBounds in interface Criterion<Lecture,Placement>

Overrides:

getBounds in class AbstractCriterion<Lecture,Placement>

getDiscouragedRoomSize

public static long getDiscouragedRoomSize(Placement value)

getStronglyDiscouragedRoomSize

public static long getStronglyDiscouragedRoomSize(Placement value)

getTooBigRoomPreference

public static int getTooBigRoomPreference(Placement value)