Class Channel

    • Field Detail

      • idNumber

        static final java.util.concurrent.atomic.AtomicInteger idNumber
      • x

        public final IntVar x
        Variables that is checked for a value.
      • n

        final int n
        length of vector bs
      • item

        final Channel.Item[] item
        It specifies variables b and related values for variable x.
      • position

        private TimeStamp<java.lang.Integer> position
      • valueMap

        java.util.Map<java.lang.Integer,​IntVar> valueMap
    • Constructor Detail

      • Channel

        public Channel​(IntVar x,
                       IntVar[] bs,
                       int[] value)
        It creates Channel constraint.
        Parameters:
        x - variable to be checked.
        bs - array representing the status of equality x = i.
        value - array of values that are checked against x.
      • Channel

        public Channel​(IntVar x,
                       IntVar[] bs,
                       IntDomain value)
        It creates Channel constraint.
        Parameters:
        x - variable to be checked.
        bs - array representing the status of equality x = i.
        value - set of values that are checked against x.
      • Channel

        public Channel​(IntVar x,
                       java.util.Map<java.lang.Integer,​IntVar> bs)
    • Method Detail

      • toArray

        static int[] toArray​(IntDomain d)
      • 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 class Constraint
        Parameters:
        store - constraint store within which the constraint consistency is being checked.
      • swap

        private void swap​(int i,
                          int j)
      • 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 interface SatisfiedPresent
        Returns:
        true if constraint is possible to verify that it is satisfied.
      • impose

        public void impose​(Store store)
        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.
      • toString

        public java.lang.String toString()
        Description copied from class: Constraint
        It produces a string representation of a constraint state.
        Overrides:
        toString in class Constraint