org.cpsolver.studentsct.online.selection

Class SuggestionSelection.Selection

java.lang.Object

org.cpsolver.studentsct.heuristics.selection.BranchBoundSelection.Selection

org.cpsolver.studentsct.online.selection.SuggestionSelection.Selection

Enclosing class:

SuggestionSelection

public class SuggestionSelection.Selection
extends BranchBoundSelection.Selection

Extension of BranchBoundSelection.Selection including checking of required free times and sections.

Field Summary

Fields inherited from class org.cpsolver.studentsct.heuristics.selection.BranchBoundSelection.Selection

iAssignment, iBestAssignment, iBestValue, iCurrentAssignment, iStudent, iT0, iT1, iTimeoutReached, iTimesToAvoid, iValues

Constructor Summary

Constructors

Constructor and Description
Selection(Student student, Assignment<Request,Enrollment> assignment)

Method Summary

Modifier and Type	Method and Description
protected boolean	canLeaveUnassigned(Request request) Returns true if the given request can be left unassigned
Enrollment	firstConflict(int idx, Enrollment enrollment) First conflicting enrollment
protected double	getBound(Request r) Return bound of a request
protected double	getWeight(Enrollment enrollment, Set<DistanceConflict.Conflict> distanceConflicts, Set<TimeOverlapsCounter.Conflict> timeOverlappingConflicts) Deprecated.
boolean	inConflict(int idx, Enrollment enrollment) True if the enrollment is conflicting
boolean	isAllowed(int idx, Enrollment enrollment) Check if the given enrollment is allowed
protected List<Enrollment>	values(CourseRequest request) Returns list of available enrollments for a course request

Methods inherited from class org.cpsolver.studentsct.heuristics.selection.BranchBoundSelection.Selection

backTrack, canAssign, getAssignmentPenalty, getBestAssignment, getBestNrAssigned, getBestValue, getBound, getDistanceConflicts, getNrAssigned, getNrAssignedBound, getPenalty, getPenaltyBound, getStudentQualityConflicts, getTime, getTimeOverlappingConflicts, getValue, getWeight, isTimeoutReached, saveBest, select

Methods inherited from class java.lang.Object

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

Constructor Detail

Selection

public Selection(Student student,
                 Assignment<Request,Enrollment> assignment)

Method Detail

isAllowed

public boolean isAllowed(int idx,
                         Enrollment enrollment)

Check if the given enrollment is allowed

Parameters:

idx - enrollment index

enrollment - enrollment

Returns:

true if allowed (there is no conflict with required sections or free times)

inConflict

public boolean inConflict(int idx,
                          Enrollment enrollment)

Description copied from class: BranchBoundSelection.Selection

True if the enrollment is conflicting

Overrides:

inConflict in class BranchBoundSelection.Selection

Parameters:

idx - index of request

enrollment - enrollment in question

Returns:

true if there is a conflict with previous enrollments

firstConflict

public Enrollment firstConflict(int idx,
                                Enrollment enrollment)

Description copied from class: BranchBoundSelection.Selection

First conflicting enrollment

Overrides:

firstConflict in class BranchBoundSelection.Selection

Parameters:

idx - index of request

enrollment - enrollment in question

Returns:

first conflicting enrollment

canLeaveUnassigned

protected boolean canLeaveUnassigned(Request request)

Description copied from class: BranchBoundSelection.Selection

Returns true if the given request can be left unassigned

Overrides:

canLeaveUnassigned in class BranchBoundSelection.Selection

Parameters:

request - given request

Returns:

true if can be left unassigned

values

protected List<Enrollment> values(CourseRequest request)

Description copied from class: BranchBoundSelection.Selection

Returns list of available enrollments for a course request

Overrides:

values in class BranchBoundSelection.Selection

Parameters:

request - given request

Returns:

list of enrollments to consider

getWeight

@Deprecated
protected double getWeight(Enrollment enrollment,
                                       Set<DistanceConflict.Conflict> distanceConflicts,
                                       Set<TimeOverlapsCounter.Conflict> timeOverlappingConflicts)

Deprecated.

Description copied from class: BranchBoundSelection.Selection

Weight of an assignment. Unlike StudentWeights.getWeight(Assignment, Enrollment, Set, Set), only count this side of distance conflicts and time overlaps.

Overrides:

getWeight in class BranchBoundSelection.Selection

Parameters:

enrollment - an enrollment

distanceConflicts - set of distance conflicts

timeOverlappingConflicts - set of time overlapping conflicts

Returns:

value of the assignment

getBound

protected double getBound(Request r)

Description copied from class: BranchBoundSelection.Selection

Return bound of a request

Overrides:

getBound in class BranchBoundSelection.Selection

Parameters:

r - a request

Returns:

bound