Define currency global

[djmj]

It feels a little cumbersome to repeat the same code in many places (item, sum, tax) like:

final MonetarySummation sum = new MonetarySummation();
sum.setLineTotal(new Amount(lineTotal, CurrencyCode.EUR));
sum.setChargeTotal(new Amount(chargeTotal, CurrencyCode.EUR));

This approach would reduce code and make it more readable:

final MonetarySummation sum = new MonetarySummation(CurrencyCode.EUR);
sum.setLineTotal(lineTotal);
sum.setChargeTotal(chargeTotal);

Defining the currency on Invoice level would be the most elegant solution.

[Vad1mo]

This would break the API, but its a nice concept.

Before approving the change, We need to make sure that an Invoice must have only one currency.

This would be something for 2.0

[stale]

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