Ummm....You can get access to the Registry object, but it's not easy, and
for a good reason.
~Anything~ in tapestry can have a hivemind service injected into it. Esp a
hivemind service, or a DAO, which is what you are doing right? I don't know
what all of your crazy configs are doing, but I have a hibernate hivemind
service point that looks sort of like:
<service-point id="SessionProxy" interface="org.hibernate.Session">
...//threaded
</service>
I then take this hibernate session, bound to my web thread(or POJO service
thread, or JMS queue thread, or whatever other fun threads I want to use :)
), and use it without thinking. Sometimes it's in pages/components, but
most often I create a simple DAO that might look like:
<service-point id="SomeDAO" >
<construct class="com.foo.SomeDAOImpl">
<set-service id="SessionProxy" property="session" />
</construct>
</service>
Something like that.. Is this what you're doing?
On 12/4/05, Raul Raja Martinez <[EMAIL PROTECTED]> wrote:
>
> Hi Jean-Francois, first of all thanks for your help,
>
> My pojo is basicaly the menu of my webapp, since everybody will have the
> same I thought that the best thing would be to make it an application
> scope object and fetch the records at startup. since i have already
> declared a Hibernate Session service I wanted to inject that service
> into this object so that I could use it to query the objects.
>
> I have also many webservices in the same webapp that are not tapestry
> related and I'd like to use these services both in the tapestry and
> servlets.
>
> I think this is or would be a common problem for Tapestry 4 users.
> Many have already asked how to access the Tapestry hivemind registry
> from other objects that are not of type Component or Page. My problem is
> that I don't even know if this is posible since someone mentioned in
> this newsgroup that the Tapestry hivemind registry wasn't available
> directly and also annotations like @InjectObject only work within pages
> or components.
>
> Anyway, I'll try your solution,
> Is there a newsgroup for Hivemind utilities?
>
> Thanks,
>
> Raul.
>
>
> Jean-Francois Poilpret wrote:
> > Hi Raul,
> >
> > I do not know Tapestry, but I know HiveUtils (I wrote it;-)), the
> > contribution you describe below seems OK to me (at first sight).
> >
> > However it depends exactly on what you want to achieve.
> > In particular is your POJO a singleton in your application, or do you
> need
> > to inject a new instance every time? From your initial Tapestry example,
> I
> > believe it is a singleton, so when using HiveUtils, you should probably
> put
> > the "cache" attribute to true to make sure HiveUtils will not create
> more
> > than one instance:
> >
> > <contribution configuration-id="hiveutils.ObjectBuilderObjects">
> > <object name="globalMenu" cached="true"
> > class="com.estudiowebs.CMS.DAO.GlobalMenu">
> > <inject
> > object="service:com.estudiowebs.CMS.services.EntityService" />
> > <inject-arg />
> > </object>
> > </contribution>
> >
> > Please note however that according to the above config (independently of
> the
> > cache attribute), you need to use hiveutils.ObjectBuilder service to get
> the
> > instance of your object because, you have declared your POJO to require
> a
> > runtime argument in the constructor ("<inject-arg/>") which means the
> > constructor for it should look like:
> > public GlobalMenu(com.estudiowebs.CMS.services.EntityService
> > service,
> > MyArgType myarg) {...
> > NB: MyArgType can be any type.
> >
> > Then to get the instance of your POJO you need to do:
> >
> > ObjectBuilder builder =...
> > GlobalMenu globaleMenu = builder.create("globalMenu", myArg);
> >
> > where myArg is of type MyArgType.
> >
> > Is this what you want to do?
> > Do you really need the extra runtime argument?
> > If not then it would make it easier to inject globalMenu into other
> objects,
> > services, or configurations by using:
> > "object:globalMenu"
> >
> > I hope it gives you a better view of what you can do and how you can do
> it,
> > now if you need further precisions or if you want to give more details
> about
> > what you want to do, you are welcome.
> >
> > One last point: HiveUtils is part of the HiveMind Utilities project on
> > SourceForge (formarly known as "hivetranse"), which is independent of
> > HiveMind and Tapestry (by independent I talk about the involved persons
> and
> > the communication channels). So it might be better to proceed with this
> > discussion on the HiveMind Utilities forums, except if this is a common
> > Tapestry problem.
> >
> > Cheers
> >
> > Jean-Francois
> >
> > -----Original Message-----
> > From: news [mailto:[EMAIL PROTECTED] On Behalf Of Raul Raja Martinez
> > Sent: Sunday, December 04, 2005 5:54 AM
> > To: [email protected]
> > Subject: Re: Injecting registry services to POJOS
> >
> > I was trying to do that using hiveutils, sorry, but still very new to
> > hivemind and IOC:
> >
> > <contribution configuration-id="hiveutils.ObjectBuilderObjects">
> >
> > <objectname="globalMenu"cached="false"class="
> com.estudiowebs.CMS.DAO.GlobalM
> > enu">
> > <inject
> > object="service:com.estudiowebs.CMS.services.EntityService" />
> > <inject-arg />
> > </object>
> >
> > </contribution>
> >
> > I just need and example on how to inject one of my services in one of my
> > POJO so that I can access my hibernate session from my pojos.
> >
> > Thanks.
> >
> > Raul.
> >
> >
> > John Coleman wrote:
> >> HiveMind injects by interface automatically if you use its service
> builder
> >> (it will use setter methods of the declared interface type), in
> Tapestry
> >> pages you can also use the page to inject services. So you never have
> to
> > use
> >> annotations.
> >>
> >> I don't think it matters about the order of instantiation, HM should
> > insure
> >> every service is set up with the references it needs.
> >>
> >> John
> >>
> >> ----- Original Message -----
> >> From: "Raul Raja Martinez" <[EMAIL PROTECTED]>
> >> To: <[email protected]>
> >> Sent: Saturday, December 03, 2005 11:46 AM
> >> Subject: Injecting registry services to POJOS
> >>
> >>
> >>> Hi,
> >>>
> >>> I have a service in my hivemodule.xml that I'd like to inject in a
> Pojo
> >>> that at the same time gets loaded as a an application scope object at
> >>> startup:
> >>>
> >>> <contribution configuration-id="tapestry.state.ApplicationObjects">
> >>> <state-object name="globalMenu" scope="application">
> >>> <create-instance class="com.estudiowebs.CMS.DAO.GlobalMenu" />
> >>> </state-object>
> >>> </contribution>
> >>>
> >>> This is an object that I load from the database once at startup and I
> >>> need to inject my Hivetranse Hibernate3 session service into it so
> that
> >>> I use that service for loading the object.
> >>> Since annotations like @InjectObject are not allowed in regular POJOS
> >>> and I don't have access to the Tapestry Registry, I don't really know
> >>> what would be the best way to solve this problem
> >>>
> >>> On the other side I have in the same application a couple of servlets
> >>> that serve as XML source for a Laszlo application, and I have the same
> >>> problem.
> >>>
> >>> Any help is appreciated.
> >>>
> >>>
> >>> I'd really love to be able to @InjectObject("service....") anywhere
> >>>
> >>>
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> >>>
> >>
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> >>
> >
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> >
> >
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