downstream processor
trigger flow control. Should be bigger than maxPendingMessageCountPerAckRequest
send on AckRequest to the target
Handle acknowledge message.
Handle acknowledge message. Throw MessageLossException if required.
acknowledge message received
Return how many message is actually sent by this subscription
Return how many message is actually sent by this subscription
the message to send
the target partition to send message to
1 if success
This manage the output and message clock for single downstream processor