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from zope.interface import interface
Interface = interface.Interface
# TODO: move these here
from twisted.pb.tokens import ISlicer, IRootSlicer, IUnslicer
class DeadReferenceError(Exception):
"""The RemoteReference is dead, Jim."""
class IReferenceable(Interface):
"""This object is remotely referenceable. This means it is represented to
remote systems as an opaque identifier, and that round-trips preserve
identity.
"""
def processUniqueID():
"""Return a unique identifier (scoped to the process containing the
Referenceable). Most objects can just use C{id(self)}, but objects
which should be indistinguishable to a remote system may want
multiple objects to map to the same PUID."""
class IRemotelyCallable(Interface):
"""This object is remotely callable. This means it defines some remote_*
methods and may have a schema which describes how those methods may be
invoked.
"""
def getInterfaceNames():
"""Return a list of RemoteInterface names to which this object knows
how to respond."""
def doRemoteCall(methodname, kwargs):
"""Invoke the given remote method. This method may raise an
exception, return normally, or return a Deferred."""
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