locate(x, pattern, from) - JPA CriteriaBuilder's method

Create expression to locate the position of one string within another, returning position of first character if found. The first position in a string is denoted by 1. If the string to be located is not found, 0 is returned.
x - expression for string to be searched
pattern - expression for string to be located
from - expression for position at which to start search
expression corresponding to position
JPA 2.0