Perhaps this is a more direct way of asking the question:

How do we tell OpenJPA that whenever it encounters a single- or
multi-valued field of one of our persistent interface types, use our
value handler?

We currently use the @Strategy annotation on single-valued fields,
which is ok, but (1) it doesn't work on multi-valued fields, and (2)
we'd like to specify it across all entities without having to go to
place the annotation on each field individually.

On Wed, Oct 21, 2009 at 9:12 AM, Matthew Adams <[email protected]> wrote:
> Hi all,
>
> We make use of persistent interfaces in our object model.  All of our
> entities have a Long id, including all implementations of all
> persistent interfaces, so we'd like to map any field that refers to a
> persistent interface to two columns, one for the id value and one for
> the implementation class name.  Our custom value handler is working
> nicely for single-valued fields, but it is not treating collection of
> an interface correctly.  Instead of OpenJPA iterating the collection
> and calling our custom value handler, it is passing the collection
> itself to our value handler.
>
> Question:  how do configure OpenJPA that whenever it encounters an
> object of a given type, whether it be in a single- or multi-valued
> field, to use a specific value handler?
>
> If we can't do that, how do we implement a value handler that handles
> collection fields of types that need to have custom value handlers?
>
> Thanks,
> Matthew
>



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