Here is a proposal for approaching this problem. Currently the only
problem with depending on foreign uses of OIDs is migration. There
is an interface of sorts already, although I'm sure it could be
improved or cleaned up with a little bit of work. If future features
(i.e. online GC) add
Ian Eslick wrote:
A few clarifications:
It is poor coding practice to use system-assigned OIDs. In future
versions of elephant OIDs may change over time due to GC, auto
recovery of oid space, etc. It's sort of like using the physical
address of an object in a C++ program. There is a legiti
On Mon, 2007-05-28 at 09:54, Ian Eslick wrote:
> On May 28, 2007, at 9:26 AM, Joubert Nel wrote:
> > My impression until I saw how persistent objects behave was that
> > everything you want to store via Elephant had to be "rooted".
>
> Did you read through the tutorial in the new manual? I thou
On May 28, 2007, at 9:26 AM, Joubert Nel wrote:
On Mon, 2007-05-28 at 08:51, Ian Eslick wrote:
A few clarifications:
Standard persistent classes are not saved by default. To get access
Ian, when are objects that are instanced from persistent classes
saved?
I simply call (make-instance)
On Mon, 2007-05-28 at 08:51, Ian Eslick wrote:
> A few clarifications:
>
> Standard persistent classes are not saved by default. To get access
Ian, when are objects that are instanced from persistent classes saved?
I simply call (make-instance) on the following class definition:
(defclass ri
A few clarifications:
Standard persistent classes are not saved by default. To get access
to a class via the map-class operator the class or a slot of the
class must be declared as :indexed. If a slot is indexed, then that
value can be used as a key for the object via the get-instances-by
On Monday 28 May 2007 07:36, Joubert Nel wrote:
> On Sun, 2007-05-27 at 23:46, Robert L. Read wrote:
> > On Sun, 2007-05-27 at 16:23 -0400, Joubert Nel wrote:
> On another note:
> In my experimentation I added several objects to the root, all with the
> same key.
> All these objects get added but
On Sun, 2007-05-27 at 23:46, Robert L. Read wrote:
> On Sun, 2007-05-27 at 16:23 -0400, Joubert Nel wrote:
> > My question is:
> > Currently I'm using the OID of the object as its key when I
> > (add-to-root) because this is the only slot in my class that is
> > guaranteed to be unique. (from a
On Sun, 2007-05-27 at 16:23 -0400, Joubert Nel wrote:
> Hi -
>
> I have a persistent class (i.e. :metaclass persistent-metaclass) defined
> and am adding a whole bunch of objects that are instances of this class
> to the root of my Elephant store.
>
> In order to retrieve a list of them I do:
>
Hi -
I have a persistent class (i.e. :metaclass persistent-metaclass) defined
and am adding a whole bunch of objects that are instances of this class
to the root of my Elephant store.
In order to retrieve a list of them I do:
(map-class fn 'my-class-name)
My question is:
Currently I'm us
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