Package org.apache.datasketches

Enum GenericInequalitySearch.Inequality

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      EQ
      Equals: Although not an inequality, it is included for completeness.
      GE
      Greater-Than Or Equals: Find the lowest ranked adjacent pair {A, B} such that:
      arr[A] < v ≤ arr[B].
      Let low = lowest index of the lowest value in the range.
      Let high = highest index of the highest value in the range.
      GT
      Greater-Than: Find the lowest ranked adjacent pair {A, B} such that:
      arr[A] ≤ v < arr[B].
      Let low = lowest index of the lowest value in the range.
      Let high = highest index of the highest value in the range.
      LE
      Less-Than Or Equals: Find the highest ranked adjacent ordered pair {A, B} such that:
      arr[A] ≤ v < arr[B].
      Let low = lowest index of the lowest value in the range.
      Let high = highest index of the highest value in the range.
      LT
      Less-Than: Find the highest ranked adjacent ordered pair {A, B} such that:
      arr[A] < v ≤ arr[B] within the given range.
      Let low = lowest index of the lowest value in the range.
      Let high = highest index of the highest value in the range.

    • Enum Constant Detail

      • LT

        public static final GenericInequalitySearch.Inequality LT
        Less-Than: Find the highest ranked adjacent ordered pair {A, B} such that:
        arr[A] < v ≤ arr[B] within the given range.
        Let low = lowest index of the lowest value in the range.
        Let high = highest index of the highest value in the range.

        If v > arr[high], return arr[high].
        If v ≤ arr[low], return -1.
        Else return index of A.

      • LE

        public static final GenericInequalitySearch.Inequality LE
        Less-Than Or Equals: Find the highest ranked adjacent ordered pair {A, B} such that:
        arr[A] ≤ v < arr[B].
        Let low = lowest index of the lowest value in the range.
        Let high = highest index of the highest value in the range.

        If v ≥ arr[high], return arr[high].
        If v < arr[low], return -1.
        Else return index of A.

      • EQ

        public static final GenericInequalitySearch.Inequality EQ
        Equals: Although not an inequality, it is included for completeness. An index ≥ 0 is returned unless not found, then -1 is returned.

      • GE

        public static final GenericInequalitySearch.Inequality GE
        Greater-Than Or Equals: Find the lowest ranked adjacent pair {A, B} such that:
        arr[A] < v ≤ arr[B].
        Let low = lowest index of the lowest value in the range.
        Let high = highest index of the highest value in the range.

        If v ≤ arr[low], return arr[low].
        If v > arr[high], return -1.
        Else return index of B.

      • GT

        public static final GenericInequalitySearch.Inequality GT
        Greater-Than: Find the lowest ranked adjacent pair {A, B} such that:
        arr[A] ≤ v < arr[B].
        Let low = lowest index of the lowest value in the range.
        Let high = highest index of the highest value in the range.

        If v < arr[low], return arr[low].
        If v ≥ arr[high], return -1.
        Else return index of B.

    • Method Detail

      • values

        public static GenericInequalitySearch.Inequality[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (GenericInequalitySearch.Inequality c : GenericInequalitySearch.Inequality.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static GenericInequalitySearch.Inequality valueOf​(String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        IllegalArgumentException - if this enum type has no constant with the specified name
        NullPointerException - if the argument is null