If you require wiring of "beans" (not hivemind services), I'd look for
an aspect-oriented solution. The spring framework supports this
through the @Configurable annotation. It wouldn't be too tough to
come up with something like that for HiveMind. I did some work
enabling AspectJ and HiveMind
(http://svn.javaforge.com/svn/hivemind/hivemind-aspectj). That could
get you started. Basically, what you need is an aspect that can
autowire a bean given a HiveMind registry. The trick is setting the
registry property of the aspect, but that shoulnd't be too tough with
a custom factory of some sorts (like I do in hivemind-aspectj, but
you'd just set the registry property on the aspect instance).
On 7/12/07, Johan Lindquist <[EMAIL PROTECTED]> wrote:
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Hi Stephane,
My ask first what you exactly are trying to do? What is the reason you
would like to define the parent/child object within Hivemind and then
persist them?
Are the parent/child objects not simple beans just now which (without
involving hivemind) can be stored/retrieved etc using the DAO service
(which is defined in Hivemind as a service)?
Cheers,
Johan
Stephane Decleire wrote:
> ================
> Approach 1 :
>
> I have two pojos : Parent and Child with there respective interface
> IParent and IChild.
>
> public Interface IParent {
> public void setChild(IChild child);
> public IChild getChild();
> }
>
> In Hivemind, i have declared the services below :
>
> <service-point id="Parent" interface="IParent">
> <invoke-factory>
> <construct class="Parent">
> <set-object property="child" value="service:Child"/>
> </construct>
> </invoke-factory>
> </service-point>
>
> <service-point id="Child" interface="IChild">
> <invoke-factory>
> <construct class="Child"/>
> </invoke-factory>
> </service-point>
>
>
> Hivemind works with interfaces so, in my code, i get a child from its
> parent :
> IChild child1 = parent.getChild();
> Using this approach, i assume that child1 is in fact a Hivemind proxy on
> my child1 pojo (tell me if i'm wrong). So i can't convert IChild into
> Child ...
>
> And then, i would like to persist my pojo child1 using a DAO :
>
> public Interface IChildDao {
> public void persist(IChild child);
> }
>
> But Hibernate doesn't know how to persist IChild because what it really
> try to persist is a Hivemind proxy !
>
> ================
> Approach 2 :
>
> I know that Hibernate isn't able to persist the interface so the my DAO
> interface becomes :
>
> public Interface IChildDao {
> public void persist(Child child);
> }
>
> So i need to get the instance of my pojo Child and not an interface from
> my pojo Parent :
> Child child1 = parent.getChild();
>
> That's implies that my parent interface becomes :
>
> public Interface IParent {
> public void setChild(Child child);
> public Child getChild();
> }
>
> And in this case Hivemind doesn't build my services !
>
> I can't find the architecture which satisfies both framework ...
> Any help would be very appreciated !
>
> Stephane.
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