Package org.jacop.set.constraints
Class Match
java.lang.Object
org.jacop.constraints.DecomposedConstraint<Constraint>
org.jacop.constraints.Constraint
org.jacop.set.constraints.Match
- All Implemented Interfaces:
SatisfiedPresent
This constraint matches the elements of the given set variable
onto a list of integer variables.
- Version:
- 4.8
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Field Summary
FieldsModifier and TypeFieldDescriptionIt specifies a set variable whose values are being matched against integer variables from the list.(package private) static AtomicInteger
IntVar[]
It specifies the list of integer variables which value is being matched against elements from a set variable a.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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
consistency
(Store store) It is a (most probably incomplete) consistency function which removes the values from variables domains.int
It retrieves the pruning event which causes reevaluation of the constraint.int
boolean
It checks if the constraint is satisfied.toString()
It produces a string representation of a constraint state.Methods inherited from class org.jacop.constraints.Constraint
afc, arguments, cleanAfterFailure, decompose, getGuideConstraint, getGuideValue, getGuideVariable, grounded, grounded, id, impose, impose, imposeDecomposition, increaseWeight, intArrayToString, 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
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Field Details
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idNumber
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a
It specifies a set variable whose values are being matched against integer variables from the list. -
list
It specifies the list of integer variables which value is being matched against elements from a set variable a.
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Constructor Details
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Match
It constructs a match constraint to connect the value of set variable a to the values of integer variables provided in the list.- Parameters:
a
- set variable that is restricted to be equal to a set created from values specified by integer variables form the list.list
- of integer variables that is restricted to have the same elements as set variable a.
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Method Details
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consistency
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.
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getConsistencyPruningEvent
Description copied from class:Constraint
It retrieves the pruning event which causes reevaluation of the constraint.- Overrides:
getConsistencyPruningEvent
in classConstraint
- Parameters:
var
- variable for which pruning event is retrieved- Returns:
- it returns the int code of the pruning event (GROUND, BOUND, ANY, NONE)
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getDefaultConsistencyPruningEvent
public int getDefaultConsistencyPruningEvent()- Specified by:
getDefaultConsistencyPruningEvent
in classConstraint
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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.
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toString
Description copied from class:Constraint
It produces a string representation of a constraint state.- Overrides:
toString
in classConstraint
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