defmodule EventStore.RecordedEvent do
  @moduledoc """
  RecordedEvent contains the persisted data and metadata for a single event.

  Events are immutable once recorded.
  """
  defstruct event_id: nil,
            stream_id: nil,
            stream_version: nil,
            correlation_id: nil,
            event_type: nil ,
            data: nil,
            metadata: nil,
            created_at: nil

  @type t :: %EventStore.RecordedEvent{
    event_id: non_neg_integer,
    stream_id: non_neg_integer,
    stream_version: non_neg_integer,
    correlation_id: String.t,
    event_type: String.t,
    data: binary,
    metadata: binary,
    created_at: NaiveDateTime.t
  }
end