[Zope3-dev] Re: [Zope3-checkins] SVN: Zope3/trunk/src/zope/dublincore/ Dublin Core property to use Dublin Core meta data as simple properties.

[Jürgen Kartnaller]

Fred Drake wrote:
> On 8/14/06, Jürgen Kartnaller <juergen at kartnaller.at> wrote:
>> It definitely doesn't obsolete the existing implementation.
>> DCProperty is the other way around.
>>
>> DCProperty allows access to DC meta data via simple properties.
> 
> I agree that these should co-exist.  I'm not sure just what motivated
> DCProperty, but it's clearly different from the partial adapter.  The
> motivation for theh partial adapter was that for some content, some of
> the data fields correspond directly to DC elements.  For those, we
> wanted the DC adapter to use the fields instead of storing the
> information outside the object.

When defining our content types we almost always end up with properties 
which are already defined in Dublin Core. Also the Dublin Core 
implementation of Zope 3 gives us a lot of meta data for free. Dublin 
Core has the advantage that the access to common information is 
standardized but it is not as easy to access DC meta data as it is to 
access a simple property of the content type.
So we decided to have the advantage of Dublin Core and the advantage of 
simple property access in one.


Regards
Jürgen