difference between MaDictionary and MagmaDictionary

[Facundo Vozzi]

On Tue, Dec 14, 2010 at 9:29 AM, Esteban Lorenzano <estebanlm at gmail.com>wrote:

> mmm...
> AFAIU the objective of using magma collections is to avoid the read/write
> of big collections.... and I have this structure:
>
> MaDictionary
>        key -> MagmaCollection (big)
>        key -> MagmaCollection (big)
>        key -> MagmaCollection (big)
>
> If I replace MaDictionary with Dictionary, I will be reading/writing the
> full dictionary each time I add an element to the dictionary... isn't?
>

I think that you need replace MaDictionary with MagmaPreallocatedDictionary
not with standard Dictionary.


>
> btw... I'm using an unique MagmaSession to connect to repository (no real
> need of other... no more than 3 users connected at the same time)... and the
> real reason I'm asking this is because my application continues crashing
> each one or two days, and I can't figure out what's happening :(
>

Do you think that MaDicitonary is causing your crash ?


> So, any "best practice" I can use would be really welcome (I'm a little bit
> lost here... I'm new to magma in production, used just for toy project
> before this :( )
>

I'm using a session peer user, my root is my singleton (ReportSystem unique
instance) and I don't have MaDictionary. I'm using
MagmaPreallocatedDictionary and MagmaCollection with standard
OrderedCollection for many small objects collections on my model.
We're testing with no more than 3 concurrent users (for now) but I didn't
have any crash so far.


> Cheers,
> Esteban
>

See you,
Facu

>
> El 14/12/2010, a las 6:12a.m., Igor Stasenko escribió:
>
> > On 14 December 2010 01:40, Esteban Lorenzano <estebanlm at gmail.com>
> wrote:
> >> Hi,
> >> I wonder what's the difference between MaDictionary and
> MagmaDictionary... and which should I use... is indistinct?
> >>
> >
> > I think you better do not use these dicts. They are mainly for
> > internal use only.
> > They are optimized for speed not for space. And taking part in keeping
> > correspondence between
> > objects stored in database and their ids.
> >
> >> Cheers,
> >> Esteban_______________________________________________
> >> Magma mailing list
> >> Magma at lists.squeakfoundation.org
> >> http://lists.squeakfoundation.org/mailman/listinfo/magma
> >>
> >
> >
> >
> > --
> > Best regards,
> > Igor Stasenko AKA sig.
>
> _______________________________________________
> Magma mailing list
> Magma at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/mailman/listinfo/magma
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.squeakfoundation.org/pipermail/magma/attachments/20101214/fd5a7ace/attachment.htm