#
#  Copyright (c) 2007 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
#

"""
Utilities for managing version informations.

$Id$
"""

from zope.interface import implements

from loops.versioning.interfaces import IVersionInfo


class VersionInfo(object):
    """ Collects and provides informations related to object versions.
    """

    implements(IVersionInfo)


def getVersionInfo(obj, request):
    """ Check if a special version should be used for the object
        provided.

        In addition return meta information about the object versions
        so that this will not have to be retrieved later.
    """
    return obj, VersionInfo()