*/
public static NSNumberFormatter numberFormatterForPattern(String pattern) {
NSNumberFormatter formatter;
if(ERXLocalizer.useLocalizedFormatters()) {
ERXLocalizer localizer = ERXLocalizer.currentLocalizer();
formatter = (NSNumberFormatter)localizer.localizedNumberFormatForKey(pattern);
} else {
formatter = (NSNumberFormatter)_repository.get(pattern);
if(formatter == null) {
formatter = new ERXNumberFormatter(pattern);
_repository.put(pattern, formatter);