Package ai.timefold.solver.examples.machinereassignment.score

Class MachineReassignmentConstraintProvider

java.lang.Object

ai.timefold.solver.examples.machinereassignment.score.MachineReassignmentConstraintProvider

All Implemented Interfaces:

ai.timefold.solver.core.api.score.stream.ConstraintProvider

public class MachineReassignmentConstraintProvider
extends Object
implements ai.timefold.solver.core.api.score.stream.ConstraintProvider

Constructor Summary

Constructors

Constructor	Description
MachineReassignmentConstraintProvider()

Method Summary

Modifier and Type	Method	Description
protected ai.timefold.solver.core.api.score.stream.Constraint	balanceCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	availability(r) = capacity(m, r) - usage(m, r) balanceCost = sum(max(0, multiplier * availability(m, r1) - availability(m, r2)))
ai.timefold.solver.core.api.score.stream.Constraint[]	defineConstraints(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)
protected ai.timefold.solver.core.api.score.stream.Constraint	loadCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Load: The safety capacity for each resource for each machine should not be exceeded.
protected ai.timefold.solver.core.api.score.stream.Constraint	machineMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Machine move cost: Moving a process from machine A to machine B has another A-B specific move cost.
protected ai.timefold.solver.core.api.score.stream.Constraint	maximumCapacity(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Maximum capacity: The maximum capacity for each resource for each machine must not be exceeded.
protected ai.timefold.solver.core.api.score.stream.Constraint	processMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Process move cost: A process has a move cost.
protected ai.timefold.solver.core.api.score.stream.Constraint	serviceConflict(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)
protected ai.timefold.solver.core.api.score.stream.Constraint	serviceDependency(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Dependency: The processes of a service depending on another service must run in the neighborhood of a process of the other service.
protected ai.timefold.solver.core.api.score.stream.Constraint	serviceLocationSpread(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Spread: Processes of the same service must be serviceLocationSpread out across locations.
protected ai.timefold.solver.core.api.score.stream.Constraint	serviceMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Service move cost: A service has a move cost.
protected ai.timefold.solver.core.api.score.stream.Constraint	transientUsage(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)	Transient usage: Some resources are transient and count towards the maximum capacity of both the original machine as the newly assigned machine.

Methods inherited from class java.lang.Object

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

Constructor Details

MachineReassignmentConstraintProvider

public MachineReassignmentConstraintProvider()

Method Details

defineConstraints

public ai.timefold.solver.core.api.score.stream.Constraint[] defineConstraints(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Specified by:

defineConstraints in interface ai.timefold.solver.core.api.score.stream.ConstraintProvider

maximumCapacity

protected ai.timefold.solver.core.api.score.stream.Constraint maximumCapacity(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Maximum capacity: The maximum capacity for each resource for each machine must not be exceeded.

serviceConflict

protected ai.timefold.solver.core.api.score.stream.Constraint serviceConflict(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

serviceLocationSpread

protected ai.timefold.solver.core.api.score.stream.Constraint serviceLocationSpread(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Spread: Processes of the same service must be serviceLocationSpread out across locations.

serviceDependency

protected ai.timefold.solver.core.api.score.stream.Constraint serviceDependency(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Dependency: The processes of a service depending on another service must run in the neighborhood of a process of the other service.

transientUsage

protected ai.timefold.solver.core.api.score.stream.Constraint transientUsage(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Transient usage: Some resources are transient and count towards the maximum capacity of both the original machine as the newly assigned machine.

loadCost

protected ai.timefold.solver.core.api.score.stream.Constraint loadCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Load: The safety capacity for each resource for each machine should not be exceeded.

balanceCost

protected ai.timefold.solver.core.api.score.stream.Constraint balanceCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

availability(r) = capacity(m, r) - usage(m, r) balanceCost = sum(max(0, multiplier * availability(m, r1) - availability(m, r2)))

processMoveCost

protected ai.timefold.solver.core.api.score.stream.Constraint processMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Process move cost: A process has a move cost.

serviceMoveCost

protected ai.timefold.solver.core.api.score.stream.Constraint serviceMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Service move cost: A service has a move cost.

machineMoveCost

protected ai.timefold.solver.core.api.score.stream.Constraint machineMoveCost(ai.timefold.solver.core.api.score.stream.ConstraintFactory factory)

Machine move cost: Moving a process from machine A to machine B has another A-B specific move cost.