net.sf.cpsolver.coursett.criteria.placement
Class DeltaTimePreference

java.lang.Object
  extended by net.sf.cpsolver.ifs.criteria.AbstractCriterion<Lecture,Placement>
      extended by net.sf.cpsolver.coursett.criteria.TimetablingCriterion
          extended by net.sf.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion
              extended by net.sf.cpsolver.coursett.criteria.placement.DeltaTimePreference
All Implemented Interfaces:
Criterion<Lecture,Placement>, InfoProvider<Lecture>, 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 1.2 (University Course Timetabling)
Copyright (C) 2006 - 2011 Tomas Muller
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
DeltaTimePreference()
           
 
Method Summary
 double getPlacementSelectionWeightDefault(int level)
           
 String getPlacementSelectionWeightName()
           
 double getValue(Placement value, Set<Placement> conflicts)
          Value of a proposed assignment (including hard conflicts)
 boolean init(Solver<Lecture,Placement> solver)
          Notification that the model was initialized by the solver.
 
Methods inherited from class net.sf.cpsolver.coursett.criteria.placement.PlacementSelectionCriterion
getInfo, getInfo, getWeightDefault
 
Methods inherited from class net.sf.cpsolver.coursett.criteria.TimetablingCriterion
getPlacementSelectionWeight
 
Methods inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion
afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getBounds, getBounds, 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, toString, wait, wait, wait
 

Constructor Detail

DeltaTimePreference

public DeltaTimePreference()
Method Detail

init

public boolean init(Solver<Lecture,Placement> solver)
Description copied from interface: ModelListener
Notification that the model was initialized by the solver.

Specified by:
init in interface ModelListener<Lecture,Placement>
Overrides:
init in class TimetablingCriterion
Parameters:
solver - IFS solver

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)


getPlacementSelectionWeightDefault

public double getPlacementSelectionWeightDefault(int level)
Overrides:
getPlacementSelectionWeightDefault in class TimetablingCriterion


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