[jboss-as7-dev] (XA)Datasources subresources and use cases

[Stefano Maestri]

I was forgetting:
of course parser will take care of all the steps
     parse->create ds disabled->add subresources->enable ds
making it invisible to users.

regards
S.
On 10/20/2011 01:47 PM, Stefano Maestri wrote:
> Hi all,
>
> I've recently worked on adding subresources for configuration properties
> to resource-adapters and now I'm working on datasources and xa-datasources.
> While a pure subresources approach is working out of the box for RAs,
> since add operations work only on DMR and services and runtime metadata
> information are created during rar deployment, it's not the same for
> (xa)DS. Here add operation effectively deploy the datasources, so adding
> properties as subresources comes after effective deployment.
> IOW the subresources can't be used during runtime creation of a
> datasource, but only during parsing. Having connection-properties and
> xa-datasource-properties as subresources should make easier and more
> standard to add/remove them.
>
> Since currently we are supporting datasource creation from console and
> cli and since I think it's a wanted feature I have a proposal to make it
> possible also with subresources.
>
> Basically the idea is to use the current enable/disable status to make
> possible to edit a datasource. Datasource are always created disabled
> (boolean parameter enable will be removed from add operation), and
> permit to add/remove subresource in this status. Then console/cli have
> to enable the datasource making it available and registered in jndi.
> It's not possible to edit a datasource enabled, it must be disabled
> first. Of course this approach could be extended not only to
> subresources, but also to all editable field that currently require a
> server reload.
>
> comments or problem you can see in this approach?
>
> regards
> S.
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