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Contents
module Shamu
module Events
# The event {Message} consists of a set of well-defined attributes
# describing a single discrete event in the system and associated meta-data
# needed by subscribers to process the message.
#
# Messages should attempt to forward the state available at the time the
# event was published so that subscribers can process the message without
# contacting additional services.
#
# Event messages are serialized for network or IPC transimission and must
# limit attributes to primitive types (Strings, Numbers, Arrays and Hashes)
# so they can be round tripped with `Message.new( message.to_attributes )`.
class Message
include Shamu::Attributes
include Shamu::Attributes::Equality
# ============================================================================
# @!group Attributes
#
# @!attribute
# @return [String] the ID for the message. Automatically generated UUID
attribute :id
#
# @!endgroup Attributes
def initialize( * )
super
@id ||= SecureRandom.uuid
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems