f165e4b1e8
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2782 fd906abe-77d9-0310-91a1-e0d9ade77398
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
#
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# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Predicate management.
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$Id$
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"""
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from zope import component, schema
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from zope.component import adapts
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from zope.interface import implements
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from zope.cachedescriptors.property import Lazy
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from zope.dottedname.resolve import resolve
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from zope.security.proxy import removeSecurityProxy
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from zope.traversing.api import getName
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from loops.interfaces import ILoopsObject, IConcept, IResource
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from loops.interfaces import IPredicate
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from loops.concept import Concept
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from loops.common import AdapterBase
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from loops.type import TypeInterfaceSourceList
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TypeInterfaceSourceList.typeInterfaces += (IPredicate,)
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class Predicate(AdapterBase):
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""" typeInterface adapter for concepts of type 'predicate'.
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"""
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implements(IPredicate)
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_contextAttributes = list(IPredicate) + list(IConcept)
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class PredicateInterfaceSourceList(TypeInterfaceSourceList):
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""" Collects type interfaces for predicates, i.e. interfaces that
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may be used for specifying additional attributes of relations.
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"""
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typeInterfaces = ()
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