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plone3  3.1.7
predicate.py
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00001 # Marshall: A framework for pluggable marshalling policies
00002 # Copyright (C) 2004-2006 Enfold Systems, LLC
00003 #
00004 # This program is free software; you can redistribute it and/or modify
00005 # it under the terms of the GNU General Public License as published by
00006 # the Free Software Foundation; either version 2 of the License, or
00007 # (at your option) any later version.
00008 #
00009 # This program is distributed in the hope that it will be useful,
00010 # but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 # GNU General Public License for more details.
00013 #
00014 # You should have received a copy of the GNU General Public License
00015 # along with this program; if not, write to the Free Software
00016 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017 #
00018 """
00019 Interfaces for Predicate
00020 
00021 $Id: predicate.py 5626 2006-01-24 02:26:47Z dreamcatcher $
00022 """
00023 
00024 from Interface import Interface
00025 
00026 class IPredicate(Interface):
00027     """ A Predicate """
00028 
00029     def apply(obj, **kw):
00030         """Return a sequence of component names
00031         if the predicate applies.
00032         """
00033 
00034     def getComponentName():
00035         """ Return the component name configured for
00036         this predicate.
00037         """
00038 
00039     def setComponentName(component_name):
00040         """ Change the component name """
00041 
00042     def setExpression(expression):
00043         """ Change the expression condition """
00044 
00045     def expression(context):
00046         """ Evaluate the expression using context """
00047 
00048     def getExpression():
00049         """ Get the expression as text """