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Jon,

FWIW,

We fought with this issue several years ago. We ended up creating a
design/framework where you allow the user to specify a "formatter" for
output when rending to the screen. IE.. So we keep the Date stored
internally as a java.sql.Date but we format it upon UI generation from the
business model.

A simple example:

http://www.planetjavainc.com/wowADDONDEV/runApp?id=121&_pj_lib=wowsamp

Example formatting code:

// Format Date with ISO
public class DateFormatterISOYearMonthDay implements IFormatter {

@Override
public String formatValue(Object value, Field field) {
if (value == null) {
// no value, return empty string
return "";
}

// create new date formatter, set up as (YearYearYearYear-MonthMonth-DayDay)
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
// format the field value using the new date formatter
String s = formatter.format(value);
// return formatted value
return s;
}
}

// Format Date with Locale Default
public class LocaleSpecificDateFormatter implements IFormatter {

@Override
public String formatValue(Object value, Field field) {
if (value == null) {
// no value, return empty string
return "";
}

String dateOut;
DateFormat dateFormatter;
Locale currentLocale = Locale.getDefault(); // get default java locale

dateFormatter = DateFormat.getDateInstance(DateFormat.DEFAULT,
currentLocale); // set DateFormat based on locale
dateOut = dateFormatter.format(value); // format value
// return formatted value
return dateOut;
}


-Paul Holm

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