public class LexOrder extends Constraint
| Modifier and Type | Field and Description |
|---|---|
boolean |
lexLT
Is Lex enforcing "<" relationship?
|
IntVar[] |
x
Two vectors that have to be lexicographically ordered.
|
IntVar[] |
y |
atomicExecution, consistencyPruningEvents, earlyTerminationOK, id, increaseWeight, numberArgs, numberId, tracequeueIndex| Constructor and Description |
|---|
LexOrder(IntVar[] x,
IntVar[] y)
It creates a lexicographical order for vectors x and y,
vectors x and does not need to be of the same size.
|
LexOrder(IntVar[] x,
IntVar[] y,
boolean lt) |
| 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.
|
protected void |
establishGACInit() |
int |
getConsistencyPruningEvent(Var var)
It retrieves the pruning event which causes reevaluation of the
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 |
queueVariable(int level,
Var var)
This is a function called to indicate which variable in a scope of
constraint has changed.
|
void |
removeConstraint()
It removes the constraint by removing this constraint from all variables.
|
void |
removeLevelLate(int level)
This function is called in case of the backtrack.
|
boolean |
satisfied()
It checks if the constraint is satisfied.
|
String |
toString()
It produces a string representation of a constraint state.
|
void |
updateAlpha() |
void |
updateBeta(int i) |
cleanAfterFailure, decompose, getGuideConstraint, getGuideValue, getGuideVariable, id, impose, imposeDecomposition, numberArgs, removeLevel, requiresMonotonicity, setConsistencyPruningEvent, supplyGuideFeedbackauxiliaryVariables, derivative, imposeDecompositionpublic IntVar[] x
public IntVar[] y
public final boolean lexLT
public LexOrder(IntVar[] x, IntVar[] y)
x - vector of vectors which assignment is constrained by LexOrder constraint.public ArrayList<Var> arguments()
Constraintarguments in class Constraintpublic void impose(Store store)
Constraintimpose in class Constraintstore - the constraint store to which the constraint is imposed to.public int getConsistencyPruningEvent(Var var)
ConstraintgetConsistencyPruningEvent in class Constraintvar - variable for which pruning event is retrievedpublic void consistency(Store store)
Constraintconsistency in class Constraintstore - constraint store within which the constraint consistency is being checked.public boolean satisfied()
Constraintsatisfied in class Constraintpublic void removeConstraint()
ConstraintremoveConstraint in class Constraintpublic void increaseWeight()
ConstraintincreaseWeight in class Constraintpublic void queueVariable(int level,
Var var)
ConstraintqueueVariable in class Constraintlevel - the level of the store at which the change has occurred.var - variable which has changed.public void removeLevelLate(int level)
ConstraintremoveLevelLate in class Constraintlevel - the level which is being removed.public String toString()
ConstrainttoString in class Constraintprotected void establishGACInit()
public void updateAlpha()
public void updateBeta(int i)
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