Handling Currency Data type in a Web Service

Question

hello,
I have created a Java Web Service n i have tested the support for all the data types w.r.t to Java Client n C# Client.
In case of other data types, they are supported by both the clients. But in case of currency, it is not supported since there is no currency data type in C#.
For reference:
public int testInt (int aValue) throws Exception
mLogger.info("SampleAPI.testInt: Value: " + aValue);
return aValue;
I have created this method to test the support for Integer data type n it is working fine for both the clients. I want that same should be achieved for Currency Data type also.
Problem is: Since Currency does not have a constructor. i cannot set the value at the C# client end n it shows the error "Cannot create the instance of java.util.currency"
So, i reached this solution of handling the currency data type on the Service end itself by converting the currency value into decimal when the C# client sends a request for currency data type and convert it again into Currency from Decimal when the client sets the value at the Web Service end.
But it cannot be achieved since currency is not defined in any monetary sense but is using only the currency codes, so it cannot be converted.
Please tell me how to handle this thing?? Any suggestion will be appreciated.
Thanks & Regards,
Kapil

Answer 1

hello
i have created a transfer structure which contains the attributes of Currency class such as CurrencyCode, CurrencySymbol and FractionDigits. I can get these three attributes by:
    public CurrencyStructure getCurrency ()
        mLogger.info("SampleAPIImpl.getCurrency: ");
        Currency currency = mBackend.getCurrencyValue();
        CurrencyStructure currencyStructure = new CurrencyStructure();
        // Get the values
        currencyStructure.code = currency.getCurrencyCode();
        currencyStructure.symbol = currency.getSymbol();
        currencyStructure.fractionDigits = currency.getDefaultFractionDigits();
        return currencyStructure;
    }The C# client can get the values by calling mService.getCurrency();
The C# client can also set/change the value like this on client-end:
  public void testSetCurrency ()
        CurrencyStructure currencyStructure = new CurrencyStructure();
        // Initialize the values
        currencyStructure.code = "EUR";
        currencyStructure.symbol = "e";
        currencyStructure.fractionDigits = 3;
        mService.setCurrency(currencyStructure);
}Now i want that these values should be set on the Web Service side but i m not able to set since Currency class has no setters.
I m setting the values at Service end like this, but there is no setCurrencyCode() method available in Currency class.
    public void setCurrency (CurrencyStructure aValue)
        mLogger.info("SampleAPIImpl.setCurrency: " + aValue);
        Currency currency = mBackend.getCurrencyValue();
        // Set the values
        currency.setCurrencyCode(aValue.code);
        currency.setSymbol(aValue.symbol);
        currency.setDefaultFractionDigits(aValue.fractionDigits);
    }How to achieve this??