[Zope-dev] difference between OOSet and OOTreeSet?

[Chris Withers]

Hi All,

Wondering if someone could tell me the difference between an OOSet and 
an OOTreeSet?

They seem to have different interfaces and yet seem to be used in 
similar circumstances in PluginIndexes/common/UnIndex.py...

I'm looking for a set-like data structure which will likely get pretty 
large over time and so I don't want the whole data structure written to 
disk each time I add a new item to the set.

What should I be using?

cheers,

Chris

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