Re: [eclipselink-users] JVM properties vs persistence.xml

[Tom Ware <tom.ware@xxxxxxxxxx>]

The EntityManagerFactory creation methods both in APPLICATION managed and JTA 
modes take a list of properties.  That list can be used to override any of the 
properties defined in persistence.xml.

-Tom

On 02/12/2011 12:48 PM, Mark Robinson wrote:
> Could you use a deployment descriptor file to change the value in
> persistence.xml without having to rebuild?
>
> Mark
>
> On Fri, Dec 2, 2011 at 9:25 AM, Nathan Drew <Nathan.Drew@xxxxxxxxxxxxxxxxxxxxx
> <mailto:Nathan.Drew@xxxxxxxxxxxxxxxxxxxxx>> wrote:
>
>     Hi,____
>
>     __ __
>
>     Having gone through the process of needing to vary the logging levels for
>     EclipseLink, and thinking of the case when we might have to support a
>     customer using our application and want to get more debug information from
>     them without rebuilding our application from scratch… shouldn’t the JVM
>     property for eclipselink.logging.level override the value set in
>     persistence.xml?____
>
>     __ __
>
>     That’s the general model in most JEE things - configure in the app, then
>     allow the "deployer" to override values.____
>
>     __ __
>
>     Was this the case for Toplink Essentials?____
>
>     __ __
>
>     Kind Regards____
>
>     Nathan____
>
>     __ __
>
>
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