org.cpsolver.ifs.criteria

Class AbstractCriterion.ValueContext

java.lang.Object

org.cpsolver.ifs.criteria.AbstractCriterion.ValueContext

All Implemented Interfaces:

AssignmentContext

Direct Known Subclasses:

AssignmentCount.AssignmentCountContext, ExamRotationPenalty.RotationContext, InstructorFairness.InstructorFairnessContext, InstructorLunchBreak.InstructorLunchBreakContext, RoomSplitDistancePenalty.RoomSplitContext, RoomSplitPenalty.RoomSplitContext, WeightedHardConflicts.IterationContext

Enclosing class:

AbstractCriterion<V extends Variable<V,T>,T extends Value<V,T>>

public class AbstractCriterion.ValueContext
extends Object
implements AssignmentContext

Assignment context holding current value and the cached bounds.

Field Summary

Fields

Modifier and Type	Field and Description
protected double	iTotal

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ValueContext()
protected	ValueContext(Assignment<V,T> assignment) Create from an assignment

Method Summary

Modifier and Type	Method and Description
protected void	assigned(Assignment<V,T> assignment, T value) Update value when assigned
protected double[]	getBounds(Assignment<V,T> assignment) Return bounds
double	getTotal() Return value
void	inc(double value) Increment value
protected void	setBounds(double[] bounds) Set bounds
void	setTotal(double value) Set value
protected void	unassigned(Assignment<V,T> assignment, T value) Update value when unassigned

Methods inherited from class java.lang.Object

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

Field Detail

iTotal

protected double iTotal

Constructor Detail

ValueContext

protected ValueContext(Assignment<V,T> assignment)

Create from an assignment

Parameters:

assignment - current assignment

ValueContext

protected ValueContext()

Method Detail

unassigned

protected void unassigned(Assignment<V,T> assignment,
                          T value)

Update value when unassigned

Parameters:

assignment - current assignment

value - recently unassigned value

assigned

protected void assigned(Assignment<V,T> assignment,
                        T value)

Update value when assigned

Parameters:

assignment - current assignment

value - recently assigned value

getTotal

public double getTotal()

Return value

Returns:

current value of the criterion

setTotal

public void setTotal(double value)

Set value

Parameters:

value - current value of the criterion

inc

public void inc(double value)

Increment value

Parameters:

value - increment

getBounds

protected double[] getBounds(Assignment<V,T> assignment)

Return bounds

Parameters:

assignment - current assignment

Returns:

minimum and maximum of this criterion's value

setBounds

protected void setBounds(double[] bounds)

Set bounds

Parameters:

bounds - bounds to cache