org.cpsolver.studentsct.extension

Class DistanceConflict.DistanceConflictContext

java.lang.Object

org.cpsolver.studentsct.extension.DistanceConflict.DistanceConflictContext

All Implemented Interfaces:

AssignmentConstraintContext<Request,Enrollment>, AssignmentContext

Enclosing class:

DistanceConflict

public class DistanceConflict.DistanceConflictContext
extends Object
implements AssignmentConstraintContext<Request,Enrollment>

Constructor Summary

Constructors

Constructor and Description
DistanceConflictContext(Assignment<Request,Enrollment> assignment)
DistanceConflictContext(DistanceConflict.DistanceConflictContext parent)

Method Summary

Modifier and Type	Method and Description
void	afterAssigned(Assignment<Request,Enrollment> assignment, long iteration, Enrollment value) Called after a value is assigned to a variable.
void	afterUnassigned(Assignment<Request,Enrollment> assignment, long iteration, Enrollment value) Called after a value is unassigned from a variable.
void	assigned(Assignment<Request,Enrollment> assignment, Enrollment value) Called when a value is assigned to a variable.
void	beforeAssigned(Assignment<Request,Enrollment> assignment, long iteration, Enrollment value) Called before a value is assigned to a variable.
Set<DistanceConflict.Conflict>	getAllConflicts() Return a set of all distance conflicts (DistanceConflict.Conflict objects).
int	getTotalNrConflicts() Actual number of all distance conflicts
int	getTotalNrShortConflicts() Actual number of all distance conflicts of students that need short distances
void	checkAllConflicts(Assignment<Request,Enrollment> assignment) Checks the counter counting all conflicts
int	nrAllConflicts(Assignment<Request,Enrollment> assignment, Enrollment enrollment) Total sum of all conflict of the given enrollment and other enrollments that are assigned to the same student.
void	unassigned(Assignment<Request,Enrollment> assignment, Enrollment value) Called when a value is unassigned from a variable.

Methods inherited from class java.lang.Object

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

Constructor Detail

DistanceConflictContext

public DistanceConflictContext(Assignment<Request,Enrollment> assignment)

DistanceConflictContext

public DistanceConflictContext(DistanceConflict.DistanceConflictContext parent)

Method Detail

beforeAssigned

public void beforeAssigned(Assignment<Request,Enrollment> assignment,
                           long iteration,
                           Enrollment value)

Called before a value is assigned to a variable.

Parameters:

assignment - current assignment

iteration - current iteration

value - value to be assigned

afterAssigned

public void afterAssigned(Assignment<Request,Enrollment> assignment,
                          long iteration,
                          Enrollment value)

Called after a value is assigned to a variable.

Parameters:

assignment - current assignment

iteration - current iteration

value - value that was assigned

afterUnassigned

public void afterUnassigned(Assignment<Request,Enrollment> assignment,
                            long iteration,
                            Enrollment value)

Called after a value is unassigned from a variable.

Parameters:

assignment - current assignment

iteration - current iteration

value - value to be unassigned

assigned

public void assigned(Assignment<Request,Enrollment> assignment,
                     Enrollment value)

Called when a value is assigned to a variable. Internal number of distance conflicts is updated, see DistanceConflict.getTotalNrConflicts(Assignment).

Specified by:

assigned in interface AssignmentConstraintContext<Request,Enrollment>

Parameters:

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

value - assigned value

unassigned

public void unassigned(Assignment<Request,Enrollment> assignment,
                       Enrollment value)

Called when a value is unassigned from a variable. Internal number of distance conflicts is updated, see DistanceConflict.getTotalNrConflicts(Assignment).

Specified by:

unassigned in interface AssignmentConstraintContext<Request,Enrollment>

Parameters:

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

value - unassigned value

checkAllConflicts

public void checkAllConflicts(Assignment<Request,Enrollment> assignment)

Checks the counter counting all conflicts

Parameters:

assignment - current assignment

getTotalNrConflicts

public int getTotalNrConflicts()

Actual number of all distance conflicts

Returns:

number of all distance conflicts

getTotalNrShortConflicts

public int getTotalNrShortConflicts()

Actual number of all distance conflicts of students that need short distances

Returns:

number of all distance conflicts

getAllConflicts

public Set<DistanceConflict.Conflict> getAllConflicts()

Return a set of all distance conflicts (DistanceConflict.Conflict objects).

Returns:

all distance conflicts

nrAllConflicts

public int nrAllConflicts(Assignment<Request,Enrollment> assignment,
                          Enrollment enrollment)

Total sum of all conflict of the given enrollment and other enrollments that are assigned to the same student.

Parameters:

assignment - current assignment

enrollment - given enrollment

Returns:

number of all conflict of the given enrollment