Configuration of currency style without dependency on an implementation

[vb-chris]

I'm trying to create a MonetaryAmountFormat that uses the currency unit symbol:

MonetaryAmountFormat format = MonetaryFormats.getAmountFormat(
  AmountFormatQueryBuilder.of(Locale.GERMANY)
                          .set(org.javamoney.moneta.format.CurrencyStyle.SYMBOL)
                          .set("pattern", "#,##0.##¤")
                          .build()
);

The java/maven project has a dependency on moneta in runtime (not compile-time) scope. It seems that the class CurrencyStyle and its value SYMBOL are part of moneta, the java-money reference implementation, and not part of the java-money API. Thus, the code does not compile.

I'd prefer to create a MonetaryAmountFormat that uses the currency unit symbol without a compile-time dependency on an implementation.

(previously asked on Stack Overflow)

[keilw]

@vb-chris Do you suggest, CurrencyStyle should probably move to the API here?
We cannot change the API right now without a working Spec Lead or Maintenance Lead, but we're hoping to have a new Money JSR in the near future to deal with those API changes.

[vb-chris]

Movement of CurrencyStyle seems appropriate to me when all implementations are required to support all options.
For my use case, it would be sufficient when the API defined a Key/Value-Pair of Strings which is respected by implementations.

[keilw]

We have some possible new features for a possible new Money API, trying to use the Configuration API from JSR 382 is among them, not only for this particular case, but others like ExchangeRateProviders, etc.