Class CardA

    • Field Detail

      • idNumber

        static java.util.concurrent.atomic.AtomicInteger idNumber
      • a

        public SetVar a
        It specifies a set variable x which is being restricted.
      • cardinality

        public IntDomain cardinality
        It specifies variable c specifying the possible cardinality of variable x.
    • Constructor Detail

      • CardA

        public CardA​(SetVar a,
                     int c)
        It constructs a cardinality constraint to restrict the number of elements in the set assigned to a set variable a.
        Parameters:
        a - variable that is restricted to have the cardinality c.
        c - the value specifying cardinality of variable a.
      • CardA

        public CardA​(SetVar a,
                     IntDomain c)
        It constructs a cardinality constraint to restrict the number of elements in the set assigned to set variable a.
        Parameters:
        a - variable that is restricted to have the cardinality c.
        c - domain for the cardinality variable.
      • CardA

        public CardA​(SetVar a,
                     int min,
                     int max)
        It constructs a cardinality constraint to restrict the number of elements in the set assigned to set variable a.
        Parameters:
        a - variable that is restricted to have the cardinality [min, max].
        min - the minimum value possible for the cardinality of a.
        max - the maximum value possible for the cardinality of a.
      • CardA

        private CardA​(SetVar a)
    • Method Detail

      • 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.
      • 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.
      • 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