Ok Vlada,
I think now we are on the same page... the problem I am having is
due to this phrase :
"methods of the home interface are defined as type-specific, not
generic"
Vlada.
What I am trying to do is having a call to create on a generic
Home Interface and unfortunately
I think this will not be possible... at least I can't seem to find a
reasonable implementation for that :
EJBObject _genericSkel = _genericHome.create(_genericPk);
THERE IS NO WAY TO CREATE AN INTERFACE CALLED GENERICHOME THAT
WOULD HAVE
A CREATE METHOD BECAUSE THE REMOTE INTERFACE TYPE IS STILL NOT DEFINED !!!
Do you see any solution for that... I think it could be very useful...
thanks a lot and if you still don't understand my question please feel free
to give me a call ... I'd appreciate
it !
At 10:18 AM 1/19/00 -0800, you wrote:
>I misunderstood your question. I still don't fully understand what you are
>trying to accomplish.
>Could you send a more specific example using the late binding technique?
>Perhaps we
>can figure out a solution that would work with you within the spec
>constraints.
>
>Note that we wanted to make the home interface type-safe. Therefore, the
>create and finder
>methods of the home interface are defined as type-specific, not generic.
>The other reason
>why we wanted the methods to return the exact type was to avoid the client
>to perform
>the PortableRemoteObject.narrow operation.
>
>Vlada
>
>----- Original Message -----
>From: Mario de Sa Vera <[EMAIL PROTECTED]>
>To: Vlada Matena <[EMAIL PROTECTED]>
>Sent: Wednesday, January 19, 2000 9:18 AM
>Subject: Re: EJBHome create method
>
>
> > Thanks Vlada for the prompt response...
> >
> > Are you sure Vlada ? I think the EJB specification REQUIRES
> that the
> > return type for the create method from the Home Interface HAS TO BE THE
> > REMOTE INTERFACE type and not a generic type like EJBObject... this is
> > exactly the problem I am facing... this is bringing me a huge problem
> because
> > as we know this implementation would be ideal and very standard in terms of
> > Object Oriented design ... I am using a generic implementation that at
> run time
> > will be replaced by a specific implementation of this generic class
> (classic
> > late binding) but the problem is that the EJBHome specification as I said
> > before
> > does not have a generic create method implementation and if I create
> one there
> > is no way for it to work because I can't predefine the Remote Interface
> return
> > type do you understand ?
> >
> > thanks again.
> >
> >
> >
> > At 08:50 AM 1/19/00 -0800, you wrote:
> > >You can define the generic create(Serializable pkey) method in the home
> > >interface,
> > >and the corresponding ejbCreate(Serializable pkey) method in the bean
> class.
> > >
> > >Vlada
> > >
> > >----- Original Message -----
> > >From: Mario de Sa Vera <[EMAIL PROTECTED]>
> > >To: <[EMAIL PROTECTED]>
> > >Sent: Wednesday, January 19, 2000 7:45 AM
> > >Subject: EJBHome create method
> > >
> > >
> > > > Hello guys,
> > > >
> > > >
> > > > I've being involved on a couple of projects using EJB since last
> year and
> > > > for the first
> > > > time I find myself facing a wall that will be very hard for me to
> overcome
> > > > it. May be you could
> > > > help me out either by answering me or sending me a EJB list group
> to help
> > > > me out somehow...
> > > >
> > > > EJBHome does not define a generic create method although the EJB
> compiler
> > > > requires (to
> > > > a certain extent) that you define one and once you define one create
> > > method
> > > > at your home
> > > > interface it checks if you defined a correspondent method at the Bean
> > > class
> > > > (ejbCreate). This
> > > > scenario works fine if you already know in advance the Remote Interface
> > > > class because that
> > > > way you can define create methods from your home interface
> returning the
> > > > already known type
> > > > of the Remote Interface...
> > > >
> > > > The problem I am facing is that I want to have a late binding Remote
> > > > Interface creation which
> > > > will require a generic Home Interface that defines a generic create
> method
> > > > but the specification does
> > > > not allow me to do that because there is no generic create method
> at the
> > > > EJBHome like :
> > > >
> > > > EJBObject create(EJBPrimaryKey) // I am going further with the
> > > > specification this is only a suggestion.
> > > >
> > > >
> > > > Will I have to simulate an Entity Bean using Session Beans ?
> > > >
> > > > thanks.
> > > >
> > > >
> > > > Mario de Sa Vera
> > > > Applications Engineer
> > > > 161 Maiden Lane
> > > > New York City 10038
> > > > (212) 487-7400
> > > >
> >
> >
Mario de Sa Vera
Applications Engineer
161 Maiden Lane
New York City 10038
(212) 487-7400
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