In 3.0 you can start with an abstract ObjEntity instead of a
superclass outside Cayenne. You will still have to create those
columns in the DbEntity definitions. Also this feature is rather new,
so there may be some snags in runtime.
So I guess the safest path is what I described in my original message.
Also if you are on 3.0M5, you can use copy/paste in the Modeler to
propagate common DbAttributes. Not ideal of course, but should
eliminate some typing and clicking.
Andrus
On Mar 23, 2009, at 9:29 AM, csergiu77 wrote:
>
> Hi
> thx for answer ,glad that is possible but is till have one question.
>
> if i start desingning the database i should add this commom fileds
> manually
> to all tables ?
>
> or is possible to start with objects and then generate tables ?
>
> cause if i start with objects and for each object i create i just
> specify
> that it extedns a class that has those common fields then is super
> ok .
>
>
>
>
>
> Andrus Adamchik wrote:
>>
>> Hi there,
>>
>> you can use a common superclass that extends CayenneDataObject. Enter
>> it for the DataMap under "Custom Superclass" and then click
>> "Update...".
>>
>> Optionally you may declare getters and setters as abstract in this
>> superclass. Whether you do that or not, Cayenne will generate correct
>> access code in subclasses.
>>
>> Andrus
>>
>>
>> On Mar 21, 2009, at 9:22 PM, csergiu77 wrote:
>>
>>>
>>> i would like to do the folowing :
>>>
>>> each table that i will have into my database must have :
>>>
>>>
>>> id
>>> create_date
>>> create_user_id
>>> write_date
>>> write_user_id
>>>
>>>
>>> Normally i though to subclass each of my data model classes to a
>>> class
>>> that has these fields.
>>>
>>> How this can be done using cayenne ?
>>>
>>> Thx
>>> --
>>> View this message in context:
>>> http://www.nabble.com/inheritance-tp22639408p22639408.html
>>> Sent from the Cayenne - User mailing list archive at Nabble.com.
>>>
>>>
>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/inheritance-tp22639408p22655366.html
> Sent from the Cayenne - User mailing list archive at Nabble.com.
>
>
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