8660f12f5e
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2422 fd906abe-77d9-0310-91a1-e0d9ade77398
60 lines
2 KiB
Python
60 lines
2 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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Constraint definitions for restricting concepts and predicates available
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for assignment as children or as concepts to resources.
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$Id$
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"""
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from zope.cachedescriptors.property import Lazy
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from zope.interface import implements
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from zope.traversing.api import getName
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from loops.common import AdapterBase, adapterAttributes, contextAttributes
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from loops.constraint.interfaces import IStaticConstraint
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from loops.type import TypeInterfaceSourceList
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TypeInterfaceSourceList.typeInterfaces += (IStaticConstraint,)
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isPredicate = 'ispredicateforconstraint'
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isType = 'istypeforconstraint'
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hasConstraint = 'hasconstraint'
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hasChildConstraint = 'haschildconstraint'
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class StaticConstraint(AdapterBase):
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_contextAttributes = contextAttributes(AdapterBase, 'relationType', 'cardinality')
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_adapterAttributes = adapterAttributes(AdapterBase, 'predicates', 'types')
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implements(IStaticConstraint)
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def getPredicates(self):
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return self.context.getChildren([isPredicate])
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def setPredicates(self, value):
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self.context.setChildren(isPredicate, value)
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predicates = property(getPredicates, setPredicates)
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def getTypes(self):
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return self.context.getChildren([isType])
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def setTypes(self, value):
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self.context.setChildren(isType, value)
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types = property(getTypes, setTypes)
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