loops/relations.py
helmutm a659d8c7de Added loops top-level container, managers, resources...
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@814 fd906abe-77d9-0310-91a1-e0d9ade77398
2005-12-03 17:05:41 +00:00

44 lines
1.2 KiB
Python

#
# Copyright (c) 2005 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
#
"""
Definition of relation classes.
$Id$
"""
from zope.app import zapi
from zope.interface import implements
from cybertools.relation import DyadicRelation
class ConceptRelation(DyadicRelation):
""" A relation between concept objects.
"""
class ResourceRelation(DyadicRelation):
""" A relation between concept and resource objects.
"""
class ViewRelation(DyadicRelation):
""" A relation between view and concept objects.
"""