mondrian.rolap

Interface CellKey

    • Method Summary

      Methods 
      Modifier and Type Method and Description
      CellKey copy()
      Returns a mutable copy of this CellKey.
      int getAxis(int axis)
      Returns the axisth axis value.
      int getOffset(int[] axisMultipliers)
      Returns the offset of the cell in a raster-scan order.
      int[] getOrdinals()
      Returns the axis keys as an array.
      void setAxis(int axis, int value)
      Sets a given axis.
      void setOrdinals(int[] pos)
      This method make a copy of the int array parameter.
      int size()
      Returns the number of axes.
    • Method Detail

      • size

        int size()
        Returns the number of axes.
        Returns:
        number of axes
      • getOrdinals

        int[] getOrdinals()
        Returns the axis keys as an array.

        Note: caller should treat the array as immutable. If the contents of the array are modified, behavior is unspecified.

        Returns:
        Array of axis keys
      • setOrdinals

        void setOrdinals(int[] pos)
        This method make a copy of the int array parameter. Throws a RuntimeException if the int array size is not the size of the CellKey.
        Parameters:
        pos - Array of axis keys
      • getAxis

        int getAxis(int axis)
        Returns the axisth axis value.
        Throws:
        ArrayIndexOutOfBoundsException - if axis is out of range
        Parameters:
        axis - Axis ordinal
        Returns:
        Value of the axisth axis
      • setAxis

        void setAxis(int axis,
                   int value)
        Sets a given axis.
        Throws:
        RuntimeException - if axis parameter is larger than size()
        Parameters:
        axis - Axis ordinal
        value - Value
      • copy

        CellKey copy()
        Returns a mutable copy of this CellKey.
        Returns:
        Mutable copy
      • getOffset

        int getOffset(int[] axisMultipliers)
        Returns the offset of the cell in a raster-scan order.

        For example, if the axes have lengths {2, 5, 10} then cell (2, 3, 4) has offset

        (2 * mulitiplers[0]) + (3 * multipliers[1]) + (4 * multipliers[2])
        = (2 * 50) + (3 * 10) + (4 * 1)
        = 134

        The multipliers are the product of the lengths of all later axes, in this case (50, 10, 1).

        Parameters:
        axisMultipliers - For each axis, the product of the lengths of later axes
        Returns:
        The raster-scan ordinal of this cell