[Zope3-checkins] CVS: Zope3/lib/python/Zope/App/Caching - AnnotationCacheable.py:1.1 configure.zcml:1.1

[Marius Gedminas]

Update of /cvs-repository/Zope3/lib/python/Zope/App/Caching
In directory cvs.zope.org:/tmp/cvs-serv25126

Added Files:
	AnnotationCacheable.py configure.zcml 
Log Message:
Adapter for IAnnotatable providing ICacheable

=== Added File Zope3/lib/python/Zope/App/Caching/AnnotationCacheable.py ===
##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# All Rights Reserved.
# 
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
# 
##############################################################################
"""An adapter of annotatable objects."""

from Zope.ComponentArchitecture import getAdapter
from Zope.App.OFS.Annotation.IAnnotations import IAnnotations
from Zope.App.Caching.ICacheable import ICacheable

annotation_key = 'Zope.App.Caching.CacheManager'

class AnnotationCacheable:
    """Stores cache information in object's annotations."""

    __implements__ = ICacheable

    def __init__(self, context):
        self._context = context

    def getCacheId(self):
        """See Zope.App.Caching.ICacheable"""
        annotations = getAdapter(self._context, IAnnotations)
        return annotations.get(annotation_key, None)

    def setCacheId(self, id):
        """See Zope.App.Caching.ICacheable"""
        annotations = getAdapter(self._context, IAnnotations)
        annotations[annotation_key] = id


=== Added File Zope3/lib/python/Zope/App/Caching/configure.zcml ===
<zopeConfigure
   xmlns='http://namespaces.zope.org/zope'
   xmlns:browser='http://namespaces.zope.org/browser'
   package="Zope.App.Caching"
>

  <adapter factory=".Caching.AnnotationCacheable."
           provides=".ICacheable."
           for="Zope.App.OFS.Annotation.IAnnotatable." />

</zopeConfigure>