net.sf.cpsolver.coursett.criteria.additional

Class QuadraticStudentConflict

java.lang.Object

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

net.sf.cpsolver.coursett.criteria.TimetablingCriterion

net.sf.cpsolver.coursett.criteria.StudentConflict

net.sf.cpsolver.coursett.criteria.additional.QuadraticStudentConflict

All Implemented Interfaces:

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

Direct Known Subclasses:

QuadraticStudentHardConflict

public class QuadraticStudentConflict
extends StudentConflict

Quadratic student conflicts. Same as StudentConflict, however, student joint enrollments are squared (1 conflict counts as 1, 2 as 4, 3 as 9, etc.).

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.coursett.criteria.StudentConflict

iIncludeConflicts

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

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

Constructor Summary

Constructors

Constructor and Description
QuadraticStudentConflict()

Method Summary

Modifier and Type	Method and Description
String	getPlacementSelectionWeightName()
double	getWeightDefault(DataProperties config) Defines default weight (when AbstractCriterion.getWeightName() parameter is not present in the criterion).
void	incJenrl(JenrlConstraint jenrl, double studentWeight, Double conflictPriority, Student student)
boolean	isApplicable(Lecture l1, Lecture l2)
protected double	jointEnrollment(JenrlConstraint jenrl)

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

applicable, applicable, bestRestored, committed, committed, distance, getBounds, getBounds, getMetrics, getValue, getValue, getValue, hard, hard, ignore, ignore, inConflict, init, overlaps

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

getAbbreviation, getPlacementSelectionWeight, getPlacementSelectionWeightDefault, toString

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

afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getInfo, getInfo, getModel, getName, getPerc, getPercRev, 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

QuadraticStudentConflict

public QuadraticStudentConflict()

Method Detail

isApplicable

public boolean isApplicable(Lecture l1,
                            Lecture l2)

Overrides:

isApplicable in class StudentConflict

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 StudentConflict

jointEnrollment

protected double jointEnrollment(JenrlConstraint jenrl)

Overrides:

jointEnrollment in class StudentConflict

incJenrl

public void incJenrl(JenrlConstraint jenrl,
                     double studentWeight,
                     Double conflictPriority,
                     Student student)

Overrides:

incJenrl in class StudentConflict