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Methods/attrs that must/may be redefined in a QueryDM subclass
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Methods
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_ghost
_load
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_ghost
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_ghost ( oid, state=None )
Return a ghost of appropriate class, based on oid and state
Note that state should be loaded into the returned object via its
__setstate__() method. If state is None, the returned object's
_p_deactivate() method will be called instead (by __getitem__).
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_load
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_load ( oid, ob )
Load & return the state for oid, suitable for __setstate__()
Raise storage.InvalidKeyError if oid is not found in the db.
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