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message_listener.pyc

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���hc�����������@���s<���d��Z��d�Z�d�e�f�d�������YZ�d�e�f�d�������YZ�d�S(���s����Defines a listener interface for observing certain
state transitions on Message objects.

Also defines a null implementation of this interface.
s#���robinson@google.com (Will Robinson)t���MessageListenerc�����������B���s���e��Z�d��Z�d����Z�RS(���s��Listens for modifications made to a message.  Meant to be registered via
  Message._SetListener().

Attributes:
    dirty:  If True, then calling Modified() would be a no-op.  This can be
            used to avoid these calls entirely in the common case.
  c���������C���s
���t����d�S(���s��Called every time the message is modified in such a way that the parent
    message may need to be updated.  This currently means either:
    (a) The message was modified for the first time, so the parent message
        should henceforth mark the message as present.
    (b) The message's cached byte size became dirty -- i.e. the message was
        modified for the first time after a previous call to ByteSize().
        Therefore the parent should also mark its byte size as dirty.
    Note that (a) implies (b), since new objects start out with a client cached
    size (zero).  However, we document (a) explicitly because it is important.

Modified() will *only* be called in response to one of these two events --
    not every time the sub-message is modified.

Note that if the listener's |dirty| attribute is true, then calling
    Modified at the moment would be a no-op, so it can be skipped.  Performance-
    sensitive callers should check this attribute directly before calling since
    it will be true most of the time.
    N(���t���NotImplementedError(���t���self(����(����sM���/usr/lib/python2.7/site-packages/google/protobuf/internal/message_listener.pyt���Modified2���s����(���t���__name__t
���__module__t���__doc__R���(����(����(����sM���/usr/lib/python2.7/site-packages/google/protobuf/internal/message_listener.pyR����(���s���t���NullMessageListenerc�����������B���s���e��Z�d��Z�d����Z�RS(���s%���No-op MessageListener implementation.c���������C���s���d��S(���N(����(���R���(����(����sM���/usr/lib/python2.7/site-packages/google/protobuf/internal/message_listener.pyR���M���s����(���R���R���R���R���(����(����(����sM���/usr/lib/python2.7/site-packages/google/protobuf/internal/message_listener.pyR���I���s���N(���R���t
���__author__t���objectR����R���(����(����(����sM���/usr/lib/python2.7/site-packages/google/protobuf/internal/message_listener.pyt���<module>#���s���!

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