[hibernate-dev] Message-Templates from multiple JARs

[Hardy Ferentschik]

Hi,

Having multiple resource bundles and some custom way of specifying these  
bundles is
related to HV-238 and HV-251.

Having a ResourceBundleLocatorStrategy should solve your problem Gunnar,  
right?

The default strategy could behave like it does now and we can provide an  
additional strategy
which allows for multiple resource bundles. You would specify the strategy  
in the hibernate
config file. The names for the different resource files could also be  
specified in the
config (or maybe there is a better way!?)

--Hardy


On Mon, 15 Feb 2010 16:51:13 -0300, Gunnar Morling  
<gunnar.morling at googlemail.com> wrote:

> I agree, there probably won't be that many 3rd-party constraint vendors  
> :-)
>
> Nevertheless I think the problem is not too exotic. In my day job for
> example we're building a large-scale enterprise application, which is  
> made
> up of multiple JARs ("components") developed by multiple, independent
> development teams.
>
> Now it would be great, if two teams could develop independently their  
> custom
> constraints, specific to their component. As of now they would have to
> provide a unified ValidationMessages.properties, violating the  
> encapsulation
> of the components.
>
> A rather simple solution might be a meta-annotation @MessageBundle, which
> optionally could be used at constraint annotation type declarations to
> specify the name of the message bundle to be used. That way name  
> collisions
> between constraints from different JARs still could occur, but finding
> unique names should not be too hard. If that meta-annotation is not  
> given, a
> fallback to ValidationMessages.properties might be used.
>
> WDYT?
>
> Cheers, Gunnar
>
>
> 2010/2/15 Emmanuel Bernard <emmanuel at hibernate.org>
>
>> Yes, you need to copy it over or more likely adapt the messages to your
>> application (in which case you don't care).
>> The problem with listing the resource bundle is that you need an order  
>> to
>> specify which has precedence over which.
>>
>> Another solution could be some sort of plugin system where 3rd party
>> constraint makers can reference automatically a resource bundle. But
>> realistically, how many 3rd party constraint makers will there be?
>>
>> The question is: is the additional complexity for the solution worth the
>> current problem?
>>
>> On 14 févr. 2010, at 22:00, Gunnar Morling wrote:
>>
>> > Hello you two,
>> >
>> > recently I thought about the following situation:
>> >
>> > * I have a JAR containing a custom constraint on the class path  
>> (could be
>> a constraint provided by some 3rd-party constraint vendor)
>> > * I have another custom constraint within the actual project itself  
>> (and
>> therefore a ValidationMessages.properties as well)
>> >
>> > Now the ValidationMessages.properties provided by the 3rd-party  
>> vendor is
>> hidden by my own ValidationMessages.properties, which - if I'm not  
>> mistaken
>> - requires me to copy the contents of the first to the latter.
>> >
>> > Is there any better solution to this problem?
>> >
>> > Maybe BV/HV should provide some means for constraint vendors to  
>> specify
>> the resource bundle containing messages? If you think, that's useful I'd
>> create a JIRA issue for that one.
>> >
>> > Thanks for any ideas,
>> >
>> > Gunnar
>>
>>