(self, dbapi_connection, connection_record, exception)
Called when a DBAPI connection is to be "soft invalidated".

        This event is called any time the :meth:`._ConnectionRecord.invalidate`
        method is invoked with the ``soft`` flag.

        Soft invalidation refers to when the connection record that tracks
        this connection will force a reconnect after the current connection
        is checked in.   It does not actively close the dbapi_connection
        at the point at which it is called.

        .. versionadded:: 1.0.3
Called when a DBAPI connection is to be "soft invalidated".
Called when a DBAPI connection is to be soft invalidated .
def soft_invalidate(self, dbapi_connection, connection_record, exception):
        """Called when a DBAPI connection is to be "soft invalidated".

        This event is called any time the :meth:`._ConnectionRecord.invalidate`
        method is invoked with the ``soft`` flag.

        Soft invalidation refers to when the connection record that tracks
        this connection will force a reconnect after the current connection
        is checked in.   It does not actively close the dbapi_connection
        at the point at which it is called.

        .. versionadded:: 1.0.3

        """
def soft_invalidate ( self , dbapi_connection , connection_record , exception ) :