public static <D extends Comparable> DateExpression<D> addDays(DateExpression<D> date, int days) {
        return Expressions.dateOperation(date.getType(), Ops.DateTimeOps.ADD_DAYS, date, ConstantImpl.create(days));
    }
Add the given amount of days to the date

@param date date
@param days days to add
@return converted date
querydsl-sql/src/main/java/com/querydsl/sql/SQLExpressions.java