On Jan 6, 2007, at 3:16 PM, Frank Condello wrote:
On 6-Jan-07, at 9:55 AM, Theodore H. Smith wrote:
To be honest, I can't remember another situation except for trees
where I actually needed weak refs. Well maybe a double-linked
list... but my tree is essentially a double linked list with a bit
ontop.
A self-cleaning file cache is another a useful case.
Managers for persistent objects -- you don't want two copies of the
same object in existence, but you also don't want to eventually hold
an entire table in RAM. I use this quite a bit.
Charles Yeomans
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