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Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
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Thx for your information.
Despite my next question may look dummy i ask you why this enhanced performatice option is not set as default to eclipse link ?
There are some drawbacks on this ?
--- On Wed, 1/7/09, Tom Ware <tom.ware@xxxxxxxxxx> wrote:
> From: Tom Ware <tom.ware@xxxxxxxxxx>
> Subject: Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
> To: "EclipseLink User Discussions" <eclipselink-users@xxxxxxxxxxx>
> Date: Wednesday, January 7, 2009, 4:26 PM
> Why not? The classes are weaved when they are loaded. As
> far as the java VM is concerned the classes are the same for
> the life of the app.
>
> -Tom
>
> Philipp Kursawe wrote:
> > On Wed, 07 Jan 2009 14:36:52 +0100, Tom Ware
> <tom.ware@xxxxxxxxxx> wrote:
> >
> >> Dynamic weaving is used for several performance
> enhancing features in EclipseLink. (e.g. lazy loading of
> ToOne relationships, fetch groups, optimized change
> tracking, optimized cache lookups)
> >>
> >> When enabled, it provides all these features
> transparently and hence boosts the performance of your
> application.
> >
> > Unfortunatly it also changes the identity of objects.
> You cannot do a instanceof anymore with weave'd objects.
> >
> > _______________________________________________
> > eclipselink-users mailing list
> > eclipselink-users@xxxxxxxxxxx
> >
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