public NumberExpression<Integer> indexOf(String str, int i) {
        return indexOf(ConstantImpl.create(str), i);
    }
Create a {@code this.indexOf(str, i)} expression

<p>Get the index of the given substring in this String, starting from the given index</p>

@param str string
@param i zero based index
@return this.indexOf(str, i)
@see java.lang.String#indexOf(String, int)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/StringExpression.java