Package dev.frostlake.functions.scalar.math

Class Getbit

java.lang.Object
dev.frostlake.functions.BuiltInFunction
dev.frostlake.functions.NumericArgumentFunction
dev.frostlake.functions.scalar.math.Getbit
public class Getbit extends NumericArgumentFunction
GETBIT(integer_expr, bit_position) — the value (0 or 1) of the bit at the 0-based bit_position, counting from the least significant bit. GETBIT(11, 0) is 1 and GETBIT(11, 2) is 0 (11 = binary 1011). A position beyond the value's set bits yields 0. Either NULL argument yields NULL; a negative position is an error. Uses BigInteger.testBit(int) so positions well past 64 bits are safe.

  • Constructor Details

    • Getbit

      public Getbit()

  • 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