CURR11 — Place maximums on wstrings for interoperability

Should the interfaces that accept a wstring also somehow state the maximum length of that data string? This is necessary for the implementation to know the maximum number of wide characters that may need to be stored in a persistence repository. e.g. Currency.mnemonic is three? This also includes the following : Currency.name, Currency.fractionName, Currency.symbol, Currency.fractionSymbol, Currency.description, Currency.ISOVersion, a locale wstring, ExchangeRate.rateType, CurrencyBook.publishedVersion, MoneyFormatter.formattingString, MoneyFormatter.groupingSymbol, MoneyFormatter.negativePrefixSymbol, MoneyFormatter.radixSymbol.