objectstore.py 文件源码

def __init__(self, identity_map=None):
        if identity_map is not None:
            self.identity_map = identity_map
        else:
            self.identity_map = weakref.WeakValueDictionary()

        self.attributes = global_attributes
        self.new = util.HashSet(ordered = True)
        self.dirty = util.HashSet()
        self.modified_lists = util.HashSet()
        self.deleted = util.HashSet()