[Zope3-checkins] CVS: Zope3/src/zope/app/interface - __init__.py:1.1 interfaces.py:1.1 type.py:1.1

[Stephan Richter]

Update of /cvs-repository/Zope3/src/zope/app/interface
In directory cvs.zope.org:/tmp/cvs-serv17434/src/zope/app/interface

Added Files:
	__init__.py interfaces.py type.py 
Log Message:


Moved the persistent interface and type registry code to zope.app.interface.


=== Added File Zope3/src/zope/app/interface/__init__.py ===
##############################################################################
#
# Copyright (c) 2003 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.
#
##############################################################################
"""Code about interfaces.

This module contains code for interfaces in persistent modules.

$Id: __init__.py,v 1.1 2004/03/11 11:03:37 srichter Exp $
"""
from persistent import Persistent
from persistent.dict import PersistentDict
from zodbcode.patch import registerWrapper, Wrapper
from zope.interface.interface import InterfaceClass
from zope.interface import Interface

class PersistentInterfaceClass(Persistent, InterfaceClass):

    def __init__(self, *args, **kw):
        Persistent.__init__(self)
        InterfaceClass.__init__(self, *args, **kw)

        self.dependents = PersistentDict()

# PersistentInterface is equivalent to the zope.interface.Interface object
# except that it is also persistent.  It is used in conjunction with
# zodb.code to support interfaces in persistent modules.
PersistentInterface = PersistentInterfaceClass("PersistentInterface",
                                               (Interface, ))

class PersistentInterfaceWrapper(Wrapper):

    def unwrap(self):
        return PersistentInterfaceClass(self._obj.__name__)


def getInterfaceStateForPersistentInterfaceCreation(iface):
    # Need to convert the dependents weakref dict to a persistent dict
    dict = iface.__dict__.copy()
    dependents = PersistentDict()
    for k, v in dict['dependents'].iteritems():
        dependents[k] = v
    dict['dependents'] = dependents
    return dict

registerWrapper(InterfaceClass, PersistentInterfaceWrapper,
                lambda iface: (),
                getInterfaceStateForPersistentInterfaceCreation,
                )


=== Added File Zope3/src/zope/app/interface/interfaces.py ===
##############################################################################
#
# Copyright (c) 2003 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.
#
##############################################################################
"""Interfaces related to the local interface service.

$Id: interfaces.py,v 1.1 2004/03/11 11:03:37 srichter Exp $
"""
from zope.interface import Interface

class IInterfaceBasedRegistry(Interface):
    """Registries that use interfaces."""

    def getRegistrationsForInterface(iface):
        """Return registrations related to iface.

        The Return value is iterable of IRegistration object.
        """


=== Added File Zope3/src/zope/app/interface/type.py ===
##############################################################################
# Copyright (c) 2003 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.
##############################################################################
"""Persistent type registry

$Id: type.py,v 1.1 2004/03/11 11:03:37 srichter Exp $
"""
from persistent import Persistent
from persistent.dict import PersistentDict
from zope.interface.type import TypeRegistry

class PersistentTypeRegistry(Persistent, TypeRegistry):

    def __init__(self):
        super(PersistentTypeRegistry, self).__init__(PersistentDict())