net.sf.cpsolver.exam.criteria
Class RoomSplitPenalty

java.lang.Object
  extended by net.sf.cpsolver.ifs.criteria.AbstractCriterion<Exam,ExamPlacement>
      extended by net.sf.cpsolver.exam.criteria.ExamCriterion
          extended by net.sf.cpsolver.exam.criteria.RoomSplitPenalty
All Implemented Interfaces:
Criterion<Exam,ExamPlacement>, InfoProvider<Exam>, ModelListener<Exam,ExamPlacement>

public class RoomSplitPenalty
extends ExamCriterion

Cost for using more than one room (nrSplits^2).

A weight for room split penalty can be set by problem property Exams.RoomSplitWeight, or in the input xml file, property roomSplitWeight.

Version:
ExamTT 1.2 (Examination Timetabling)
Copyright (C) 2008 - 2012 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
RoomSplitPenalty()
           
 
Method Summary
 void afterAssigned(long iteration, ExamPlacement value)
          Called after a value is assigned to its variable ( Value.variable()).
 void beforeUnassigned(long iteration, ExamPlacement value)
          Called before a value is unassigned from its variable ( Value.variable()).
 void getInfo(Map<String,String> info)
          Adds some information into the table with information about the solution
 double getValue(ExamPlacement value, Set<ExamPlacement> 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).
 String getWeightName()
          Defines weight name (to be used to get the criterion weight from the configuration).
 String getXmlWeightName()
          Name of the weight parameter in the parameters section of the examination XML file.
 boolean isPeriodCriterion()
          True if this criterion is based on period assignment.
 String toString()
           
 
Methods inherited from class net.sf.cpsolver.exam.criteria.ExamCriterion
getBounds, getPeriodValue, getRoomValue, getXmlParameters, isRoomCriterion, setWeight, setXmlParameters
 
Methods inherited from class net.sf.cpsolver.ifs.criteria.AbstractCriterion
afterUnassigned, beforeAssigned, bestRestored, bestSaved, clearCache, computeBounds, constraintAdded, constraintRemoved, getBest, getBounds, getInfo, getModel, getName, getPerc, getPercRev, getValue, getValue, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, inc, init, variableAdded, variableRemoved
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

RoomSplitPenalty

public RoomSplitPenalty()
Method Detail

getWeightName

public String getWeightName()
Description copied from class: AbstractCriterion
Defines weight name (to be used to get the criterion weight from the configuration).

Overrides:
getWeightName in class ExamCriterion

getXmlWeightName

public String getXmlWeightName()
Description copied from class: ExamCriterion
Name of the weight parameter in the parameters section of the examination XML file.

Overrides:
getXmlWeightName in class ExamCriterion

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<Exam,ExamPlacement>

getValue

public double getValue(ExamPlacement value,
                       Set<ExamPlacement> conflicts)
Description copied from interface: Criterion
Value of a proposed assignment (including hard conflicts)


beforeUnassigned

public void beforeUnassigned(long iteration,
                             ExamPlacement value)
Description copied from interface: ModelListener
Called before a value is unassigned from its variable ( Value.variable()).

Specified by:
beforeUnassigned in interface ModelListener<Exam,ExamPlacement>
Overrides:
beforeUnassigned in class AbstractCriterion<Exam,ExamPlacement>
Parameters:
iteration - current iteration
value - value to be unassigned

afterAssigned

public void afterAssigned(long iteration,
                          ExamPlacement value)
Description copied from interface: ModelListener
Called after a value is assigned to its variable ( Value.variable()).

Specified by:
afterAssigned in interface ModelListener<Exam,ExamPlacement>
Overrides:
afterAssigned in class AbstractCriterion<Exam,ExamPlacement>
Parameters:
iteration - current iteration
value - value to be assigned

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<Exam>
Overrides:
getInfo in class ExamCriterion

toString

public String toString()
Overrides:
toString in class Object

isPeriodCriterion

public boolean isPeriodCriterion()
Description copied from class: ExamCriterion
True if this criterion is based on period assignment. Used by ExamPlacement.getTimeCost().

Overrides:
isPeriodCriterion in class ExamCriterion


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