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  • Committer: Robert Collins
  • Date: 2005-10-11 01:05:24 UTC
  • mto: This revision was merged to the branch mainline in revision 1438.
  • Revision ID: robertc@robertcollins.net-20051011010524-e258bc8d051cc9d2
add a cache bound to Transactions, and a precious facility, so that we keep inventory.weave in memory, but can discard weaves for other such files.

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bzrlib/identitymap.py
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        if self._weave_key(id) in self._map:
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            raise errors.BzrError('weave %s already in the identity map' % id)
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        self._map[self._weave_key(id)] = weave
 
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        self._reverse_map[weave] = self._weave_key(id)
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    def find_weave(self, id):
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        """Return the weave for 'id', or None if it is not present."""
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    def __init__(self):
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        super(IdentityMap, self).__init__()
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        self._map = {}
 
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        self._reverse_map = {}
 
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    def remove_object(self, an_object):
 
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        """Remove object from map if it is present."""
 
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        if an_object in self._reverse_map:
 
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            self._map.pop(self._reverse_map[an_object])
 
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            self._reverse_map.pop(an_object)
 
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    def _weave_key(self, id):
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        """Return the key for a weaves id."""