org.jacop.constraints

Class Linear

java.lang.Object

org.jacop.constraints.DecomposedConstraint<Constraint>

org.jacop.constraints.Constraint

org.jacop.constraints.Linear

All Implemented Interfaces:

RemoveLevelLate, SatisfiedPresent, UsesQueueVariable

Deprecated.

As of release 4.3.1 replaced by LinearInt constraint.

@Deprecated
public class Linear
extends Constraint
implements UsesQueueVariable, SatisfiedPresent, RemoveLevelLate

Field Summary

Fields

Modifier and Type	Field and Description
IntVar[]	list Deprecated. It specifies a list of variables being summed.
byte	relationType Deprecated. It specifies what relations is used by this constraint
int	sum Deprecated. It specifies variable for the overall sum.
int[]	weights Deprecated. It specifies a list of weights associated with the variables being summed.

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

Constructor Summary

Constructors

Constructor and Description
Linear(Store store, IntVar[] list, int[] weights, String rel, int sum) Deprecated. It constructs the constraint Linear.
Linear(Store store, List<? extends IntVar> variables, List<Integer> weights, String rel, int sum) Deprecated. It constructs the constraint Linear.

Method Summary

Modifier and Type	Method and Description
void	consistency(Store store) Deprecated. It is a (most probably incomplete) consistency function which removes the values from variables domains.
int	getDefaultConsistencyPruningEvent() Deprecated.
void	impose(Store store) Deprecated. It imposes the constraint in a given store.
void	queueVariable(int level, Var var) Deprecated. This is a function called to indicate which variable in a scope of constraint has changed.
String	rel2String() Deprecated.
byte	relation(String r) Deprecated.
void	removeLevelLate(int level) Deprecated. This function is called in case of the backtrack.
boolean	satisfied() Deprecated. It checks if the constraint is satisfied.
String	toString() Deprecated. 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, imposeDecomposition, increaseWeight, intArrayToString, long2int, numberArgs, 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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

relationType

public byte relationType

Deprecated.

It specifies what relations is used by this constraint

list

public IntVar[] list

Deprecated.

It specifies a list of variables being summed.

weights

public int[] weights

Deprecated.

It specifies a list of weights associated with the variables being summed.

sum

public int sum

Deprecated.

It specifies variable for the overall sum.

Constructor Detail

Linear

public Linear(Store store,
              IntVar[] list,
              int[] weights,
              String rel,
              int sum)

Deprecated.

It constructs the constraint Linear.

Parameters:

store - current store

list - variables which are being multiplied by weights.

weights - weight for each variable.

rel - the relation, one of "==", "<", ">", "<=", ">=", "!="

sum - variable containing the sum of weighted variables.

Linear

public Linear(Store store,
              List<? extends IntVar> variables,
              List<Integer> weights,
              String rel,
              int sum)

Deprecated.

It constructs the constraint Linear.

Parameters:

store - current store

variables - variables which are being multiplied by weights.

weights - weight for each variable.

rel - the relation, one of "==", "<", ">", "<=", ">=", "!="

sum - variable containing the sum of weighted variables.

Method Detail

removeLevelLate

public void removeLevelLate(int level)

Deprecated.

Description copied from interface: RemoveLevelLate

This function is called in case of the backtrack. It is called after all timestamps, variables, mutablevariables have reverted to their values *after* removing the level.

Specified by:

removeLevelLate in interface RemoveLevelLate

Parameters:

level - the level which is being removed.

consistency

public void consistency(Store store)

Deprecated.

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 class Constraint

Parameters:

store - constraint store within which the constraint consistency is being checked.

getDefaultConsistencyPruningEvent

public int getDefaultConsistencyPruningEvent()

Deprecated.

Specified by:

getDefaultConsistencyPruningEvent in class Constraint

impose

public void impose(Store store)

Deprecated.

Description copied from class: Constraint

It imposes the constraint in a given store.

Overrides:

impose in class Constraint

Parameters:

store - the constraint store to which the constraint is imposed to.

queueVariable

public void queueVariable(int level,
                          Var var)

Deprecated.

Description copied from class: Constraint

This is a function called to indicate which variable in a scope of constraint has changed. It also indicates a store level at which the change has occurred.

Overrides:

queueVariable in class Constraint

Parameters:

level - the level of the store at which the change has occurred.

var - variable which has changed.

satisfied

public boolean satisfied()

Deprecated.

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 interface SatisfiedPresent

Returns:

true if constraint is possible to verify that it is satisfied.

relation

public byte relation(String r)

Deprecated.

rel2String

public String rel2String()

Deprecated.

toString

public String toString()

Deprecated.

Description copied from class: Constraint

It produces a string representation of a constraint state.

Overrides:

toString in class Constraint