##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (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
#
##############################################################################
"""Python implementation of persistent list.
$Id: PersistentList.py,v 1.3 2002/08/14 22:07:09 mj Exp $"""
__version__='$Revision: 1.3 $'[11:-2]
import Persistence
from UserList import UserList
class PersistentList(UserList, Persistence.Persistent):
__super_setitem = UserList.__setitem__
__super_delitem = UserList.__delitem__
__super_setslice = UserList.__setslice__
__super_delslice = UserList.__delslice__
__super_iadd = UserList.__iadd__
__super_imul = UserList.__imul__
__super_append = UserList.append
__super_insert = UserList.insert
__super_pop = UserList.pop
__super_remove = UserList.remove
__super_reverse = UserList.reverse
__super_sort = UserList.sort
__super_extend = UserList.extend
def __setitem__(self, i, item):
self.__super_setitem(i, item)
self._p_changed = 1
def __delitem__(self, i):
self.__super_delitem(i)
self._p_changed = 1
def __setslice__(self, i, j, other):
self.__super_setslice(i, j, other)
self._p_changed = 1
def __delslice__(self, i, j):
self.__super_delslice(i, j)
self._p_changed = 1
def __iadd__(self, other):
self.__super_iadd(other)
self._p_changed = 1
def __imul__(self, n):
self.__super_imul(n)
self._p_changed = 1
def append(self, item):
self.__super_append(item)
self._p_changed = 1
def insert(self, i, item):
self.__super_insert(i, item)
self._p_changed = 1
def pop(self, i=-1):
rtn = self.__super_pop(i)
self._p_changed = 1
return rtn
def remove(self, item):
self.__super_remove(item)
self._p_changed = 1
def reverse(self):
self.__super_reverse()
self._p_changed = 1
def sort(self, *args):
self.__super_sort(*args)
self._p_changed = 1
def extend(self, other):
self.__super_extend(other)
self._p_changed = 1
# This works around a bug in Python 2.1.x (up to 2.1.2 at least) where the
# __cmp__ bogusly raises a RuntimeError, and because this is an extension
# class, none of the rich comparison stuff works anyway.
def __cmp__(self, other):
return cmp(self.data, self._UserList__cast(other))
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