Re: External references.

[Falko Braeutigam <falko@softwarebuero.de>]

Pedro Pastor Seva wrote:
> 
> Tim Brown wrote:
> >
> > Falko Braeutigam wrote:
> >
> > > Tim Brown wrote:
> > > >
> > > > I was wondering how to delete all objects in a database without
> > > > knowing what is in there.  Is this possible?
> > > >
> > > > It would also be nice to be able to list them out.
> > > Currently you cannot browse the database if you do not know the
> > > named
> > > root objects and the structure of the classes. So it is also not
> > > possible to delete all objects without knowing these things.
> > >
> > > However, it is possible to develop such an ad-hoc browsing tool
> > > because
> > > the structure of the database classes can be retrieved via Java
> > > reflection. But currently I do not know if such a tool is really
> > > needed.
> > > Because it would only be able to _show_ the object structure of the
> > > database. What do you think?
> > >
> >
> 
> I would like to know if it's possible in ozone to build several
> databases with external refences objects from one to each other (in a
> direct an simple way, I mean, being able to navigate from one to another
> in a transparent way).
Currently ozone "database" means a running server (node) and all object in
it. All the objects in a database can be connected. It is also possible to
have proxy objects as attributes of an object stored in database A linking
to an object stored in database B. But in this case a transaction would be
split up into two sub-transaction! Because of this we plan to develop
multi-node features to have distributed databases, transactions and
commits.

Falko
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______________________________________________________________________
Falko Braeutigam                         mailto:falko@softwarebuero.de
softwarebuero m&b                          http://www.softwarebuero.de