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Posted to dev@tuscany.apache.org by Raymond Feng <en...@gmail.com> on 2006/08/14 23:13:24 UTC

[SDO] Hierarchical TypeHelper support for recursive composite model?

Hi,

We're looking into the integration of SDO and Axis2 for the web service binding. One issue coming into the picture again is that how we maintain a hierachy of SDO TypeHelpers corresponding to the recursive composite model so that SCA artifacts in each level will have their view to the SDO typing system. I remember there were quite a few discussions related to this requirement before on this list. Do we have anything in place that I can leverage? 

Thanks,
Raymond

Re: [SDO] Hierarchical TypeHelper support for recursive composite model?

Posted by Yang ZHONG <le...@gmail.com>.

Normally, there're several ways to associate two things.

1. Registry such as WeakKeyMap<Composite,TypeHelper>
    Before SDO parties reach an agreement to provide a registry service
(ever),
    SCA potentially can implement the registry (for the time being)

2. Direct link from Composite to TypeHelper, e.g. Composite#getTypeHelper()


On 8/14/06, Raymond Feng <en...@gmail.com> wrote:
>
> Hi,
>
> We're looking into the integration of SDO and Axis2 for the web service
> binding. One issue coming into the picture again is that how we maintain a
> hierachy of SDO TypeHelpers corresponding to the recursive composite model
> so that SCA artifacts in each level will have their view to the SDO typing
> system. I remember there were quite a few discussions related to this
> requirement before on this list. Do we have anything in place that I can
> leverage?
>
> Thanks,
> Raymond
>



-- 

Yang ZHONG

Re: [SDO] Hierarchical TypeHelper support for recursive composite model?

Posted by Fuhwei Lwo <fu...@bricemedia.com>.

Hi Raymond,
   
  I believe Frank Budinsky may have some design in mind.  He's on vacation this week. Should be back next week.
   
  Although current Java SDO implementation allows you to create multiple instances of TypeHelper from SDOUtil for different scopes.  They basically share the same type registries. I think we need to fix that as soon as possible.
   
  Fuhwei

Raymond Feng <en...@gmail.com> wrote:
  Hi,

We're looking into the integration of SDO and Axis2 for the web service binding. One issue coming into the picture again is that how we maintain a hierachy of SDO TypeHelpers corresponding to the recursive composite model so that SCA artifacts in each level will have their view to the SDO typing system. I remember there were quite a few discussions related to this requirement before on this list. Do we have anything in place that I can leverage? 

Thanks,
Raymond