You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@commons.apache.org by Oliver Heger <he...@med.uni-marburg.de> on 2003/12/19 10:52:40 UTC
[configuration] Exception handling - was Automatic reloading
Emmanuel,
;-) thank you for putting my name in the author field of
ReloadingStrategy, but I do not deserve this honour. This is all your
design.
I have one remark and this is not specific to your code, but applies to
whole configuration: Our exception handling is very inconsistent in some
points. For instance, in the new PersistentConfiguration interface the
save() method throws an IOException and the load() method throws an
Exception. I know, this is because the underlying methods you want to
call have these throws clauses. So I would suggest to make this more
consistent.
There are some methods that have a throws Exception clause, which is
quite ugly in my opinion. Well, some of them can indeed throw a bunch of
different exception types. What could we do to improve this? How about
introducing a ConfigurationException class, which can have a nested
exception?
What do others think about this? This is a kind of cleanup, which maybe
should be done before the first release. Later it could be more
problematic because of compatibility issues.
Oli
Emmanuel Bourg schrieb:
> I have implemented the reloading strategy suggested by Oliver. I
> introduced a PersistentConfiguration interface defining the load() and
> save() methods, the ReloadableConfiguration decorator only accepts
> instances of PersistenConfiguration. Also I fixed the missing clear()
> method in the HierarchicalConfiguration class and moved the reloading
> stuff in a specific sub package.
>
> I haven't implemented all the strategies mentioned in my previous mail
> yet. I think we might make the URLChangedReloadingStrategy to work on
> configurations embedded in a jar or zip file as well, this should be
> easy to implement with the JarFile/JarEntry obtained from the URL
> through a JarURLConnection.
>
> Emmanuel Bourg
>
---------------------------------------------------------------------
To unsubscribe, e-mail: commons-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-dev-help@jakarta.apache.org