Transaction bound cache

Hi

i've got a very simple transaction bound cache implementation. That is 
the cache gets invalidated on transaction end.

It's used like this:

class Foo(object):

   data = TransactionBoundCache('_v_store_it_here', dict)

where `dict` is the cache factory.


Shall I add this to zope.cachedescriptors?

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Christian Zagrodnick

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