Package dev.frostlake.functions.scalar.semistructured

Class ArraySort

java.lang.Object
dev.frostlake.functions.BuiltInFunction
dev.frostlake.functions.scalar.semistructured.ArraySort
public class ArraySort extends BuiltInFunction
ARRAY_SORT(array [, sort_ascending [, nulls_first]]) — sorts elements. sort_ascending defaults to TRUE. nulls_first defaults to FALSE for ascending order and TRUE for descending order.

nulls_first governs the VARIANT undefined elements ONLY. A JSON null is a VALUE and is sorted by the comparator, which ranks it above every other variant type — so it lands last ascending and first descending whatever the flag says. Two numeric elements are compared by value; otherwise elements are compared lexically.

  • Constructor Details

    • ArraySort

      public ArraySort()

  • 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