So I guess the remark in this post
http://objectstyle.org/cayenne/lists/cayenne-user/2005/10/0120.html is not
correct and I can reuse the same DataContext?
Oscar
PS: Korbinian, did you try to set the Max number of Objects in the "Cache
Configuration" instead of creating a new context?
--- Bryan Lewis <brya..aine.rr.com> wrote:
> Of course Cayenne doesn't keep using memory without limit. If you look in
> the project properties in the modeler, you'll see a section "Cache
> Configuration" where you can specify the Max. Number of Objects.
>
>
> ----- Original Message -----
> From: "Oscar Picasso" <oscgoogl..ahoo.com>
> To: <cayenne-use..bjectstyle.org>
> Sent: Saturday, November 05, 2005 3:32 PM
> Subject: Re: Cayenne, Tapestry and DataContext
>
>
> > > I am also learning Cayenne and Tapestry 4 at the moment. The application
> > > I am currently on has one DataContext in my ASO application scope class.
> >
> > What is an ASO application?
> >
> > > I am not sure what you mean by DataContext growth by retrieving from it.
> > > I guess growth can be controlled.
> >
> > Lets's say I have
> > Person
> > {
> > Person mam;
> > Person dad;
> > List<Person> children;
> > }
> >
> > // Actually execute some query with the data context.
> > Person albert = dao.findByName("Albert")
> >
> > At this point, my understanding is that albert.children are not in memory.
> > Then if i do something like:
> >
> > for(Person child: children)
> > {
> > do somthing with child;
> > }
> >
> > The children are loaded in memory, if I keep looking for the children of
> the
> > children and so on, each time more persons are loaded in memory.
> >
> > Am I right?
> >
> > If that the case, for some big potential graphs, at some point you end up
> with
> > thousands or millions of Objects/Persons in memory if you use the same
> > DataContext.
> >
> > I don't know how Cayenne deals with this situation. Does it discard the
> least
> > recently used Objects, does it perform some kind of caching, or do we need
> to
> > keep track of the Object creation to avoid a potential
> OutOfMemoryException.
> >
> > Oscar
> >
> >
> >
> >
> > __________________________________
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>
>
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