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##############################################################################
#
# Copyright (c) 2004 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Persistent component managers
"""
from persistent import Persistent
from persistent.mapping import PersistentMapping
from persistent.list import PersistentList
from zope.interface.adapter import VerifyingAdapterRegistry
from zope.interface.registry import Components
class PersistentAdapterRegistry(VerifyingAdapterRegistry, Persistent):
def changed(self, originally_changed):
if originally_changed is self:
self._p_changed = True
super(PersistentAdapterRegistry, self).changed(originally_changed)
def __getstate__(self):
state = super(PersistentAdapterRegistry, self).__getstate__().copy()
for name in self._delegated:
state.pop(name, 0)
state.pop('ro', None)
return state
def __setstate__(self, state):
bases = state.pop('__bases__', ())
super(PersistentAdapterRegistry, self).__setstate__(state)
self._createLookup()
self.__bases__ = bases
self._v_lookup.changed(self)
class PersistentComponents(Components):
def _init_registries(self):
self.adapters = PersistentAdapterRegistry()
self.utilities = PersistentAdapterRegistry()
def _init_registrations(self):
self._utility_registrations = PersistentMapping()
self._adapter_registrations = PersistentMapping()
self._subscription_registrations = PersistentList()
self._handler_registrations = PersistentList()