bc05aad5a4
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@537 fd906abe-77d9-0310-91a1-e0d9ade77398
47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
#
|
|
# Copyright (c) 2004 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
relation classes implementation.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from BTrees.OOBTree import OOSet
|
|
from zope.interface import implements
|
|
from zope.app import zapi
|
|
|
|
from interfaces import IRelation, IRelations
|
|
|
|
|
|
class Relation(object):
|
|
|
|
implements(IRelation)
|
|
|
|
def __init__(self, source, target):
|
|
self._source = source
|
|
self._target = target
|
|
|
|
|
|
class Relations(OOSet):
|
|
|
|
implements(IRelations)
|
|
|
|
def add(self, relation, **kw):
|
|
self.insert(relation)
|
|
|