public static <A extends Number & Comparable<?>> NumberExpression<A> round(Expression<A> num) {
        return Expressions.numberOperation(num.getType(), MathOps.ROUND, num);
    }
Round to nearest integer

@param num numeric expression
@return round(this)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/MathExpressions.java