org.cpsolver.instructor.model

Class Instructor.Context

java.lang.Object

org.cpsolver.instructor.model.Instructor.Context

All Implemented Interfaces:

AssignmentConstraintContext<TeachingRequest.Variable,TeachingAssignment>, AssignmentContext

Enclosing class:

Instructor

public class Instructor.Context
extends Object
implements AssignmentConstraintContext<TeachingRequest.Variable,TeachingAssignment>

Instructor Constraint Context. It keeps the list of current assignments of an instructor.

Constructor Summary

Constructors

Constructor and Description
Context(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment) Constructor
Context(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment, Instructor.Context parentContext) Constructor

Method Summary

Modifier and Type	Method and Description
void	assigned(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment, TeachingAssignment value) Called when ConstraintWithContext.assigned(Assignment, long, Value) is called to update the content of the context.
int	countAssignmentsWithTime() Number of teaching assignments that have a time assignment of this instructor
double	countBackToBackPercentage() Current back-to-back percentage for this instructor
double	countBackToBackPreference(double diffRoomWeight, double diffTypeWeight) Current back-to-back preference of the instructor (using TeachingRequest.countBackToBacks(TeachingRequest, double, double))
double	countDifferentLectures() Percentage of common sections that are not same for the instructor (using TeachingRequest.nrSameLectures(TeachingRequest))
double	countSameCommonPenalty() Compute same common penalty between all requests of this instructor
double	countSameCoursePenalty() Compute same course penalty between all requests of this instructor
double	countSameDaysPercentage() Current same days percentage for this instructor
double	countSameDaysPreference(double diffRoomWeight, double diffTypeWeight) Current same days preference of the instructor (using TeachingRequest.countSameDays(TeachingRequest, double, double))
double	countSameRoomPercentage() Current same room percentage for this instructor
double	countSameRoomPreference(double diffTypeWeight) Current same room preference of the instructor (using TeachingRequest.countSameRooms(TeachingRequest, double))
int	countTimeOverlaps() If there are classes that allow for overlap, the number of such overlapping slots of this instructor
Set<TeachingAssignment>	getAssignments() Current assignments of this instructor
Instructor	getInstructor() Instructor
float	getLoad() Current load of this instructor
float	getUnusedLoad() Current unused load of this instructor
void	unassigned(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment, TeachingAssignment value) Called when ConstraintWithContext.unassigned(Assignment, long, Value) is called to update the content of the context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Context

public Context(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment)

Constructor

Parameters:

assignment - current assignment

Context

public Context(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment,
               Instructor.Context parentContext)

Constructor

Parameters:

assignment - current assignment

parentContext - parent context

Method Detail

getInstructor

public Instructor getInstructor()

Instructor

Returns:

instructor of this context

assigned

public void assigned(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment,
                     TeachingAssignment value)

Description copied from interface: AssignmentConstraintContext

Called when ConstraintWithContext.assigned(Assignment, long, Value) is called to update the content of the context.

Specified by:

assigned in interface AssignmentConstraintContext<TeachingRequest.Variable,TeachingAssignment>

Parameters:

assignment - current assignment (with which this context is associated)

value - assigned value

unassigned

public void unassigned(Assignment<TeachingRequest.Variable,TeachingAssignment> assignment,
                       TeachingAssignment value)

Description copied from interface: AssignmentConstraintContext

Called when ConstraintWithContext.unassigned(Assignment, long, Value) is called to update the content of the context.

Specified by:

unassigned in interface AssignmentConstraintContext<TeachingRequest.Variable,TeachingAssignment>

Parameters:

assignment - current assignment (with which this context is associated)

value - unassigned value

getAssignments

public Set<TeachingAssignment> getAssignments()

Current assignments of this instructor

Returns:

current teaching assignments

getLoad

public float getLoad()

Current load of this instructor

Returns:

current load

getUnusedLoad

public float getUnusedLoad()

Current unused load of this instructor

Returns:

zero if the instructor is not being used, difference between Instructor.getMaxLoad() and getLoad() otherwise

countTimeOverlaps

public int countTimeOverlaps()

If there are classes that allow for overlap, the number of such overlapping slots of this instructor

Returns:

current time overlaps (number of overlapping slots)

countAssignmentsWithTime

public int countAssignmentsWithTime()

Number of teaching assignments that have a time assignment of this instructor

Returns:

current number of teaching assignments that have a time

countDifferentLectures

public double countDifferentLectures()

Percentage of common sections that are not same for the instructor (using TeachingRequest.nrSameLectures(TeachingRequest))

Returns:

percentage of pairs of common sections that are not the same

countBackToBackPreference

public double countBackToBackPreference(double diffRoomWeight,
                                        double diffTypeWeight)

Current back-to-back preference of the instructor (using TeachingRequest.countBackToBacks(TeachingRequest, double, double))

Parameters:

diffRoomWeight - different room weight

diffTypeWeight - different instructional type weight

Returns:

current back-to-back preference

countBackToBackPercentage

public double countBackToBackPercentage()

Current back-to-back percentage for this instructor

Returns:

percentage of assignments that are back-to-back

countSameDaysPreference

public double countSameDaysPreference(double diffRoomWeight,
                                      double diffTypeWeight)

Current same days preference of the instructor (using TeachingRequest.countSameDays(TeachingRequest, double, double))

Parameters:

diffRoomWeight - different room weight

diffTypeWeight - different instructional type weight

Returns:

current same days preference

countSameDaysPercentage

public double countSameDaysPercentage()

Current same days percentage for this instructor

Returns:

percentage of assignments that are back-to-back

countSameRoomPreference

public double countSameRoomPreference(double diffTypeWeight)

Current same room preference of the instructor (using TeachingRequest.countSameRooms(TeachingRequest, double))

Parameters:

diffTypeWeight - different instructional type weight

Returns:

current same room preference

countSameRoomPercentage

public double countSameRoomPercentage()

Current same room percentage for this instructor

Returns:

percentage of assignments that are back-to-back

countSameCoursePenalty

public double countSameCoursePenalty()

Compute same course penalty between all requests of this instructor

Returns:

same course penalty

countSameCommonPenalty

public double countSameCommonPenalty()

Compute same common penalty between all requests of this instructor

Returns:

same common penalty