Change Money.toString() to show currency code at end

[stokito]

Not sure if this should be discussed here or on API level but I wan't to propose to change behavior of MonetaryAmount.toString() methods. Currently they return a string when first is a currency code and then follows an amount i.e. USD 42.01. But numbers are Arabic numbers i.e. written from right to left and should be right justified when rendered in tables so the currency code should be on the end.

left align	right align	right align and code at end
BTC 0.0001	BTC 0.0001	0.0001 BTC
USD 0.00	USD 0.00	0.00 USD
USD 42.00	USD 42.00	42.00 USD
USD 9000	USD 9000	9000 USD
USD 100500.00	USD 100500	100500 USD

I added an example with Bitcoin to show that actually it should be aligned to point but for most cases it will be enough just to make a simple align to right.

So maybe in v2 we can change this behavior?

[atsticks]

This is arguable and an implementation detail. We basically can do that change. I would also add a ticket to use default rounding based on the currency for formatting the amount as well.

[keilw]

I's nothing for the API, even the style for formatting and everything else is currently part of the RI, not API. As this is a breaking change that affects all sorts of parse and serialization aspects (e.g. the JSON libraries) it must be done with great caution and enough notice for users to adopt. IMO it should be possible to configure e.g. in a javamoney.properties or other configuration (maybe the RI could even use something like Tamaya then ;-) so it can be overriden. Whether or not the default is left or right, we can see, but it clearly isn't for the MR.

[atsticks]

The current solution (starting with this release) dies:

1. Apply defaukt rounding according to the currency of the amount.
2. Apply default formatting based on the current default locale.

[stokito]

Please take a look on my comment #307 (comment) about the current solution.

Here I talked exactly about the universal serialization form i.e. not about the localized format to display for users.
I guess here the proper format should depend on a some standard de-facto in financial applications if it ever existed.
I googled and here what I found:

What is the difference between 20$ and $20

Here is a discussion more about a tradition of the currency sign position in different countries.
We can't chose any country's format as a standard but at least for USA this makes sense: we already using number format from USA and most of financial institutions are from USA or at least working with them.

American dollar (symbol) (Linguistic recommendation from the Translation Bureau)

Here is clearly said that in financial world the currency code is always in the end (as I proposed).

Anyway, this should be specified in the specification so please reopen the task at least to keep a discussion and finalize the decision.