[ZODB-Dev] ZODB memory problems (was: processing a Very Large file)

[Christian Theune]

Am Samstag, den 21.05.2005, 17:38 +0200 schrieb Christian Heimes:
> Grab the Zope2 sources and read lib/python/OFS/Image.py. Zope's 
> OFS.Image.Image class (and also Zope3's implementation) is using a so 
> called possible large data class (Pdata) that is a subclass of Persistent.
> 
> Pdata is using a simple and genious approach to minimize the memory 
> usage when storing large binary data in ZODB. The data is read from a 
> [...]

Actually Pdata has some drawbacks. When the blobsupport branch gets
declared stable (I think it's not gonna happen in 3.4, but nobody told
me otherwise) we'll have really good blob support without this black
magic.

Cheers,
Christian

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