Class: RubyEventStore::Transformations::IdentityMap

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ IdentityMap

Returns a new instance of IdentityMap.



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# File 'lib/ruby_event_store/transformations/identity_map.rb', line 4

def initialize
  @identity_map = {}
end

Instance Method Details

#dump(domain_event) ⇒ Object 



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# File 'lib/ruby_event_store/transformations/identity_map.rb', line 8

def dump(domain_event)
  @identity_map[domain_event.event_id] = domain_event
  metadata  = domain_event.metadata.to_h
  timestamp = metadata.delete(:timestamp)
  valid_at  = metadata.delete(:valid_at)

  Record.new(
    event_id:   domain_event.event_id,
    metadata:   metadata,
    data:       domain_event.data,
    event_type: domain_event.event_type,
    timestamp:  timestamp,
    valid_at:   valid_at,
  )
end

#load(record) ⇒ Object 



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# File 'lib/ruby_event_store/transformations/identity_map.rb', line 24

def load(record)
  @identity_map.fetch(record.event_id)
end