Package dev.frostlake.functions.scalar.math

Class Uniform

java.lang.Object
dev.frostlake.functions.BuiltInFunction
dev.frostlake.functions.NumericArgumentFunction
dev.frostlake.functions.scalar.math.Uniform
public class Uniform extends NumericArgumentFunction
UNIFORM(min, max [, gen]) — a uniformly random value in the range. With integer bounds the result is an integer INCLUSIVE of both bounds (Snowflake); with a floating-point bound it is a double in [min, max). The optional generator argument (typically RANDOM()) supplies the entropy — a per-row RANDOM() varies the result per row, a constant RANDOM(seed) repeats it; without it an independent value is used per call.

  • Constructor Details

    • Uniform

      public Uniform()

  • Method Details

    • evaluate

      public Object evaluate(List<Object> args)
      Description copied from class: BuiltInFunction
      Computes the function's result over its already-evaluated argument values. A SQL NULL argument arrives as Java null, and returning null makes the SQL result NULL.
      Specified by:
      evaluate in class BuiltInFunction
      Parameters:
      args - the argument values, in call order
      Returns:
      the function's value for these arguments, or null for SQL NULL

    • getMinArgCount

      public int getMinArgCount()
      Description copied from class: BuiltInFunction
      The fewest arguments a call to this function may pass; fewer is an argument-count error.
      Specified by:
      getMinArgCount in class BuiltInFunction
      Returns:
      the minimum accepted argument count

    • getMaxArgCount

      public int getMaxArgCount()
      Description copied from class: BuiltInFunction
      The most arguments a call to this function may pass; Integer.MAX_VALUE marks a variadic function (see BuiltInFunction.isVariadic()).
      Specified by:
      getMaxArgCount in class BuiltInFunction
      Returns:
      the maximum accepted argument count