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From "Andre Dantas Rocha" <andre.dantas.ro...@uol.com.br>
Subject RES: Possible incubation?
Date Wed, 08 Apr 2009 12:43:12 GMT
Jorg,

I don't agree with this point at all: "having a method call in a catch block
is
likely to cause problems for code analysis tools - as well as humans -
as one cannot immediately tell if the code continues or not"

I believe it is possible to know if the code continues or not, for example,
if you rethrow the exception at the end of handle() method. Reading your
message, however, I realized that it is a good idea to make handle() method
works more safely allowing it to throw original exception in case of error
inside it.

Andre

-----Mensagem original-----
De: sebb [mailto:sebbaz@gmail.com] 
Enviada em: quarta-feira, 8 de abril de 2009 07:21
Para: Commons Developers List
Assunto: Re: Possible incubation?

On 08/04/2009, Jörg Schaible <joerg.schaible@gmx.de> wrote:
> Hi Andre,
>
>  Andre Dantas Rocha wrote at Dienstag, 7. April 2009 14:38:
>
>
>  > Hi all,
>  >
>  > This message was originally sent to incubator list, but they suggest to
>  > post it here because *maybe* the idea can fit in Commons project.
>  >
>  > I'm developing a framework called Jeha. The main idea is to provide
easy
>  > exception description and handling using annotations in methods and
>  > classes
>  > and some commons handlers. I believe that the  idea is simple, but
>  > powerful.
>  >
>  > The initial code and start guide of framework are here:
>  >
>
<http://sourceforge.net/project/showfiles.php?group_id=242203&package_id=294
>  > 931&release_id=650572>
>  >
>
http://sourceforge.net/project/showfiles.php?group_id=242203&package_id=2949
>  > 31&release_id=650572
>  >
>  > I'd like to hear from community if this idea is valuable for a possible
>  > incubation.
>  >
>  > Please let me know your opinion.
>
>
> It might be only me, but I see this approach a bit critical. On one hand
>  you're right, writing exception code is quite tedious sometimes, but with
>  your solution you wipe out any useful method signature regarding
exception
>  declaration. What happens if I don't wanna handle certain exception types
>  or RuntimeException instances? I cannot simply rethrow from the handler.

I wondered about that. Also, having a method call in a catch block is
likely to cause problems for code analysis tools - as well as humans -
as one cannot immediately tell if the code continues or not.

Now, having a way to perform the same code for multiple exceptions
would sometimes be useful. Dunno whether that could be implemented.

>  - Jörg
>
>
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