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class ResettingJar(object):
"""Testing stub for _p_jar attribute.
"""
def __init__(self):
from persistent import PickleCache # XXX stub it!
from persistent.interfaces import IPersistentDataManager
from zope.interface import directlyProvides
self.cache = self._cache = PickleCache(self)
self.oid = 1
self.registered = {}
directlyProvides(self, IPersistentDataManager)
def add(self, obj):
import struct
obj._p_oid = struct.pack(">Q", self.oid)
self.oid += 1
obj._p_jar = self
self.cache[obj._p_oid] = obj
def close(self):
pass
# the following methods must be implemented to be a jar
def setklassstate(self):
# I don't know what this method does, but the pickle cache
# constructor calls it.
pass
def register(self, obj):
self.registered[obj] = 1
def setstate(self, obj):
# Trivial setstate() implementation that just re-initializes
# the object. This isn't what setstate() is supposed to do,
# but it suffices for the tests.
obj.__class__.__init__(obj)
class RememberingJar(object):
"""Testing stub for _p_jar attribute.
"""
def __init__(self):
from persistent import PickleCache # XXX stub it!
self.cache = PickleCache(self)
self.oid = 1
self.registered = {}
def add(self, obj):
import struct
obj._p_oid = struct.pack(">Q", self.oid)
self.oid += 1
obj._p_jar = self
self.cache[obj._p_oid] = obj
# Remember object's state for later.
self.obj = obj
self.remembered = obj.__getstate__()
def close(self):
pass
def fake_commit(self):
self.remembered = self.obj.__getstate__()
self.obj._p_changed = 0
# the following methods must be implemented to be a jar
def setklassstate(self):
# I don't know what this method does, but the pickle cache
# constructor calls it.
pass
def register(self, obj):
self.registered[obj] = 1
def setstate(self, obj):
# Trivial setstate() implementation that resets the object's
# state as of the time it was added to the jar.
# This isn't what setstate() is supposed to do,
# but it suffices for the tests.
obj.__setstate__(self.remembered)
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