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

[Tom Ware <tom.ware@xxxxxxxxxx>]

The list of properties can be specified either when the EMF is injected, or when 
it is created (via Persistence.createEntityManagerFactory()).

If no value is specified for a particular property, we will check the System 
properties to get that property.

-Tom

On 05/12/2011 4:11 AM, Nathan Drew wrote:
> Specified by JVM properties?
>
> Kind Regards
> Nathan
>
>
> -----Original Message-----
> From: eclipselink-users-bounces@xxxxxxxxxxx
> [mailto:eclipselink-users-bounces@xxxxxxxxxxx] On Behalf Of Tom Ware
> Sent: 02 December 2011 18:03
> To: eclipselink-users@xxxxxxxxxxx
> Subject: Re: [eclipselink-users] JVM properties vs persistence.xml
>
> 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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> >      eclipselink-users@xxxxxxxxxxx
> <mailto:eclipselink-users@xxxxxxxxxxx>
> >      https://dev.eclipse.org/mailman/listinfo/eclipselink-users
> >
> >
> >
> >
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