Re: CIMDataTime format when the value is Date type.

If a CIM object (or instance) does have
a property of type datetime and the provider does not set it, as well as
there is no default value specified for the corresponding class, the returned
value for the property should be NULL. Using the OpenPegasus C++ client
interface you have to first get the CIMValue from a CIMProperty and check
if the value is NULL (by calling isNull() function). That will tell you
if the property value is NULL.



If you want to explicitly set a property
of type datetime to NULL you would do this by creating a null CIMValue
object and then setting that on your CIMProperty using the setValue function.







There is no way for a server to know
from class definition allone if a datetime value actually is a time stamp
or interval. That distinction can only be made when you have a specific
value (from an instance or object) and thus can check through the separator.



Mit freundlichen Grüßen / Kind regards

Marek Szermutzky



Software Engineer / OpenPegasus Maintainer (PMC) and z/OS PlatformRep.

IBM Systems &Technology Group, Systems Software Development / z/OS
Capacity Management and Support

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From: 
"Yaligar, Veeresh
S \(USD SRDL\)" <[email protected]>

To: 
"[email protected]"
<[email protected]>

Date: 
16.09.2011 19:43

Subject: 
CIMDataTime
format when the value is Date type.



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Hi All

As per the documentation of CIMDataTime
( http://www.openpegasus.org/manual/CIMDateTime.html )
any CIM property of CIMDataTime if not initialized will be of value
“00000000000000.000000:000” which is of type interval. 

Now, if a property of a CIM object is required
to hold the Date value instead of interval ( for example Manufacture Date)
and if that value is not explicitly set then it should have been implicitly
set with some null value in the format of Date instead of interval for
example “00000000000000.000000+000” or an empty string “”. I guess
this would have been the desired behavior. Because one of our client application
try to parse the date field and expects it in the Date format. If we are
not filling it in the provider then there is no way to get it to the form
as “00000000000000.000000+000”. 

Any thoughts how to handle this use case?

Thanks in advance.

Veeresh