[squeak-dev] [ANN] Magma 1.4
Germán Arduino
garduino at gmail.com
Sat Dec 29 00:14:40 UTC 2012
Very interesting, congrats and thanks by your continued work in Magma and
Squeak!!
About your db born in 2004, how is programmed the UI? It's a desktop
morphic app or are you using some web framework?
Some screenshots?
Thanks!
2012/12/28 Chris Muller <ma.chris.m at gmail.com>
> I am pleased to announce the release of Magma 1.4 for Squeak 4.4.
> Magma is a database for Squeak that allows complex domain models to be
> developed with virtually no regard for persistence issues. Said
> models can run entirely in memory without Magma even loaded in the
> image or, by loading Magma, the size of the domain model can exceed
> the size of RAM and be simultaneously accessed and updated by multiple
> clients over a network with ACID properties. Further, by copying the
> database files to another machine on same network and starting a
> server on them, uninterrupted 24x7 service is gained automatically --
> either server can go down at any time and will be automatically sync'd
> from the other when restarted.
>
> Magma regards data-integrity as a top priority. My oldest critical
> database still running today was "born" in 2004 and has survived major
> domain refactorings, 8 years of Magma upgrades, two hard-drive crashes
> and several power-outages. By hashing the contents of every commit,
> and writing them atomically to disk (among other security measures),
> Magma is an ultra-safe place to develop and store mission-critical
> objects. Correct mcz versions of domain code can be co-located in the
> same repository as the model it runs, ensuring full application
> recoverability even in the worst circumstances.
>
> I've learned that transparent persistence is a complex problem that,
> IMO, only a mature framework can deliver in a mature way. Magma 1.4
> brings heightened levels of stability, robustness and performance over
> its predecessor. Applications just run better, faster, with better
> memory management, usability and performance. The change-log has all
> of the gory details. This, combined with the recent release of Cog
> 2640, IMO, makes Squeak+Magma a fantastic platform.
>
> PS - Even if you don't use Magma for persistence in your own
> applications, simply starting an empty database and copying all of
> your mcz's to it allows the Squeak IDE to show all "mc versions" and
> the "mc origin" of any method as options on the methods menu, very
> nice for general development.
>
>
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