AW: [xsd-users] xsd:decimal and fractation digits

[Forstner Michael]

Hi,

I've had the same problem and patched the XSD-Library for my needs:

include/xsd/cxx/tree/serialization.hxx:

  inline void
  operator<< (xercesc::DOMElement& e, double d)
  {
    std::basic_ostringstream<char> os;
    os.imbue (std::locale::classic ());

    os.precision(2); //Patch: ALWAYS 2 fraction digits

    // We map both xsd:double and xsd:decimal to double and decimal
    [...]

    e << s;
  }

  inline void
  operator<< (xercesc::DOMAttr& a, double d)
  {
    std::basic_ostringstream<char> os;
    os.imbue (std::locale::classic ());

    os.precision (2); //Patch: ALWAYS 2 fraction digits

    // We map both xsd:double and xsd:decimal to double and decimal
    [...]

    a << s;
  } 

Hope that helps.

Regards,
Michael

> -----Ursprüngliche Nachricht-----
> Von: xsd-users-bounces at codesynthesis.com 
> [mailto:xsd-users-bounces at codesynthesis.com] Im Auftrag von 
> Tolonen, Petteri
> Gesendet: Donnerstag, 26. Juni 2008 12:39
> An: xsd-users at codesynthesis.com
> Betreff: [xsd-users] xsd:decimal and fractation digits
> 
> Hi,
> 
> My problem is too many decimal digits in decimal fields.
> When fractation digits will be supported?
> 
> Part of my schema:
> <xsd:complexType name="QuantityType">
>   <xsd:sequence>
> 
>     <xsd:element name="Quantity">
>       <xsd:simpleType>
>         <xsd:restriction base="xsd:decimal">
>           <xsd:totalDigits value="10" />
>           <xsd:fractionDigits value="2" />
>         </xsd:restriction>
>       </xsd:simpleType>
>     </xsd:element>
> 
>     <xsd:element name="QuantityUoM" type="UoMType" />
>   </xsd:sequence>
> </xsd:complexType>
> 
> I'll set Quantity to 213.23 and result aint what i am looking for.
> 
> Result:
>     <Quantity>
>       <Quantity>213.22999999999999</Quantity>
>       <QuantityUoM>kg</QuantityUoM>
>     </Quantity>
> 
> As i readed posts, i run in to this
> http://codesynthesis.com/pipermail/xsd-users/2007-September/00
> 1215.html
> 
> Should i try to make custom decimal type or should i make 
> custon type from Quantity with decimal truncation?
> What if there will be more xsd:desimal elements with 
> different amount of fractation digits.
> And does it have effect that Quantity's parent element is 
> also Quantity?
> 
> For note: I can't make changes to schema.
> 
> An another thing, i tried to read back the generated xml and i'll get
> these errors for every element:
> 
> error: Element 'Quantity' should be un-qualified
> 
> Sample xml:
> 
> <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
> <GI xmlns="MYOWNNAMESPACE" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="MYOWNNAMESPACE MYXSDFILE.xsd">
> ...
> 
>   <Quantity>213.22999999999999</Quantity>
> ...
> <GI/>
> 
> 
> Petteri Tolonen
> 
>