org.jacop.constraints.cumulative

Class Cumulative

java.lang.Object

org.jacop.constraints.DecomposedConstraint<Constraint>

org.jacop.constraints.Constraint

org.jacop.constraints.cumulative.CumulativeBasic

org.jacop.constraints.cumulative.Cumulative

Direct Known Subclasses:

CumulativeUnary

public class Cumulative
extends CumulativeBasic

Field Summary

Fields

Modifier and Type	Field and Description
protected Comparator<org.jacop.constraints.cumulative.TaskView>	taskDecLctComparator
protected Comparator<org.jacop.constraints.cumulative.TaskView>	taskIncEstComparator

Fields inherited from class org.jacop.constraints.cumulative.CumulativeBasic

limit

Fields inherited from class org.jacop.constraints.Constraint

atomicExecution, consistencyPruningEvents, constraintScope, earlyTerminationOK, increaseWeight, numberId, scope, trace

Fields inherited from class org.jacop.constraints.DecomposedConstraint

queueIndex

Constructor Summary

Constructors

Constructor and Description
Cumulative(IntVar[] starts, IntVar[] durations, IntVar[] resources, IntVar limit) It creates a cumulative constraint.
Cumulative(List<? extends IntVar> starts, List<? extends IntVar> durations, List<? extends IntVar> resources, IntVar limit) It creates a cumulative constraint.

Method Summary

Modifier and Type	Method and Description
void	consistency(Store store) It is a (most probably incomplete) consistency function which removes the values from variables domains.
void	doQuadraticEdgeFind(boolean doQEF)
int	getDefaultConsistencyPruningEvent()
String	toString() It produces a string representation of a constraint state.

Methods inherited from class org.jacop.constraints.Constraint

afc, arguments, cleanAfterFailure, decompose, getConsistencyPruningEvent, getGuideConstraint, getGuideValue, getGuideVariable, grounded, grounded, id, impose, impose, imposeDecomposition, increaseWeight, intArrayToString, long2int, numberArgs, queueVariable, removeConstraint, requiresMonotonicity, setConsistencyPruningEvent, setConstraintScope, setScope, setScope, setScope, setScope, setScope, setWatchedVariableGrounded, supplyGuideFeedback, updateAFC, watchedVariableGrounded

Methods inherited from class org.jacop.constraints.DecomposedConstraint

auxiliaryVariables, checkInput, checkInput, checkInputForDuplication, checkInputForDuplicationSkipSingletons, checkInputForNullness, checkInputForNullness, checkInputForNullness, derivative, getDubletonsSkipSingletons, imposeDecomposition

Methods inherited from class java.lang.Object

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

Field Detail

taskIncEstComparator

protected Comparator<org.jacop.constraints.cumulative.TaskView> taskIncEstComparator

taskDecLctComparator

protected Comparator<org.jacop.constraints.cumulative.TaskView> taskDecLctComparator

Constructor Detail

Cumulative

public Cumulative(IntVar[] starts,
                  IntVar[] durations,
                  IntVar[] resources,
                  IntVar limit)

It creates a cumulative constraint.

Parameters:

starts - variables denoting starts of the tasks.

durations - variables denoting durations of the tasks.

resources - variables denoting resource usage of the tasks.

limit - the overall limit of resources which has to be used.

Cumulative

public Cumulative(List<? extends IntVar> starts,
                  List<? extends IntVar> durations,
                  List<? extends IntVar> resources,
                  IntVar limit)

It creates a cumulative constraint.

Parameters:

starts - variables denoting starts of the tasks.

durations - variables denoting durations of the tasks.

resources - variables denoting resource usage of the tasks.

limit - the overall limit of resources which has to be used.

Method Detail

doQuadraticEdgeFind

public void doQuadraticEdgeFind(boolean doQEF)

consistency

public void consistency(Store store)

Description copied from class: Constraint

It is a (most probably incomplete) consistency function which removes the values from variables domains. Only values which do not have any support in a solution space are removed.

Overrides:

consistency in class CumulativeBasic

Parameters:

store - constraint store within which the constraint consistency is being checked.

getDefaultConsistencyPruningEvent

public int getDefaultConsistencyPruningEvent()

Overrides:

getDefaultConsistencyPruningEvent in class CumulativeBasic

toString

public String toString()

Description copied from class: Constraint

It produces a string representation of a constraint state.

Overrides:

toString in class CumulativeBasic