[ZODB-Dev] Feature Request 2381 : Persistent object iterator in Storage

[JohnD.Heintz]

Hello all,

Just wanted to share with everyone a feature request I've just logged. =20
Please provide any feedback/criticism.

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In order to support bulk database conversion scripts we need to be able t=
o=20
iterate over all the objects in a given Storage.

Please provide some useful way to do this that is defined in BaseStorage.=
py.

Either of two solutions would be fine:
1) Define a callback interface to iterate internally:
class BaseStorage:
  def callbackWithPids(self, processPidFunc):
    ...
this could be optimized per-Storage to only call with valid Pids.

2) Provide a max Pid lookup function to allow external iteration.
class BaseStorage:
  def getMaxPid(self):
    return self._oid
Then client code could iterate independently.

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John D. Heintz | Senior Engineer

1016 La Posada Dr. | Suite 240 | Austin TX 78752
T 512.633.1198 | jheintz@isogen.com

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