Package org.jacop.constraints
Class Values
- java.lang.Object
-
- org.jacop.constraints.DecomposedConstraint<Constraint>
-
- org.jacop.constraints.Constraint
-
- org.jacop.constraints.Values
-
- All Implemented Interfaces:
SatisfiedPresent
public class Values extends Constraint implements SatisfiedPresent
Constraint Values counts number of different values on a list of Variables.- Version:
- 4.7
-
-
Field Summary
Fields Modifier and Type Field Description private IntVar
count
It specifies the idNumber of different values among variables on a given list.private static boolean
debug
(package private) static java.util.concurrent.atomic.AtomicInteger
idNumber
private IntVar[]
list
It specifies a list of variables which are counted.(package private) java.util.Comparator<IntVar>
minFDV
-
Fields inherited from class org.jacop.constraints.Constraint
afcWeight, atomicExecution, consistencyPruningEvents, constraintScope, earlyTerminationOK, increaseWeight, numberId, scope, trace, watchedVariableGrounded
-
Fields inherited from class org.jacop.constraints.DecomposedConstraint
queueIndex
-
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
consistency(Store store)
It is a (most probably incomplete) consistency function which removes the values from variables domains.int
getDefaultConsistencyPruningEvent()
boolean
satisfied()
It checks if the constraint is satisfied.java.lang.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, toInt, toInt, updateAFC, watchedVariableGrounded
-
Methods inherited from class org.jacop.constraints.DecomposedConstraint
auxiliaryVariables, checkInput, checkInput, checkInputForDuplication, checkInputForDuplicationSkipSingletons, checkInputForNullness, checkInputForNullness, checkInputForNullness, derivative, getDubletonsSkipSingletons, imposeDecomposition
-
-
-
-
Field Detail
-
idNumber
static final java.util.concurrent.atomic.AtomicInteger idNumber
-
list
private final IntVar[] list
It specifies a list of variables which are counted.
-
count
private final IntVar count
It specifies the idNumber of different values among variables on a given list.
-
minFDV
java.util.Comparator<IntVar> minFDV
-
debug
private static final boolean debug
- See Also:
- Constant Field Values
-
-
Method Detail
-
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.- Specified by:
consistency
in classConstraint
- Parameters:
store
- constraint store within which the constraint consistency is being checked.
-
toString
public java.lang.String toString()
Description copied from class:Constraint
It produces a string representation of a constraint state.- Overrides:
toString
in classConstraint
-
getDefaultConsistencyPruningEvent
public int getDefaultConsistencyPruningEvent()
- Specified by:
getDefaultConsistencyPruningEvent
in classConstraint
-
satisfied
public boolean satisfied()
Description copied from interface:SatisfiedPresent
It checks if the constraint is satisfied. It can return false even if constraint is satisfied but not all variables in its scope are grounded. It needs to return true if all variables in its scope are grounded and constraint is satisfied.Implementations of this interface for constraints that are not PrimitiveConstraint may require constraint imposition and consistency check as a requirement to work correctly.
- Specified by:
satisfied
in interfaceSatisfiedPresent
- Returns:
- true if constraint is possible to verify that it is satisfied.
-
-