Package org.jacop.floats.constraints
Class CosPeqR
- java.lang.Object
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- org.jacop.constraints.DecomposedConstraint<Constraint>
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- org.jacop.constraints.Constraint
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- org.jacop.floats.constraints.CosPeqR
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- All Implemented Interfaces:
SatisfiedPresent
,Stateful
- Direct Known Subclasses:
AcosPeqR
public class CosPeqR extends Constraint implements Stateful, SatisfiedPresent
Constraints cos(P) = RBounds consistency can be used; third parameter of constructor controls this.
- Version:
- 4.8
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Field Summary
Fields Modifier and Type Field Description (package private) boolean
firstConsistencyCheck
(package private) int
firstConsistencyLevel
(package private) static java.util.concurrent.atomic.AtomicInteger
idNumber
FloatVar
p
It contains variable p.FloatVar
q
It contains variable q.-
Fields inherited from class org.jacop.constraints.Constraint
atomicExecution, consistencyPruningEvents, constraintScope, earlyTerminationOK, increaseWeight, numberId, scope, trace
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Fields inherited from class org.jacop.constraints.DecomposedConstraint
queueIndex
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description (package private) void
boundConsistency(Store store)
void
consistency(Store store)
It is a (most probably incomplete) consistency function which removes the values from variables domains.FloatVar
derivative(Store store, FloatVar f, java.util.Set<FloatVar> vars, FloatVar x)
int
getDefaultConsistencyPruningEvent()
(package private) int
intervalNo(double d)
(package private) FloatInterval
normalize(FloatVar v)
void
removeLevel(int level)
This function is called in case of the backtrack, so a constraint can clear the queue of changed variables which is no longer valid.boolean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, numberArgs, queueVariable, removeConstraint, requiresMonotonicity, setConsistencyPruningEvent, setConstraintScope, setScope, setScope, setScope, setScope, setScope, setWatchedVariableGrounded, supplyGuideFeedback, updateAFC, watchedVariableGrounded
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Methods inherited from class org.jacop.constraints.DecomposedConstraint
auxiliaryVariables, checkInput, checkInput, checkInputForDuplication, checkInputForDuplicationSkipSingletons, checkInputForNullness, checkInputForNullness, checkInputForNullness, getDubletonsSkipSingletons, imposeDecomposition
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.jacop.api.Stateful
isStateful
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Method Detail
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removeLevel
public void removeLevel(int level)
Description copied from interface:Stateful
This function is called in case of the backtrack, so a constraint can clear the queue of changed variables which is no longer valid. This function is called *before* all timestamps, variables, mutablevariables have reverted to their previous value.- Specified by:
removeLevel
in interfaceStateful
- Parameters:
level
- the level which is being removed.
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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.
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boundConsistency
void boundConsistency(Store store)
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normalize
FloatInterval normalize(FloatVar v)
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intervalNo
int intervalNo(double d)
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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
public java.lang.String toString()
Description copied from class:Constraint
It produces a string representation of a constraint state.- Overrides:
toString
in classConstraint
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derivative
public FloatVar derivative(Store store, FloatVar f, java.util.Set<FloatVar> vars, FloatVar x)
- Overrides:
derivative
in classDecomposedConstraint<Constraint>
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