The ProxyPullSupplier interface defines the second step for connecting pull consumers to the event channel. A proxy supplier is similar to a normal supplier, but includes an additional method for connecting a consumer to the proxy supplier.
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Any object that possesses an object reference that supports the ProxyPullSupplier interface can perform the following operations:
This operation connects PullConsumer object to the ProxyPullSupplier object. A nil object reference can be passed to this operation. If so a channel cannot invoke the disconnect_pull_consumer operation on the consumer; the consumer may be disconnected from the channel without being informed. If the ProxyPullSupplier is already connected to a PullConsumer, then the CosEventChannelAdmin_AlreadyConnected exception is raised.
This operation disconnects proxy pull supplier from the event channel. It sends a notification about the loss of the connection to the pull consumer attached to it, unless nil object reference was passed at the connection time.
This operation blocks until the event data is available or the CosEventComm_Disconnected exception is raised. It returns the event data to the consumer.
This operation does not block: if the event data is available, it returns the event data and sets the data availability flag to true; otherwise it returns a long with an undefined value and sets the data availability to false. If the event communication has already been disconnected, the CosEventComm_Disconnected exception is raised.