Let me try to hazard a possible answer. Since you already have a
reference to this particular instance of an entity bean, it does not
make sense to remove this instance using any parameters. You are
thinking in terms of a relational database instead of thinking in terms
of an object. Remember, using a relational database is just one of many
possible ways of persisting an entity bean, not the only one.
Roslan Amir.
Jonathan Baker wrote:
>
> Raj:
>
> That is also a good question! I'm not sure why, but I do think it is a hole
> in the specifications here.
>
> Jonathan
>
> Raj Sekhar wrote:
> >
> > Jonathan,
> >
> > Thanx for the reply. U r saying that remove method
> > will only applicable to one instance.. its well and
> > good But my question is...
> >
> > Why did not EJB specification provide any method which
> > deletes records based on a condition like a finder
> > method is taking a parameter and it is returning
> > Enumeration or Collection object.
> >
> > Thanx in advance
> >
> > Raj
> >
> > --- Jonathan Baker <[EMAIL PROTECTED]> wrote:
> > > That is because remove() operates on the particular
> > > instance. For example,
> > > in Entity beans, if you call remove() you will be
> > > deleting the specific
> > > entity on which it is called. Since you can't be
> > > talking to more than one
> > > instance at a time, you can't delete more than one
> > > at a time.
> > >
> > > If you want to have a 'mass deletion' routine, I
> > > would put it in a Session
> > > bean. That bean could take all of the parameters
> > > required for the delete,
> > > and then perform a delete as a single line of SQL.
> > >
> > >
> > >
> > > Jonathan Baker
> > >
> > >
> > >
> > >
> > > Raj Sekhar wrote:
> > > >
> > > > hi all,
> > > >
> > > > we have multiple finder methods, where u can have
> > > > multiple ejbObjects as the return type. And we
> > > have
> > > > remove method also in home interface, but if i
> > > want to
> > > > remove more than one bean from the container it's
> > > not
> > > > possible,since the specification did not mention
> > > > regarding that functionality.
> > > >
> > > > my question is..
> > > >
> > > > What could be the problem if they defined multiple
> > > > delete methods in the Home interface? Is that a
> > > > performance issue or any design stratagy?
> > > >
> > > > thanx in advance
> > > >
> > > > bye
> > > >
> > > > Raj
> > > >
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> > >
> > > --
> > > Jonathan Baker
> > >
> > > Senior Architect
> > > Internet Applications Division
> > > Sybase, Inc.
> > >
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> > > +1 510 922-0460
> > >
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> --
> Jonathan Baker
>
> Senior Architect
> Internet Applications Division
> Sybase, Inc.
>
> [EMAIL PROTECTED]
> +1 510 922-0460
>
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