Class: RubyEventStore::Event

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_event_store/event.rb

Constant Summary collapse

BIG_VALUE = 
0b111111100100000010010010110011101011000101010101001100100110000

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(event_id: SecureRandom.uuid, metadata: nil, data: nil) ⇒ Event

Returns a new instance of Event.



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# File 'lib/ruby_event_store/event.rb', line 5

def initialize(event_id: SecureRandom.uuid, metadata: nil, data: nil)
  @event_id = event_id.to_s
  @metadata = metadata.to_h
  @data     = data.to_h
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/ruby_event_store/event.rb', line 10

def data
  @data
end

#event_id ⇒ Object (readonly)

Returns the value of attribute event_id.



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# File 'lib/ruby_event_store/event.rb', line 10

def event_id
  @event_id
end

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



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# File 'lib/ruby_event_store/event.rb', line 10

def metadata
  @metadata
end

Instance Method Details

#==(other_event) ⇒ Object Also known as: eql? 



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# File 'lib/ruby_event_store/event.rb', line 24

def ==(other_event)
  other_event.instance_of?(self.class) &&
    other_event.event_id.eql?(event_id) &&
    other_event.data.eql?(data)
end

#hash ⇒ Object

We don’t use metadata because == does not use metadata



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# File 'lib/ruby_event_store/event.rb', line 33

def hash
  [
    self.class,
    event_id,
    data
  ].hash ^ BIG_VALUE
end

#timestamp ⇒ Object 



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# File 'lib/ruby_event_store/event.rb', line 20

def timestamp
  metadata[:timestamp]
end

#to_h ⇒ Object 



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# File 'lib/ruby_event_store/event.rb', line 12

def to_h
  {
      event_id:   event_id,
      metadata:   metadata,
      data:       data
  }
end