[Zodb-checkins] CVS: Zope3/lib/python/Persistence - Persistent.py:1.1.2.1 PersistentMapping.py:1.1.2.1 __init__.py:1.1.40.1

[Jim Fulton]

Update of /cvs-repository/Zope3/lib/python/Persistence
In directory cvs.zope.org:/tmp/cvs-serv12041

Modified Files:
      Tag: Zope-3x-branch
	__init__.py 
Added Files:
      Tag: Zope-3x-branch
	Persistent.py PersistentMapping.py 
Log Message:
minimally stubbed in Persistence so we can subclass Persistent

=== Added File Zope3/lib/python/Persistence/Persistent.py ===

class Persistent(object):
    pass


=== Added File Zope3/lib/python/Persistence/PersistentMapping.py ===
##############################################################################
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__doc__='''Python implementation of persistent base types


$Id: PersistentMapping.py,v 1.1.2.1 2001/11/20 18:41:56 jim Exp $'''
__version__='$Revision: 1.1.2.1 $'[11:-2]

import Persistence
import types

_marker=[]
class PersistentMapping(Persistence.Persistent):
    """A persistent wrapper for mapping objects.

    This class allows wrapping of mapping objects so that
    object changes are registered.  As a side effect,
    mapping objects may be subclassed.
    """

    def __init__(self,container=None):
        if container is None: container={}
        self._container=container

    def __delitem__(self, key):
        del self._container[key]
        try: del self._v_keys
        except: pass
        self.__changed__(1)

    def __getitem__(self, key):
        return self._container[key]

    def __len__(self):     return len(self._container)

    def __setitem__(self, key, v):
        self._container[key]=v
        try: del self._v_keys
        except: pass
        self.__changed__(1)

    def clear(self):
        self._container.clear()
        self._p_changed=1
        if hasattr(self,'_v_keys'): del self._v_keys

    def copy(self): return self.__class__(self._container.copy())

    def get(self, key, default=_marker):
        if default is _marker:
            return self._container.get(key)
        else:
            return self._container.get(key, default)

    def has_key(self,key): return self._container.has_key(key)

    def items(self):
        return map(lambda k, d=self: (k,d[k]), self.keys())

    def keys(self):
        try: return list(self._v_keys) # return a copy (Collector 2283)
        except: pass
        keys=self._v_keys=filter(
            lambda k: not isinstance(k,types.StringType) or k[:1]!='_',
            self._container.keys())
        keys.sort()
        return list(keys)

    def update(self, b):
        a=self._container
        for k, v in b.items(): a[k] = v
        try: del self._v_keys
        except: pass
        self._p_changed=1

    def values(self):
        return map(lambda k, d=self: d[k], self.keys())

    def __cmp__(self,other):
        return cmp(self._container, other._container)



=== Zope3/lib/python/Persistence/__init__.py 1.1 => 1.1.40.1 ===
 inserted by the __init__.py in ZODB, jumpstarting the process.
 """
+
+from Persistent import Persistent