[javaee-spec users] Re: DataSourceDefinition

From: arjan tijms <>
Date: Tue, 2 Sep 2014 23:50:10 +0200

Yes, so "alt-dd' is a kind of version 0.5 IMHO of what the configuration
spec should be about. To be really useable it should be much more dynamic
and flexible.

I wonder how many people have actually used the "alt-dd" feature in
practice and what their experiences are with it.

On Tue, Sep 2, 2014 at 11:07 PM, Bill Shannon <>

> Note that the "alt-dd" feature provides much of this, although certainly
> it could be improved. When you deploy an application you can provide an
> alternative deployment descriptor to be used in place of the deployment
> descriptor in the application. This gives you some ability to specify
> environment-specific per-deployment configuration information.
> arjan tijms wrote on 08/27/14 05:36:
> On Wed, Aug 27, 2014 at 1:09 PM, Romain Manni-Bucau <
>> wrote:
>> I wouldn't go this way without config jsr otherwise we'll add another
>> layer which will conflict with some other jsr. The making it more
>> standard should be easier and can even be part of config jsr 1.1 I
>> guess.
> I've discussed this option off list with various stakeholders of the
> config JSR and this indeed seems to be one of the wishes;
> Use the exact syntax that's already available for the in-archive
> descriptors, and provide that externally. It doesn't even have to be
> specifically about data sources. Just have the ability to add (and
> optionally override and perhaps even subtract) any descriptor fragment, and
> the ability to define data source externally comes automatically.