net.sf.cpsolver.coursett.criteria.additional

Class InstructorStudentHardConflict

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.InstructorStudentConflict

net.sf.cpsolver.coursett.criteria.additional.InstructorStudentHardConflict

All Implemented Interfaces:

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

public class InstructorStudentHardConflict
extends InstructorStudentConflict

Instructor student conflicts. This criterion penalizes cases when an instructor (of a class) is attending some other class as a student and there is a conflict between the two classes. Also, there is no alternative for the student class (the conflict cannot be sectioned away).
To enable instructor student conflicts, set solver parameter Global.LoadStudentInstructorConflicts to true. Also student course requests should be used in this case (to be able to match an instructor external id to a student external id).
Hard instructor student conflicts are weighted by Comparator.InstructorHardStudentConflictWeight.

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
InstructorStudentHardConflict()

Method Summary

Modifier and Type	Method and Description
void	getInfo(Map<String,String> info) Adds some information into the table with information about the solution
void	getInfo(Map<String,String> info, Collection<Lecture> variables) Adds some information into the table with information about the solution, only consider variables from the given set
String	getPlacementSelectionWeightName()
double	getWeightDefault(DataProperties config) Defines default weight (when AbstractCriterion.getWeightName() parameter is not present in the criterion).
boolean	isApplicable(Lecture l1, Lecture l2)
static boolean	oneInstructorOtherHard(Lecture l1, Lecture l2) One of the lectures is hard, there is a joint enrollment constraint between them, and there is at least one student that is instructor for one lecture and the other lecture is singleton.

Methods inherited from class net.sf.cpsolver.coursett.criteria.additional.InstructorStudentConflict

incJenrl, inConflict, instructor, jointEnrollment

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, 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, 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

InstructorStudentHardConflict

public InstructorStudentHardConflict()

Method Detail

isApplicable

public boolean isApplicable(Lecture l1,
                            Lecture l2)

Overrides:

isApplicable in class StudentConflict

oneInstructorOtherHard

public static boolean oneInstructorOtherHard(Lecture l1,
                                             Lecture l2)

One of the lectures is hard, there is a joint enrollment constraint between them, and there is at least one student that is instructor for one lecture and the other lecture is singleton.

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 InstructorStudentConflict

getPlacementSelectionWeightName

public String getPlacementSelectionWeightName()

Overrides:

getPlacementSelectionWeightName in class InstructorStudentConflict

getInfo

public void getInfo(Map<String,String> info)

Description copied from interface: InfoProvider

Adds some information into the table with information about the solution

Specified by:

getInfo in interface InfoProvider<Lecture>

Overrides:

getInfo in class InstructorStudentConflict

getInfo

public void getInfo(Map<String,String> info,
                    Collection<Lecture> variables)

Description copied from interface: InfoProvider

Adds some information into the table with information about the solution, only consider variables from the given set

Specified by:

getInfo in interface InfoProvider<Lecture>

Overrides:

getInfo in class InstructorStudentConflict