Jim Fulton wrote at 2006-10-9 13:22 -0400: > ... >Hm, I don't why the use cases imply setting it only at the class >level, but OK. I'll just take that as a given. So, since _p_sticky >is set at the class level, why store it on the instances?
Use case 2, set on class level; use case 3, set on instance level. To make cache garbage collection as fast as possible, I have proposed to actually store the sticky information in the C object structure. In the garbage collection loop, this gives an "if (...obj->p_sticky...)" instead of isSticky = PyObject_GetAttr(obj, _p_sticky_name) if (...isSticky...) {....} Py_XDECREF(isSticky) This part of the proposal (storing "_p_sticky" in the the C header of persistent objects) is not essentail. -- Dieter _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev