public class Binpacking extends Constraint
Modifier and Type | Field and Description |
---|---|
org.jacop.constraints.binpacking.BinItem[] |
item
It keeps together a list of variables which define bin for item i and
their weigts.
|
IntVar[] |
load
It specifies a list of variables which define bin load.
|
static String[] |
xmlAttributes
It specifies the arguments required to be saved by an XML format as well as
the constructor being called to recreate an object from an XML format.
|
atomicExecution, consistencyPruningEvents, earlyTerminationOK, id, increaseWeight, numberArgs, numberId, trace
queueIndex
Constructor and Description |
---|
Binpacking(ArrayList<? extends IntVar> bin,
ArrayList<? extends IntVar> load,
int[] w)
It constructs the binpacking constraint for the supplied variable.
|
Binpacking(IntVar[] bin,
IntVar[] load,
int[] w)
It constructs the binpacking constraint for the supplied variable.
|
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.
|
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 V)
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 |
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clear the queue of changed variables which is no longer valid.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.
|
String |
toString()
It produces a string representation of a constraint state.
|
cleanAfterFailure, decompose, getGuideConstraint, getGuideValue, getGuideVariable, id, impose, imposeDecomposition, numberArgs, removeLevelLate, requiresMonotonicity, setConsistencyPruningEvent, supplyGuideFeedback
auxiliaryVariables, derivative, imposeDecomposition
public org.jacop.constraints.binpacking.BinItem[] item
public IntVar[] load
public static String[] xmlAttributes
public Binpacking(IntVar[] bin, IntVar[] load, int[] w)
bin
- which are constrained to define bin for item i.load
- which are constrained to define load for bin i.w
- which define size ofitem i.public Binpacking(ArrayList<? extends IntVar> bin, ArrayList<? extends IntVar> load, int[] w)
bin
- which are constrained to define bin for item i.load
- which are constrained to define load for bin i.w
- which define size ofitem i.public ArrayList<Var> arguments()
Constraint
arguments
in class Constraint
public void consistency(Store store)
Constraint
consistency
in class Constraint
store
- constraint store within which the constraint consistency is being checked.public int getConsistencyPruningEvent(Var var)
Constraint
getConsistencyPruningEvent
in class Constraint
var
- variable for which pruning event is retrievedpublic boolean satisfied()
Constraint
satisfied
in class Constraint
public void impose(Store store)
Constraint
impose
in class Constraint
store
- the constraint store to which the constraint is imposed to.public void queueVariable(int level, Var V)
Constraint
queueVariable
in class Constraint
level
- the level of the store at which the change has occurred.V
- variable which has changed.public void removeLevel(int level)
Constraint
removeLevel
in class Constraint
level
- the level which is being removed.public void removeConstraint()
Constraint
removeConstraint
in class Constraint
public String toString()
Constraint
toString
in class Constraint
public void increaseWeight()
Constraint
increaseWeight
in class Constraint
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