In theory a multi-object finder can throw an exception, at least when
using BMP. This is possible for instance when a multi-object finder
calls a single-object finder. I am not sure if it would be a good
programming practise to let this FinderException to go unchecked to a
caller though.
--
Joni
[EMAIL PROTECTED]
Eddie wrote:
>
> I understand your point and I completely agree that it's illogical. That's
> why I started testing around and found out that it's not necessary to throw
> a finderexception in case of a "return collection".
> Like I see it now: I finderException is never thrown in case of a collection
> as it always returns an empty collection when it can't find anything ? Or am
> I missing something here.
>
> Neither does Orion complain when you leave out the FinderException!
> Or are there other situations when a FinderExceptions can occur in case of a
> Collection ??
>
> Eddie
>
> ----- Original Message -----
> From: Joni Suominen <[EMAIL PROTECTED]>
> To: Orion-Interest <[EMAIL PROTECTED]>
> Sent: Monday, May 21, 2001 6:41 PM
> Subject: Re: finderException in home interface of CMP ??
>
> > Joni Suominen wrote:
> > >
> > > Eddie wrote:
> > > >
> > > > To me it's a bit unclear when I need to throw a FinderException in the
> > > > finder methods in the Home interface with CMP. ?
> > > > Now I only throw a finderException in case of
> > > > - the findByPrimareyKey (otherwise orion complaints),
> > > > - and in case of a single return object (orion doesn't complain, but
> gives
> > > > "strange" runtime errors).
> > > >
> > > > So when a finder returns a collection I don't throw a
> finderException!! Is
> > > > this correct ?
> > >
> > > No. Every finder method should declare that it throws FinderException.
> > >
> > > Joni
> > > [EMAIL PROTECTED]
> >
> > To be more specific:
> > In the home interface you should declare all the fonder methods to throw
> > FinderException. But when a method which returns a non-collection raises
> > an exception it will be ObjectNotFoundException (which is a subclass of
> > FinderException). However, if a finder method which returns a collection
> > don't find any matching objects an empty collection is returned. The
> > method signature must still declare the FinderException in home
> > interface which seems to be a bit illogical?
> >
> > Joni
> > [EMAIL PROTECTED]
> >
> >
