samples.tutorials.to_sort.tsp
Class SubTourConstraint

java.lang.Object
  extended by choco.kernel.solver.propagation.Propagator
      extended by choco.kernel.solver.constraints.AbstractSConstraint<IntDomainVar>
          extended by choco.kernel.solver.constraints.integer.AbstractIntSConstraint
              extended by choco.kernel.solver.constraints.integer.AbstractLargeIntSConstraint
                  extended by samples.tutorials.to_sort.tsp.SubTourConstraint
All Implemented Interfaces:
IExtensionnable, IPretty, SConstraint<IntDomainVar>, IntPropagator, Cloneable, EventListener

public class SubTourConstraint
extends AbstractLargeIntSConstraint


Nested Class Summary
static class SubTourConstraint.SubTourConstraintManager
           
 
Field Summary
protected  boolean debug
           
protected  IStateInt[] end
           
protected  boolean filter
           
protected  IStateBitSet[] inPath
           
protected  int n
           
protected  IntDomainVar[] s
           
 
Fields inherited from class choco.kernel.solver.constraints.AbstractSConstraint
cIndices, constraintType, extensions, vars
 
Fields inherited from class choco.kernel.solver.propagation.Propagator
active, constAwakeEvent, priority, propagationEngine
 
Fields inherited from interface choco.kernel.solver.constraints.SConstraint
LOGGER
 
Constructor Summary
SubTourConstraint(IntDomainVar[] s, IEnvironment environment)
           
 
Method Summary
 void awake()
          Propagation: Propagating the constraint for the very first time until local consistency is reached.
 void awakeOnBounds(int u)
           
 void awakeOnInf(int u)
          Default propagation on improved lower bound: propagation on domain revision.
 void awakeOnInst(int u)
          Default propagation on instantiation: full constraint re-propagation.
 void awakeOnRem(int u, int v)
          Default propagation on one value removal: propagation on domain revision.
 void awakeOnRemovals(int u, DisposableIntIterator deltaDomain)
          The default implementation of propagation when a variable has been modified consists in iterating all values that have been removed (the delta domain) and propagate them one after another, incrementally.
 void awakeOnSup(int u)
          Default propagation on improved upper bound: propagation on domain revision.
 boolean isSatisfied()
          Default implementation of the isSatisfied by delegating to the isSatisfied(int[] tuple)
 void propagate()
          Propagation: Propagating the constraint until local consistency is reached.
 
Methods inherited from class choco.kernel.solver.constraints.integer.AbstractIntSConstraint
getConstraintType, isConsistent, isSatisfied
 
Methods inherited from class choco.kernel.solver.constraints.AbstractSConstraint
addExtension, addListener, clone, getAbstractSConstraintExtensionNumber, getConstraintIdx, getExtension, getFineDegree, getNbVarNotInst, getNbVars, getVar, getVarQuick, isCompletelyInstantiated, isEntailed, opposite, pretty, setConstraintIndex, setExtension, setVar, toString
 
Methods inherited from class choco.kernel.solver.propagation.Propagator
activate, constAwake, fail, getEvent, getFilteredEventMask, getPriority, isActive, setActive, setActiveSilently, setEntailed, setPassive, setPropagationEngine
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

debug

protected boolean debug

filter

protected boolean filter

n

protected int n

s

protected IntDomainVar[] s

inPath

protected IStateBitSet[] inPath

end

protected IStateInt[] end
Constructor Detail

SubTourConstraint

public SubTourConstraint(IntDomainVar[] s,
                         IEnvironment environment)
Method Detail

awake

public void awake()
           throws ContradictionException
Description copied from class: Propagator
Propagation: Propagating the constraint for the very first time until local consistency is reached.

Overrides:
awake in class Propagator
Throws:
ContradictionException - contradiction exception

propagate

public void propagate()
               throws ContradictionException
Description copied from class: Propagator
Propagation: Propagating the constraint until local consistency is reached.

Specified by:
propagate in class Propagator
Throws:
ContradictionException - contradiction exception

awakeOnInst

public void awakeOnInst(int u)
                 throws ContradictionException
Description copied from class: AbstractIntSConstraint
Default propagation on instantiation: full constraint re-propagation.

Specified by:
awakeOnInst in interface IntPropagator
Overrides:
awakeOnInst in class AbstractIntSConstraint
Throws:
ContradictionException

awakeOnInf

public void awakeOnInf(int u)
                throws ContradictionException
Description copied from class: AbstractIntSConstraint
Default propagation on improved lower bound: propagation on domain revision.

Specified by:
awakeOnInf in interface IntPropagator
Overrides:
awakeOnInf in class AbstractIntSConstraint
Throws:
ContradictionException

awakeOnSup

public void awakeOnSup(int u)
                throws ContradictionException
Description copied from class: AbstractIntSConstraint
Default propagation on improved upper bound: propagation on domain revision.

Specified by:
awakeOnSup in interface IntPropagator
Overrides:
awakeOnSup in class AbstractIntSConstraint
Throws:
ContradictionException

awakeOnBounds

public void awakeOnBounds(int u)
                   throws ContradictionException
Specified by:
awakeOnBounds in interface IntPropagator
Overrides:
awakeOnBounds in class AbstractIntSConstraint
Throws:
ContradictionException

awakeOnRem

public void awakeOnRem(int u,
                       int v)
                throws ContradictionException
Description copied from class: AbstractIntSConstraint
Default propagation on one value removal: propagation on domain revision.

Specified by:
awakeOnRem in interface IntPropagator
Overrides:
awakeOnRem in class AbstractIntSConstraint
Throws:
ContradictionException

awakeOnRemovals

public void awakeOnRemovals(int u,
                            DisposableIntIterator deltaDomain)
                     throws ContradictionException
Description copied from class: AbstractIntSConstraint
The default implementation of propagation when a variable has been modified consists in iterating all values that have been removed (the delta domain) and propagate them one after another, incrementally.

Specified by:
awakeOnRemovals in interface IntPropagator
Overrides:
awakeOnRemovals in class AbstractIntSConstraint
Throws:
ContradictionException

isSatisfied

public boolean isSatisfied()
Description copied from class: AbstractIntSConstraint
Default implementation of the isSatisfied by delegating to the isSatisfied(int[] tuple)

Specified by:
isSatisfied in interface SConstraint<IntDomainVar>
Overrides:
isSatisfied in class AbstractIntSConstraint
Returns:
true if the constraint is satisfied


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