public class ElementSet extends Constraint
Modifier and Type | Field and Description |
---|---|
IntVar |
index
It specifies what element from the list of sets is equal to set variable value.
|
int |
indexOffset
It allows to offset the indexing.
|
IntDomain[] |
list
It specifies a list of sets from which one element will be made equal to set variable
value.
|
SetVar |
value
It specifies the set variable which is equal to one of the sets from the list as
indicated by int variable index.
|
static String[] |
xmlAttributes
It specifies the arguments required to be saved by an XML format as well as
the constructor being called to recreate an object from an XML format.
|
atomicExecution, consistencyPruningEvents, earlyTerminationOK, id, increaseWeight, numberArgs, numberId, trace
queueIndex
Constructor and Description |
---|
ElementSet(IntVar index,
IntDomain[] list,
SetVar value)
It constructs an elementSet constraint to restrict the domains of the variables index and value.
|
ElementSet(IntVar index,
IntDomain[] list,
SetVar value,
int indexOffset)
It constructs a constraint to restrict the domains of the variables index and value.
|
Modifier and Type | Method and Description |
---|---|
ArrayList<Var> |
arguments()
It returns the variables in a scope of the constraint.
|
void |
consistency(Store store)
It is a (most probably incomplete) consistency function which removes the
values from variables domains.
|
int |
getConsistencyPruningEvent(Var var)
It retrieves the pruning event which causes reevaluation of the
constraint.
|
String |
id()
It gives the id string of a constraint.
|
void |
impose(Store store)
It imposes the constraint in a given store.
|
void |
increaseWeight()
It increases the weight of the variables in the constraint scope.
|
void |
removeConstraint()
It removes the constraint by removing this constraint from all variables.
|
boolean |
satisfied()
It checks if the constraint is satisfied.
|
String |
toString()
It produces a string representation of a constraint state.
|
cleanAfterFailure, decompose, getGuideConstraint, getGuideValue, getGuideVariable, impose, imposeDecomposition, numberArgs, queueVariable, removeLevel, removeLevelLate, requiresMonotonicity, setConsistencyPruningEvent, supplyGuideFeedback
auxiliaryVariables, derivative, imposeDecomposition
public IntVar index
public IntDomain[] list
public SetVar value
public int indexOffset
public static String[] xmlAttributes
public ElementSet(IntVar index, IntDomain[] list, SetVar value, int indexOffset)
value
- variable that is restricted to have the same elements as list[index].list
- array of sets that contains possible values for variable value.index
- variable that is restricted to be the index of sets for which list[index] == value.indexOffset
- the shift applied to the index variable.public ElementSet(IntVar index, IntDomain[] list, SetVar value)
value
- variable that is restricted to have the same elements as list[index].list
- array of sets that contains possible values for variable value.index
- variable that is restricted to be the index of sets for which list[index] == value.public ArrayList<Var> arguments()
Constraint
arguments
in class Constraint
public void consistency(Store store)
Constraint
consistency
in class Constraint
store
- constraint store within which the constraint consistency is being checked.public int getConsistencyPruningEvent(Var var)
Constraint
getConsistencyPruningEvent
in class Constraint
var
- variable for which pruning event is retrievedpublic String id()
Constraint
id
in class Constraint
public void impose(Store store)
Constraint
impose
in class Constraint
store
- the constraint store to which the constraint is imposed to.public void removeConstraint()
Constraint
removeConstraint
in class Constraint
public boolean satisfied()
Constraint
satisfied
in class Constraint
public String toString()
Constraint
toString
in class Constraint
public void increaseWeight()
Constraint
increaseWeight
in class Constraint
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