Adding Boolean function
Use this procedure to add boolean function in a mapping. Also known as a loop controlling function, UBJ function controls the loop iterations. You can drop this function on a loop. There can only be one boolean function within a loop and it must be the first in the loop's sequence, controlling the loop. The same is valid for If functions.
Note: The methods for UBJ and UVJ functions are almost the same, except
that the UBJ function outputs a Boolean value, as well as output
parameter values. You define the criteria by writing Java code in the same way.