org.cpsolver.coursett.criteria.placement

Class PotentialHardConflicts

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.WeightedHardConflicts

org.cpsolver.coursett.criteria.placement.PotentialHardConflicts

All Implemented Interfaces:

CanHoldContext, HasAssignmentContext<Lecture,Placement,AbstractCriterion.ValueContext>, Criterion<Lecture,Placement>, ExtendedInfoProvider<Lecture,Placement>, InfoProvider<Lecture,Placement>, ModelListener<Lecture,Placement>, SolutionListener<Lecture,Placement>

public class PotentialHardConflicts
extends WeightedHardConflicts

Use conflict-based statistics to compute potential hard conflicts.

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.coursett.criteria.placement.WeightedHardConflicts

WeightedHardConflicts.IterationContext

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

AbstractCriterion.ValueContext, AbstractCriterion.ValueUpdateType

Field Summary

Fields inherited from class org.cpsolver.coursett.criteria.placement.WeightedHardConflicts

iStat

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
PotentialHardConflicts()

Method Summary

Modifier and Type	Method and Description
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.WeightedHardConflicts

bestCleared, bestRestored, bestSaved, createAssignmentContext, getInfo, getInfo, init, solutionUpdated

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

getInfo, getInfo, getWeightDefault

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

configure, getPlacementSelectionAdjustmentsName, getPlacementSelectionWeight

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

afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, 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, 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

PotentialHardConflicts

public PotentialHardConflicts()

Method Detail

getPlacementSelectionWeightName

public String getPlacementSelectionWeightName()

Overrides:

getPlacementSelectionWeightName in class WeightedHardConflicts

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)

Specified by:

getValue in interface Criterion<Lecture,Placement>

Overrides:

getValue in class WeightedHardConflicts

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 WeightedHardConflicts