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Event store using PostgreSQL for persistence.
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Files
lib/event_store/subscriptions/all_streams_subscription.ex
defmodule EventStore.Subscriptions.AllStreamsSubscription do
@moduledoc false
@behaviour EventStore.Subscriptions.StreamSubscriptionProvider
alias EventStore.{RecordedEvent,Storage}
alias EventStore.Streams.AllStream
@all_stream "$all"
def extract_ack({event_number, _stream_version}),
do: event_number
def event_number(%RecordedEvent{event_number: event_number}),
do: event_number
def last_ack(%Storage.Subscription{last_seen_event_number: last_seen_event_number}),
do: last_seen_event_number
def unseen_event_stream(@all_stream, last_seen, read_batch_size),
do: AllStream.stream_forward(last_seen + 1, read_batch_size)
def ack_last_seen_event(@all_stream, subscription_name, last_event_number),
do: Storage.ack_last_seen_event(@all_stream, subscription_name, last_event_number, nil)
end