On 19/05/2008, at 12:09 AM, Adrian Wiesmann wrote:
We were discussing that on this list before. I am looking for a way to
generate DataObjects without a reference to a table in the database.
Something like a virtual DataObject.
My usage scenario is it to have a DataObject which can be bound to
the UI
but which is only used to prepare data for a query and never should be
persisted to the database.
I remember some discussion about introducing some kind of
inheritance to
Cayenne which would support my usage scenario. I just wanted to
check back
with you if something already happened there?
There should be something coming soon with inheritance, but there were
no plans to support persistent objects with no database backing at
all. There is going to be the opposite concept: abstract classes which
have a database table, but which can only be constructed in their
subclass.
Tell us more about why it would be useful to have data objects which
cannot be persisted to the database.
Ari
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