public class DistributionPenalty extends ExamCriterion
ExamDistributionConstraint
) can be set by problem property
Exams.RoomDistributionWeight, or in the input xml file, property
roomDistributionWeight.
AbstractCriterion.ValueContext, AbstractCriterion.ValueUpdateType
Modifier and Type | Field and Description |
---|---|
protected Integer |
iSoftDistributions |
iBest, iDebug, iWeight, sDoubleFormat, sPercentFormat
sMaxSize
Constructor and Description |
---|
DistributionPenalty() |
Modifier and Type | Method and Description |
---|---|
protected double[] |
computeBounds(Assignment<Exam,ExamPlacement> assignment)
Compute bounds (bounds are being cached by default).
|
double |
getPeriodValue(Assignment<Exam,ExamPlacement> assignment,
ExamPlacement value)
Period related distribution penalty, i.e., sum weights of violated
distribution constraints
|
double |
getRoomValue(Assignment<Exam,ExamPlacement> assignment,
ExamPlacement value)
Room related distribution penalty, i.e., sum weights of violated
distribution constraints
|
double |
getValue(Assignment<Exam,ExamPlacement> assignment,
Collection<Exam> variables)
Value of a part of the problem (given by the collection of variables)
|
double |
getValue(Assignment<Exam,ExamPlacement> assignment,
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.
|
void |
inc(Assignment<Exam,ExamPlacement> assignment,
double value)
Outside update of the criterion (usefull when the criterion is driven by a set of constraints).
|
boolean |
init(Solver<Exam,ExamPlacement> solver)
Notification that the model was initialized by the solver.
|
boolean |
isPeriodCriterion()
True if this criterion is based on period assignment.
|
boolean |
isRoomCriterion()
True if this criterion is based on room assignment.
|
String |
toString(Assignment<Exam,ExamPlacement> assignment)
Simple text representation of the criterion and its value.
|
getBounds, getInfo, getXmlParameters, setWeight, setXmlParameters
afterAssigned, afterUnassigned, beforeAssigned, beforeUnassigned, bestRestored, bestSaved, clearCache, configure, constraintAdded, constraintRemoved, createAssignmentContext, getAbbreviation, getAssignmentContextReference, getBest, getBounds, getBounds, getBounds, getContext, getContext, getExtendedInfo, getInfo, getModel, getName, getPerc, getPercentage, getPercRev, getValue, getValue, getValue, getValueUpdateType, getWeight, getWeightedBest, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, getWeightedValue, inc, setAssignmentContextReference, setModel, setValueUpdateType, variableAdded, variableRemoved
protected Integer iSoftDistributions
public DistributionPenalty()
public boolean init(Solver<Exam,ExamPlacement> solver)
ModelListener
init
in interface ModelListener<Exam,ExamPlacement>
init
in class AbstractCriterion<Exam,ExamPlacement>
solver
- IFS solverpublic String getWeightName()
AbstractCriterion
getWeightName
in class ExamCriterion
public String getXmlWeightName()
ExamCriterion
getXmlWeightName
in class ExamCriterion
public double getWeightDefault(DataProperties config)
AbstractCriterion
AbstractCriterion.getWeightName()
parameter is not present in the criterion).getWeightDefault
in class AbstractCriterion<Exam,ExamPlacement>
config
- solver configurationpublic double getValue(Assignment<Exam,ExamPlacement> assignment, ExamPlacement value, Set<ExamPlacement> conflicts)
Criterion
assignment
- current assignmentvalue
- given valueconflicts
- values conflicting with the given valuepublic boolean isRoomCriterion()
ExamCriterion
ExamPlacement.getRoomCost(Assignment)
.isRoomCriterion
in class ExamCriterion
public double getRoomValue(Assignment<Exam,ExamPlacement> assignment, ExamPlacement value)
getRoomValue
in class ExamCriterion
assignment
- current assignmentvalue
- new assignment in questionpublic double getValue(Assignment<Exam,ExamPlacement> assignment, Collection<Exam> variables)
Criterion
getValue
in interface Criterion<Exam,ExamPlacement>
getValue
in class AbstractCriterion<Exam,ExamPlacement>
assignment
- current assignmentvariables
- list of problem variablespublic boolean isPeriodCriterion()
ExamCriterion
ExamPlacement.getTimeCost(Assignment)
.isPeriodCriterion
in class ExamCriterion
public void inc(Assignment<Exam,ExamPlacement> assignment, double value)
Criterion
inc
in interface Criterion<Exam,ExamPlacement>
inc
in class AbstractCriterion<Exam,ExamPlacement>
assignment
- current assignmentvalue
- increment criterion by this valuepublic double getPeriodValue(Assignment<Exam,ExamPlacement> assignment, ExamPlacement value)
getPeriodValue
in class ExamCriterion
assignment
- current assignmentvalue
- new assignment in questionprotected double[] computeBounds(Assignment<Exam,ExamPlacement> assignment)
AbstractCriterion
computeBounds
in class AbstractCriterion<Exam,ExamPlacement>
assignment
- current assignmentpublic String toString(Assignment<Exam,ExamPlacement> assignment)
AbstractCriterion
AbstractCriterion.getAbbreviation()
and x is the current value AbstractCriterion.getValue(Assignment)
.toString
in interface Criterion<Exam,ExamPlacement>
toString
in class AbstractCriterion<Exam,ExamPlacement>
assignment
- current assignment