int controlStyle = SWT.CALENDAR;
final DatePickerProperty datePickerPropertyAnnotation = getField().getAnnotation(DatePickerProperty.class);
if (datePickerPropertyAnnotation != null) {
sdf = new SimpleDateFormat(datePickerPropertyAnnotation.dateTimePattern());
controlStyle = datePickerPropertyAnnotation.swtStyle();
} else {
sdf = new SimpleDateFormat(DatePickerProperty.DEFAULT_DATE_TIME_PATTERN);
controlStyle = DatePickerProperty.DEFAULT_DATE_TIME_CONTROL_STYLE;
}