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From "catalina wei" <catalina....@gmail.com>
Subject Re: XML datatypes and data caching
Date Tue, 21 Aug 2007 00:20:55 GMT
Patric,
Before commit, we have a copy of the old value in the cache.
The new value is updated in cache on commit().
So the changes only visible after commit.

Catalina


On 8/20/07, Patrick Linskey <plinskey@gmail.com> wrote:
>
> Do we make a copy of the data in the cache? I.e., if you load some
> data so it gets into cache, then change something inside the XML
> graph, but do not commit, are the changes visible?
>
> -Patrick
>
> On 8/20/07, catalina wei <catalina.wei@gmail.com> wrote:
> > Patrick,
> > Right now the persistent field mapped to XML column is cached just like
> > other persist field when DataCache is turned on.
> >
> > Do we want to change this behavior  to not caching the xml  field value?
> > I don't understand why we want to prevent the xml field from getting
> into
> > cache.
> >
> > The same testcase in openjpa-persistence-jdbc ran OK with DataCache
> turned
> > on.
> >
> > Catalina
> >
> > On 8/20/07, Patrick Linskey <plinskey@gmail.com> wrote:
> > >
> > > Great. If you could add a test case, that would be very helpful for
> > > ongoing verification.
> > >
> > > I think that initially, it is probably sufficient to just prevent
> > > these field types from getting into cache.
> > >
> > > -Patrick
> > >
> > > On 8/20/07, catalina wei <catalina.wei@gmail.com> wrote:
> > > > Hi Patrick,
> > > > I can verify this. I will post result shortly.
> > > >
> > > > Catalina
> > > > On 8/20/07, Patrick Linskey <plinskey@gmail.com> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > Have we done any testing of the interaction between XML datatypes
> and
> > > > > the data cache?
> > > > >
> > > > > -Patrick
> > > > >
> > > > > --
> > > > > Patrick Linskey
> > > > > 202 669 5907
> > > > >
> > > >
> > >
> > >
> > > --
> > > Patrick Linskey
> > > 202 669 5907
> > >
> >
>
>
> --
> Patrick Linskey
> 202 669 5907
>

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