RE: NcML data type for uint64

That link tells us about the “_Unsigned” attribute, which is fine. 

The question remains – can we declare a 64-bit signed or unsigned int using NcML - the NcML 2.2 schema doesn’t provide for a 64-bit int (unless it’s  type=“long” with _Unsigned=”true”?):

 

     <!--

 possible data types for Variable, Attribute objects

  -->

- <xsd:simpleType name="DataType">

- <xsd:restriction base="xsd:token">

  <xsd:enumeration value="byte" />

  <xsd:enumeration value="char" />

  <xsd:enumeration value="short" />

  <xsd:enumeration value="int" />

  <xsd:enumeration value="long" />

  <xsd:enumeration value="float" />

  <xsd:enumeration value="double" />

  <xsd:enumeration value="String" />

  <xsd:enumeration value="string" />

  <xsd:enumeration value="Structure" />

  <xsd:enumeration value="Sequence" />

  <xsd:enumeration value="opaque" />

  <xsd:enumeration value="enum1" />

  <xsd:enumeration value="enum2" />

  <xsd:enumeration value="enum4" />

  </xsd:restriction>

  </xsd:simpleType>

 

 

 

Mike

 

From: John Caron [mailto:address@hidden]
Sent: Tuesday, August 05, 2014 2:44 PM
To: Carlomusto, Michael
Cc: address@hidden; Horne, Randy (Contractor); address@hidden
Subject: Re: NcML data type for uint64

 

Have a look here:

 

http://www.unidata.ucar.edu/software/thredds/v4.5/netcdf-java/reference/faq.html#ncml_unsigned

 

On Mon, Aug 4, 2014 at 3:33 PM, Carlomusto, Michael <address@hidden> wrote:

John and Russ,

Uint64 is not an allowable data types in the  2.2 version of the NcML schema.

 

Is there a way to get around this so we can define a variable as a 64-bit unsigned integer using NcML?

 

Thanks.

Mike Carlomusto

 

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